Glad to help. Change the lights to led and it slows the battery from draining. You battery might be permanently damaged so make sure you do a load test or have it tested because you don't want to get caught off guard in the near future. Thanks again for the great feedback
OMG this video is perfect! Step by stop, from charging the fuse box to get the trunk open to charging the battery: all on point! I found this video when I went to help a friend stranded in the middle of the night and it was all I needed. Excellent video. Cannot recommend it enough.
Saved my @$$ last night! AGM battery drained dead with no signs of life whatsoever... A friend came by and jump started me as shown in the clip. Thanks a lot!
I’m glad to hear the video was help and get it changed out. Once the battery goes bad there is not much a chance that it won’t happen again real soon. Thank you for posting this. As a smaller UA-cam Creator, my channel runs on the generosity of viewers like you. ☕️ ☕️☕️Buy Me A Coffee! www.buymeacoffee.com/RandomFix
Thank you for a quick and easy and handy video. Once I figured out that the first jump was only for unlocking the Prius to get into the rear where the battery was, everything went wonderfully.
So all you needed to do was charge from the back, did it matter how long you did this? My car won't start but the map light and dome light are dimmed when the car is opened, would that be a battery issue or something else?
@@jhicksobu19892011 There is a battery in the back that you'll find by lifting the cover to get to the spare tire. The battery is on the right (I had to pull off a cover once I got in there). You'll see the battery there where you can hook up some jumper cables to jump the car... once you have the jumpers on the battery correctly (Plus to Plus, negative to negative), you should see your dash lights come up to normal. Pushing the start button should start the car if everything else is good. On my Prius, this worked and it started and went for a drive and all was good. Came back after another could day and it was dead again. I need another battery - It was at least 4 years old. I think what might be confusing to some people with this is where first a jumper connection is needed to unlock the car to get into where the battery is in the back. My car was locked. Connecting the jumpers under the hood is to simply allow the door locks to operate and unlock to gain access to the rear.
Thank you for sharing and yes you are right and I didn't want to make the video longer and as you stated you need to have enough power to open the rear tailgate and that is purpose of the power ports in the engine compartment.
Thank you SO much! You saved me having to call for service or a tow to service. I was so nervous using the fuse box to jump. I am grateful that you recommended to charge the battery in the back of the car after small jump to open the trunk. I was worried that the jump on the fuse wouldn’t work because there is black plastic backing it with no way to separate the metal from it, but apparently only one side of the cable clipper needs to make contact with the metal because it worked!
@@RANDOMFIX Just wanted to emphasize how superior your video was. In order to avoid being charged for the car to be towed, we opted to charge the rear battery. It did involve crawling into the hatch to manually release the latch. We were able to charge it and get it down to the repair shop to get a new battery. All this just ahead of very cold weather and a snow storm.
Just what I needed to know to jump my 2015 Prius. It jumped so quickly and easily from the front fuse box. Now I know. Ingenious idea from engineers design.
Literally this helped so much, my dumb ass left my lights on parked in my garage, there was no even giving enough power to open the hatch, but after another video on how to manually open it, this was what helped to start it.
Thank you for the video. I couldn't jumpstart my 2012 Prius by connecting cables to the positive terminal in the fuse box and the engine frame. I was prepared to tow my car to the shop. Thankfully, the tow truck driver connected the negative cable to the inverter assembly frame and that worked!
@@RANDOMFIX Yea the tow truck driver said a lot of Prius batteries have been losing their charge. I think it's a result of cars sitting idle for long times (due to Covid-19) & we forget to turn off a light.
You saved our grandson's bacon here! Maybe he left a light on, but it was an overnight visit and his 2010 Prius was dead. Able to follow your vid and find what we needed with flashlight. Able to skip the door & trunk lock issues; otherwise wouldn't even have known to look in the trunk. We could have used more visual on getting that 2nd cover off the 12-volt in the corner of the trunk; he had to dismantle the subfloor storage a bit. We carry the cables, he doesn't, but between the 3 of us it actually went fast.
Thanks for your very detailed and instructional clip! You really helped me finding the jumper terminal in the fuse box! I tried to find it by using the Toyota manual, but the picture in the manual is so small and unclear that I gave up until I watched your clip. Many thanks!!!
Tova, Glad to hear the video was of service, make sure you put the battery on a tickle charger or have the battery tested. Only replace it a AGM battery (the prius came with 12v AGM battery from factory) not a cheaper acid battery if needed Cheers.
You helped me so much. I just bought a 2010 puris that I love. I have not driven it in a couple of days and it would not start. I did exactly as you said and it started and ran. Unfortunately, I drove it for about 15 minutes and parked it. It would not start back up. It's late and I'll try again tomorrow. Thanks you!
Hi LT, thanks for the feedback, if you Prius is not starting after a few days of starting please check the connection on th main 12v battery in the trunk for corrosion and clean and test the battery. It sounds link your 12v battery is going bad. This battery is a little expensive around $150. Best of luck and let me know how it goes. _Randomfix
Mr. C Jokey, Glad to hear the video was of service, make sure you put the battery on a tickle charger or have the battery tested. 60% of the time this means you need a new battery unless you accidentally left something on or the cold weather is already affecting your battery. Let me know if you have any question. Cheers.
Gabrielle Arboleda , I normally leave the booster cables connected for at 10 minutes to give the Prius 12 v battery a chance charge a little bit. Once you start the Prius you want to drive it for at least 30 minutes before turning it off. Best of luck.
Thanks for sharing, very detailed and informative video on jump starting a prius. I like the part about finding actual cause of the dead battery and putting the battery on battery tender.
Thank U! my friend, it was first time dead battery in Prius. I had no clue where to look & puzzled when I didn’t find it under the hood...LOL!!...Great Job! explaining & making it easy to jump start...God Bless & take care!
A very helpful video, especially since I just bought a 2010 Prius last weekend. Now I’m going out to look it over and make sure I remember your video! 👍
Thank you so much! I wasn’t sure what to do and my uncle suggested I come here for this video. Only questions I have are what settings to put the charger on? I’m using the Schumaker speed charge.
Indeed! On a Toyota hybrid turning on the system doesn't need high (cranking) amperage because the 12v battery doesn't crank the engine but just makes the high voltage hybrid battery go life which then cranks the engine with the electric high voltage motors. I highly doubt that there is more than 100 amps needed to start the Prius so you do not need to put the contact clamps directly to the battery in the trunk. Just leave it the clamps at the front under the hood, worked with a Prius 2 for me. And due to the low amp usage the donor car doesn't even have to run the engine. As a matter of fact a quick googling has revealed that you generally do not need more than 30 amps with an occasional hint of a 60 amp peak, an amount of energy of about 90 amp-seconds, which is a ridiculously tiny amount of energy and power that is needed to start a up a Prius system into "Ready" state and get the engine going. irobin.org/prius/startup/startup.html
Thanks so much dude, I haven't tried it yet but I'm 99 percent t sure this is my problem. Which battery is better to charge on though, front or back? Or does it really depend on other circumstances?
Buy a battery tester that can measure CCA and check the 12V battery regularly. If below 300 CCA buy a better one. I buy used ones and test them out at the yunk yard. If you have a weak battery (or even a good one) and you're not starting your car for more than a week it's probably better do disconnect the 12 V battery. The electronics will discharge the 12 V battery slowly. If you like taking risks jump start through the fuse box. You'll feel great if all the modules still work. Don't complain if a module starts failing after a few weeks. In this situation in this video I would charge the battery while disconnected or take the battery home and charge it with a Ctek. You'll be able to open the trunk from the inside without battery power from the back seat.
Thank you, I left my doors open to air the car out after a gas can leaked...one thing leads to another some days! Forgot to turn off the interior light.
I glad you found the video to be helpful. I would recommend changing the dome light to led as it will drain the battery that fast. ua-cam.com/video/OH9h0RBrUec/v-deo.html
Thank you for sharing. And yes a jump start pack would be very effective in starting the prius. There are even jump packs without batteries so you don't need to worry about keeping them charged ua-cam.com/video/N0wHlv1wyD4/v-deo.html
Great question, i always ran the helping cars engine once they are connected because sometime it will take a while for it to charge the other battery. To be safe you can have the helping car turned off and start it once they are connect. I've never had a bad experience but i can understand the logic. _Randomfix
Al, thankz for the great feedback. Can I get your help? CHECK OUT MY OTHER CHANNEL and subscriber if you like it. THANK YOU ▶️ ua-cam.com/channels/-wuhWwzZnFOWK-GMsP6Ejw.html MANY THANKS _Randomfix
Ken, how's your parking situation? if you parking the vehicle in your home garage then you can leave the hood up and just connect to little connect at the front or in the hatch, please make sure you keep a window open in the garage and also in your car as the battery inside the car. Charging batteries can produce dangerous/explosive gas even with a little battery tender. I hope that helps and let me know if you have any questions
I read that you are not supposed to start the other car that you are using to charge the prius battery.....is this true? Will it charge it if you just have it hooked up and don't have the other car started??? Thanks!
Hi Lacey, Yes, the Prius the battery will charge if you don't start the other vehicle. However, I don't recommend doing it that way, The reason why you want the other vehicle on is so the alternator of vehicle running will help revive the Prius's 12-volt battery and not take a chance of depleting the booster vehicle's battery. I've never had a problem jumping a vehicle in this manner over the last 25 years. I hope that helps. _RandomFix
You are right the 12 volts system just needs to activate the hybrid system and there no real starter. However with that said there is a little concern as those post are limited to 100 amps ( I just went through this on a 2012 Prius c) and Incase the battery is in really had condition you may overload the system. The chances are slim but there is still a chance. And that 100 amp fuse is a pain in the next to change as it’s bolted in and works like a puzzle. ua-cam.com/video/NaR5gJdUOyg/v-deo.htmlsi=HuUOuJ4tpPRJeWKC
So I'm not sure what I did wrong or different but my key would not work after connecting the jumpers on the front battery as explained here. I could hear the energy going in but nothing happened. I just left the helping car on for like 10 minutes and then I heard the Prius turn on by itself. According to the battery icon inside the Prius the battery was fine. Maybe it was an issue with the key or the ignition?? In the end the key was working fine and so was my Prius so again, I'm not sure why my case was different.
2 роки тому
Oh btw. This video was still super helpful. Thanks
Glad to help. You need to load test the battery as it may work fine after it start. This is pretty common during the first cold months. This what I show in this video.ua-cam.com/video/Zpe_oOUZsUs/v-deo.html
I thought the Prius actually uses the hybrid battery to start the engine. The 12V battery is just to run the 12V systems. So putting the jumper cables on the terminal in the fuse box area would not result in a large current draw.
Today I changed my 2009 touring prius passenger mirror and when I was done my prius was dead, did not wanna start. Don't know if battery drained while door was open but car was working fine before and during installation. I wonder if a cable became loose on door and that is preventing it from turning on which does not make any sense?
Marco, sorry for the late reply, There is nothing really in door that would drain the battery other dome light as they were working on it. One thing to keep in mind is colder weather kills batteries. Did you ever get it figured out?
I followed these instructions this morning and now my battery in the back is making a high-pitched noise that last about five seconds and it’s doing it every two minutes. I called Toyota and they told me do not jump the battery from the back because it’s only a 12 V battery and it’s easy to put too much voltage on it. I will probably have to replace my battery now. They told me to jump it from the front.
Voltage is the same no matter when you connected, as to the amperage, it would be better to connect directly to rest battery then a small port on the front. Thank you sharing and I can see the logic is toyota making this statement.
Thanks for making and posting this video. My. 2013 Prius battery drained (parked after state issued "shelter in place" and let it sit for almost 50 days). I found another video (very limited) and it only showed using the front fuse box connection to jump start. I had read warnings about that approach so I put a trickle charger on for 24 hours and this morning it started without a jump. I had also read about driving the car for 30 minutes to charge up the battery. Since I used the trickle charger overnight I concluded the battery was likely fully charged. The question: even with using an overnight trickle charge would you ALSO recommend a 20-30 minute drive to charge up the battery? Thanks also for showing where to find the battery in back. I had looked back there but did not spot it, I will look again. I will use your strategy if I run into this again. I could not unlock the hatch due to the drained battery, now I realize I could have just used enough juice to be able to unlock the hatch. You gave very good video and audio coverage of this entire process. I will be watching your other videos.
I don’t understand. It’s perfectly fine to jumpstart the car using the positive terminal in the fuse box at front. I’ve done it at least once a winter. It’s also what the manufacturer instructs. Why would you need to get to the battery at the back?
For what it's worth, my Prius V battery died last night and, when the technician came out to give me a jump, he connected it to the fuse box and engine block in the front and we had no luck. So we popped the trunk, jumped the actual 12V battery in the back, and it fired right up. It's nice to have options.
@@alexmontgomerywx I’ve had the same experience and it’s because the connection to the terminal and to the car’s body wasn’t good. A little wiggling and it usually works.
I just had my 2910 Prius jumped last week and my whole audio system, back up camera, blue tooth etc. Are all crashed. AAA CAME and jump started my car from the battery under the hood. Not from the 12 volts in the trunk. Did they surge my system? Do you know of a reset for my audio system? I Took it to the dealer and they said I need a whole new system to the tune of 3200. Please help me car angel!
Susan, I'm so sorry to hear about your 2010 Prius. Anything is a possibility, AAA could of jumped backwards or something else. Did you remembering anything during they jumped it? I'm here to help. _Randomfix
Check all the fuses in the fuse box. Its very simple. Pop the hood, open the fuse box panel, and check all the fuses one by one. Inspect each of them carefully. One of them could be blown. If so, go to any car parts store and buy a replacement fuse. Make sure the fuse number matches if you do replace it. The number means amperage. In other words, how much power until the fuse breaks. Fuses exist to protect car's electrical systems if something goes wrong. It cuts the electricity if there is too much power going through the circuit.
Crazy King, It all depends on your driving style, I recommend 60k but if you have the money 30k miles would be ideal. It only take about 15 minutes to do it yourself. Let me know if you want to record a video next time I'm changing the transmission fluid. _Randomfix
And boom..... never connect like that.... off gassing from batteries will explode from spark. I personally would have gone with both on the prius then pos to battery of jump vehicle then to bolt on motor of jump vehicle. .... Having a large number of them here- I can agree with you on the not wanting to use that small "jump" plate in fuse box. But i have boosted them in -20°c from that plate.... best is to connect and let car sit with jump car running for 4 or 5 min then start dead car... battery will have taken enough of a jump that with the cables still on it will fire right up. Just tell the person to go for a 30 or more min drive with nothing turned on.
Jthetowtruckguy1, thanks for you sharing your knowledge, the little positive jumper port's backside is covered with plastic and so you will literally be jumping a car with only two or three teeth of you the jumper cables. Cheers
Yup.... thats why I said to let car take a charge for while before starting. . I usually pop cables on then go back in truck and write invoice for job.... then that is usually about 3-5 min.... then its an easy start.... those small motors don't take much to crank over
Thanks for this, left a dumb interior light on. You are a lifesaver.
Glad to help. Change the lights to led and it slows the battery from draining. You battery might be permanently damaged so make sure you do a load test or have it tested because you don't want to get caught off guard in the near future. Thanks again for the great feedback
OMG this video is perfect! Step by stop, from charging the fuse box to get the trunk open to charging the battery: all on point! I found this video when I went to help a friend stranded in the middle of the night and it was all I needed. Excellent video. Cannot recommend it enough.
Saved my @$$ last night! AGM battery drained dead with no signs of life whatsoever... A friend came by and jump started me as shown in the clip. Thanks a lot!
I’m glad to hear the video was help and get it changed out. Once the battery goes bad there is not much a chance that it won’t happen again real soon. Thank you for posting this.
As a smaller UA-cam Creator, my channel runs on the generosity of viewers like you.
☕️ ☕️☕️Buy Me A Coffee! www.buymeacoffee.com/RandomFix
Thank you for a quick and easy and handy video. Once I figured out that the first jump was only for unlocking the Prius to get into the rear where the battery was, everything went wonderfully.
Michael, thank you for the great feedback about the Prius Jump start. Much appreciated
@@RANDOMFIX It is just wonderful you took the time to make someone else's day better... Good on ya... may it come back to you 100 fold...
So all you needed to do was charge from the back, did it matter how long you did this? My car won't start but the map light and dome light are dimmed when the car is opened, would that be a battery issue or something else?
@@jhicksobu19892011 There is a battery in the back that you'll find by lifting the cover to get to the spare tire. The battery is on the right (I had to pull off a cover once I got in there). You'll see the battery there where you can hook up some jumper cables to jump the car... once you have the jumpers on the battery correctly (Plus to Plus, negative to negative), you should see your dash lights come up to normal. Pushing the start button should start the car if everything else is good.
On my Prius, this worked and it started and went for a drive and all was good. Came back after another could day and it was dead again. I need another battery - It was at least 4 years old.
I think what might be confusing to some people with this is where first a jumper connection is needed to unlock the car to get into where the battery is in the back. My car was locked. Connecting the jumpers under the hood is to simply allow the door locks to operate and unlock to gain access to the rear.
Thank you for sharing and yes you are right and I didn't want to make the video longer and as you stated you need to have enough power to open the rear tailgate and that is purpose of the power ports in the engine compartment.
Thank you SO much! You saved me having to call for service or a tow to service. I was so nervous using the fuse box to jump. I am grateful that you recommended to charge the battery in the back of the car after small jump to open the trunk. I was worried that the jump on the fuse wouldn’t work because there is black plastic backing it with no way to separate the metal from it, but apparently only one side of the cable clipper needs to make contact with the metal because it worked!
Hi Cindy, I'm glad to hear the video was helpful 😊 thank you for the feedback.
You are a genius. This is the only video that actually is helpful and I've been searching for a LONG time.
I’m far from a genius and I thank you for the compliment.
@@RANDOMFIX Just wanted to emphasize how superior your video was. In order to avoid being charged for the car to be towed, we opted to charge the rear battery. It did involve crawling into the hatch to manually release the latch. We were able to charge it and get it down to the repair shop to get a new battery. All this just ahead of very cold weather and a snow storm.
Great video. Thank you for showing the battery location and the alternate approach to jump. A+++
Glad it was helpful and thank you for the great feedback about the Prius jumpstart video.
Just what I needed to know to jump my 2015 Prius. It jumped so quickly and easily from the front fuse box. Now I know. Ingenious idea from engineers design.
I didn't see your commeent before, do you still need help?
Literally this helped so much, my dumb ass left my lights on parked in my garage, there was no even giving enough power to open the hatch, but after another video on how to manually open it, this was what helped to start it.
I appreciate your constructive comments, thank you for the feedback!
Thank you for the video.
I couldn't jumpstart my 2012 Prius by connecting cables to the positive terminal in the fuse box and the engine frame. I was prepared to tow my car to the shop.
Thankfully, the tow truck driver connected the negative cable to the inverter assembly frame and that worked!
Robert, I'm glad the video helped. Yesterday while shopping I had help someone jump their prius. The colder months kill batteries.
@@RANDOMFIX Yea the tow truck driver said a lot of Prius batteries have been losing their charge. I think it's a result of cars sitting idle for long times (due to Covid-19) & we forget to turn off a light.
This vid ROCKS! Was able to jump a friend's Prius. What a bizarre setup. Either way ur vid was spot on & made it easy peasy. THANKS!
Kimberly, thank you so much for the great feedback and for helping your friend.
Very nice job with the video and explanation. You just helped me jump start my Prius and learn something new.
Thank you for your feedback, much apprecated
You saved our grandson's bacon here! Maybe he left a light on, but it was an overnight visit and his 2010 Prius was dead. Able to follow your vid and find what we needed with flashlight. Able to skip the door & trunk lock issues; otherwise wouldn't even have known to look in the trunk. We could have used more visual on getting that 2nd cover off the 12-volt in the corner of the trunk; he had to dismantle the subfloor storage a bit. We carry the cables, he doesn't, but between the 3 of us it actually went fast.
Ellen, glad to help.
Just open the back door let down the rear seat a push the manual release on the inside back door!
for my prius v, I wasn’t able to open the back door from inside
@@kee_xoxo Same
I have a Prius V and was able to.
@Sue Aldine As-
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Best video I found to jump my 2010 prius. Thanks
Thank you for your feedback, much apprecated!
Thanks for your very detailed and instructional clip! You really helped me finding the jumper terminal in the fuse box! I tried to find it by using the Toyota manual, but the picture in the manual is so small and unclear that I gave up until I watched your clip. Many thanks!!!
Tova, Glad to hear the video was of service, make sure you put the battery on a tickle charger or have the battery tested. Only replace it a AGM battery (the prius came with 12v AGM battery from factory) not a cheaper acid battery if needed Cheers.
Right amount of detail.
Thank you
Nice job very clear demonstration on how to do it thank you.
Glad to hear the video was helpful. Thank you for taking the time to post the positive feedback.
Bro you're a blessing lol You just help me out big time man. Your video was right on time brother thank you and good job 💪🏽👊🏽
Glad to help brother thank you for the love and for taking the time to post your feedback
Thanks for making this video! Your method to get the trunk open without starting the 'good car engine' was brilliant.
Bradley thank you so much for the great feedback.
thanks so much for this detailed battery charge. Bookmarked in two places..!
Sujannna, Your always welcome and thanks for the positive feedback. _RandomFix
You helped me so much. I just bought a 2010 puris that I love. I have not driven it in a couple of days and it would not start. I did exactly as you said and it started and ran. Unfortunately, I drove it for about 15 minutes and parked it. It would not start back up. It's late and I'll try again tomorrow. Thanks you!
Hi LT, thanks for the feedback, if you Prius is not starting after a few days of starting please check the connection on th main 12v battery in the trunk for corrosion and clean and test the battery. It sounds link your 12v battery is going bad. This battery is a little expensive around $150. Best of luck and let me know how it goes. _Randomfix
How is your battery? I also have 2010. I read on forums that the 12v "service" lifetime is 4 years, or less under extreme heat/cold weather.
Couldn't find the battery on the Prius- haven't drove in a week, drove 1 1/2 mile to dog park & car wouldn't start. You saved me, many thanks!!
Mr. C Jokey, Glad to hear the video was of service, make sure you put the battery on a tickle charger or have the battery tested. 60% of the time this means you need a new battery unless you accidentally left something on or the cold weather is already affecting your battery. Let me know if you have any question. Cheers.
How long did you let the jumper car on? 2 minutes? or more?
Gabrielle Arboleda , I normally leave the booster cables connected for at 10 minutes to give the Prius 12 v battery a chance charge a little bit. Once you start the Prius you want to drive it for at least 30 minutes before turning it off. Best of luck.
Thank you RandomFix. Your video and your demonstration were very useful.
anytime, cheers
Thanks for sharing, very detailed and informative video on jump starting a prius. I like the part about finding actual cause of the dead battery and putting the battery on battery tender.
Thanks. Let me know if you have any questions about your Prius.
Thank U! my friend, it was first time dead battery in Prius. I had no clue where to look & puzzled when I didn’t find it under the hood...LOL!!...Great Job! explaining & making it easy to jump start...God Bless & take care!
Naveen, I'm gald to help. Thank you for the feedback. Have a great day. _Randomfix
A very helpful video, especially since I just bought a 2010 Prius last weekend. Now I’m going out to look it over and make sure I remember your video! 👍
Itsalgud1, Thanks for the positive feedback, much appreciated. _Randomfix
Thank you so much! I wasn’t sure what to do and my uncle suggested I come here for this video. Only questions I have are what settings to put the charger on? I’m using the Schumaker speed charge.
Sorry for the late reply! did you find a solution?
I love you so much
Glad to help. Thank you for the support and for taking the time to post your feedback. 🤩
Thanks for reply. I did solve the problem.
thank you for the feedback!
Good demonstration
Thank you
Worked like a charm. Ty!
Glad the video and thank you for taking the time to post this great feedback. Much appreciated
Thank you sir. Saved my ass
glad to help, thank you so much for the great feedback
@@RANDOMFIX anytime
Thankyou sir
Glad to help.
Nice 👍
Thanks for the great feedback
RANDOMFIX it help me out my 2010 Prius park too long in garage it won’t start
Thank U So Much 👍🏻😉 !!!! You just Saved Me like $500 Dlrs that I was about to spend.GOD BLESS You,Amen !!!🙏🏼
Glad I could help!
Big help! Very clear and informative. Thank you!!
Glad it was helpful!
Excellent video - thank you!
Glad to help
Well done sir! Well done!
Thank you.
Glad to help, thank you for the great feedback
You saved my weekend, many thanks!
Glad to help, enjoy your weekend.
The 12 volt battery is only used to turn on the system the high voltage hybrid battery starts the engine all this information is in the owners manual.
Indeed! On a Toyota hybrid turning on the system doesn't need high (cranking) amperage because the 12v battery doesn't crank the engine but just makes the high voltage hybrid battery go life which then cranks the engine with the electric high voltage motors. I highly doubt that there is more than 100 amps needed to start the Prius so you do not need to put the contact clamps directly to the battery in the trunk. Just leave it the clamps at the front under the hood, worked with a Prius 2 for me. And due to the low amp usage the donor car doesn't even have to run the engine.
As a matter of fact a quick googling has revealed that you generally do not need more than 30 amps with an occasional hint of a 60 amp peak, an amount of energy of about 90 amp-seconds, which is a ridiculously tiny amount of energy and power that is needed to start a up a Prius system into "Ready" state and get the engine going.
irobin.org/prius/startup/startup.html
Thanks! Appeciate the info!
Glad it was helpful!
Do you need to charge both the fuse box and the battery? What if the fuse box won't charge?
Charging is okay from either location.
Many thanks from England. 👍
Glad to help
Thanks so much dude, I haven't tried it yet but I'm 99 percent t sure this is my problem. Which battery is better to charge on though, front or back? Or does it really depend on other circumstances?
Its the same battery. Since the physical battery is in the trunk covered by panels, Toyota have built in an easy access port on the front of the car.
It is extremely easy to use the fuse box area under the hood.
Sorry for the late reply! did you find a solution?
Thanks
Welcome
Thank you so much
I appreciate your constructive comments, thank you for the feedback!
Thanks!
I appreciate your constructive comments, thank you for the feedback!
Thank you so much for this video! It was truly a lifesaver! Worked like a charm!!
I appreciate your constructive comments, thank you for the feedback!
Thanks for showing everything in details, very helpful!
My pleasure and thanks for great feedback. _Randomfix
Had to show this to my stepdad
Marcus, I hope it helped. _Randomfix
What are you doing, stepdad
Buy a battery tester that can measure CCA and check the 12V battery regularly. If below 300 CCA buy a better one. I buy used ones and test them out at the yunk yard.
If you have a weak battery (or even a good one) and you're not starting your car for more than a week it's probably better do disconnect the 12 V battery. The electronics will discharge the 12 V battery slowly.
If you like taking risks jump start through the fuse box. You'll feel great if all the modules still work. Don't complain if a module starts failing after a few weeks.
In this situation in this video I would charge the battery while disconnected or take the battery home and charge it with a Ctek.
You'll be able to open the trunk from the inside without battery power from the back seat.
I appreciate your constructive comments, thank you for the feedback!
Thank you, I left my doors open to air the car out after a gas can leaked...one thing leads to another some days! Forgot to turn off the interior light.
I glad you found the video to be helpful. I would recommend changing the dome light to led as it will drain the battery that fast.
ua-cam.com/video/OH9h0RBrUec/v-deo.html
Think I hit the dome light when I got out of my car and my battery is dead. Thanks for the help!
Glad to help and thank you for the feedback
Guys this old method, there's smul device call start jump power bank, size of mobile phone comes with little jump start cable. Cost 20 GBP on ebay.
Thank you for sharing. And yes a jump start pack would be very effective in starting the prius. There are even jump packs without batteries so you don't need to worry about keeping them charged ua-cam.com/video/N0wHlv1wyD4/v-deo.html
Thank You so much perfect just what I needed!!!
I appreciate your constructive comments, thank you for the feedback!
Omg!!! Thank you!! This video was a lifesaver..
Glad it helped!
Question: I’ve read that the helping car should not run its engine while charging because you could overeload the 12v. What do you think??
Great question, i always ran the helping cars engine once they are connected because sometime it will take a while for it to charge the other battery. To be safe you can have the helping car turned off and start it once they are connect. I've never had a bad experience but i can understand the logic. _Randomfix
I have an automatic jumper but the cords aren't long enough to reach the bolt and the positive terminal. Where else can I attach negative?
Any metal part that is not super thin and not painted.
I thought you connect the positive and negative on the jumper car first? But you connected both positives first?
Always connect the positive first, the whole chassis is negative so there will be less chance for error or accidental connections.
Excellent video dude. Thanks!
I appreciate your constructive comments, thank you for the feedback Rosario!
Thanks was not sure how to jump start this car ! did not want to burn up anything ...also was told never run out of gas ? Thanks
Al, thankz for the great feedback. Can I get your help? CHECK OUT MY OTHER CHANNEL and subscriber if you like it. THANK YOU ▶️ ua-cam.com/channels/-wuhWwzZnFOWK-GMsP6Ejw.html MANY THANKS _Randomfix
Thank you - this video was very helpful
Glad it was helpful!
So in conclusion you can jump start the prius from the front or the back right? Which one is more recommended?
Only jump start from the BACK main battery to not overload the system
Exactly, thank you.
Same on Lexus CT200h for all those curious.
I appreciate your constructive comments, thank you for the feedback!
Very helpful, thanks boss!
I appreciate your constructive comments, thank you for the feedback!
How do I attach Battery Tender to Prius to maintain charge while on vacation?
Ken, how's your parking situation? if you parking the vehicle in your home garage then you can leave the hood up and just connect to little connect at the front or in the hatch, please make sure you keep a window open in the garage and also in your car as the battery inside the car. Charging batteries can produce dangerous/explosive gas even with a little battery tender. I hope that helps and let me know if you have any questions
I read that you are not supposed to start the other car that you are using to charge the prius battery.....is this true? Will it charge it if you just have it hooked up and don't have the other car started??? Thanks!
Hi Lacey, Yes, the Prius the battery will charge if you don't start the other vehicle. However, I don't recommend doing it that way, The reason why you want the other vehicle on is so the alternator of vehicle running will help revive the Prius's 12-volt battery and not take a chance of depleting the booster vehicle's battery. I've never had a problem jumping a vehicle in this manner over the last 25 years. I hope that helps. _RandomFix
Can you use the prius battery the on the back to jump start another car
Good video. Can I assume it is safe to jump a Prius with one of those portable battery jump starters like a BoltPower??
Hi Jim, yes you jump start the prius with a jump pack.
thank you.
thank you for the feedback!
Thanks for the help
Brian, Thanks for the positive feedback. _RandomFix
great video, thank you
Anytime, Cheers
Thank you thank you ☺😀🌞
I appreciate your constructive comments, thank you for the feedback!
Would a battery booster with rechargeable li-ion batteries connected to the under hood positive and negative terminals achieve the same result?
Sorry for the late reply! did you find a solution?
I though that prius is Plug-in hybrid that have electric socket e.g. tesla, that you can use at 150kW DC supercharger. Well, it does not look like.
I think the superchargers are exclusive to Tesla
Thanks! Great video...best!
Glad you liked it! Appreciate the feedback. Thanks
Nice vedio,thanks a lot.
Your welcome, glad the video helped.
Awesome, man. Thanks so much.
Glad to help!
Just jump through fuse box and push start bottom. Open the trunk and bla bla bla bla its not necessary.
thank you for the feedback!
Very helpful. Greatly appreciated
Thank You for great feedback. _Randomfix
Thank you for the video !
My pleasure, happy new year's. _Randomfix
It will not overload if u jump from front
You are right the 12 volts system just needs to activate the hybrid system and there no real starter. However with that said there is a little concern as those post are limited to 100 amps ( I just went through this on a 2012 Prius c) and Incase the battery is in really had condition you may overload the system. The chances are slim but there is still a chance. And that 100 amp fuse is a pain in the next to change as it’s bolted in and works like a puzzle. ua-cam.com/video/NaR5gJdUOyg/v-deo.htmlsi=HuUOuJ4tpPRJeWKC
Hey what/how do you mean when you say you were afraid to overload the front battery?
Sorry for the late reply! did you find a solution?
So we should NOT use the fuse box in the front to jump it? Only the battery in the back?
You could use the fuse book but I recommend the back battery.
@@RANDOMFIX Thanks for the reply! I ended up using the fuse box just to save myself some trouble, and it worked fine.
Good to hear.
So I'm not sure what I did wrong or different but my key would not work after connecting the jumpers on the front battery as explained here. I could hear the energy going in but nothing happened. I just left the helping car on for like 10 minutes and then I heard the Prius turn on by itself. According to the battery icon inside the Prius the battery was fine. Maybe it was an issue with the key or the ignition?? In the end the key was working fine and so was my Prius so again, I'm not sure why my case was different.
Oh btw. This video was still super helpful. Thanks
Glad to help. You need to load test the battery as it may work fine after it start. This is pretty common during the first cold months. This what I show in this video.ua-cam.com/video/Zpe_oOUZsUs/v-deo.html
I thought the Prius actually uses the hybrid battery to start the engine. The 12V battery is just to run the 12V systems. So putting the jumper cables on the terminal in the fuse box area would not result in a large current draw.
Your right, it's not suppose too but it is better to caution on the side of error. Thank you sharing
Today I changed my 2009 touring prius passenger mirror and when I was done my prius was dead, did not wanna start.
Don't know if battery drained while door was open but car was working fine before and during installation.
I wonder if a cable became loose on door and that is preventing it from turning on which does not make any sense?
Marco, sorry for the late reply, There is nothing really in door that would drain the battery other dome light as they were working on it. One thing to keep in mind is colder weather kills batteries. Did you ever get it figured out?
Thanknu for ur reply. Yes I just jump started the prius battery and it's been fine since then:)
I followed these instructions this morning and now my battery in the back is making a high-pitched noise that last about five seconds and it’s doing it every two minutes. I called Toyota and they told me do not jump the battery from the back because it’s only a 12 V battery and it’s easy to put too much voltage on it. I will probably have to replace my battery now. They told me to jump it from the front.
Voltage is the same no matter when you connected, as to the amperage, it would be better to connect directly to rest battery then a small port on the front. Thank you sharing and I can see the logic is toyota making this statement.
Good job !
Thank you for the feedback. _Randomfix
Thanks for making and posting this video. My. 2013 Prius battery drained (parked after state issued "shelter in place" and let it sit for almost 50 days). I found another video (very limited) and it only showed using the front fuse box connection to jump start. I had read warnings about that approach so I put a trickle charger on for 24 hours and this morning it started without a jump. I had also read about driving the car for 30 minutes to charge up the battery. Since I used the trickle charger overnight I concluded the battery was likely fully charged. The question: even with using an overnight trickle charge would you ALSO recommend a 20-30 minute drive to charge up the battery? Thanks also for showing where to find the battery in back. I had looked back there but did not spot it, I will look again. I will use your strategy if I run into this again. I could not unlock the hatch due to the drained battery, now I realize I could have just used enough juice to be able to unlock the hatch. You gave very good video and audio coverage of this entire process. I will be watching your other videos.
Sorry for the late reply! did you find a solution?
Do I need to turn on one or both vehicles and when? How do you safely remove the cables?
Yes, leave the boaster car on. Always remove the negative cable last. _Randomfix
I don’t understand. It’s perfectly fine to jumpstart the car using the positive terminal in the fuse box at front. I’ve done it at least once a winter. It’s also what the manufacturer instructs. Why would you need to get to the battery at the back?
For what it's worth, my Prius V battery died last night and, when the technician came out to give me a jump, he connected it to the fuse box and engine block in the front and we had no luck. So we popped the trunk, jumped the actual 12V battery in the back, and it fired right up. It's nice to have options.
Thank you for sharing, much appreciated
@@alexmontgomerywx I’ve had the same experience and it’s because the connection to the terminal and to the car’s body wasn’t good. A little wiggling and it usually works.
Why don’t you use the terminals in the relay under the hood to jump the car? Other videos do it like that.
Sorry for the late reply! did you find a solution?
I tried to charge the battery with a trickle charger but it’s not working, does that mean that the battery have to be replaced? It’s a 2014
Sorry for the late reply! did you find a solution?
Needed this video. Thank you!
thank you for the feedback!
I just had my 2910 Prius jumped last week and my whole audio system, back up camera, blue tooth etc. Are all crashed. AAA CAME and jump started my car from the battery under the hood. Not from the 12 volts in the trunk. Did they surge my system? Do you know of a reset for my audio system? I Took it to the dealer and they said I need a whole new system to the tune of 3200. Please help me car angel!
Susan, I'm so sorry to hear about your 2010 Prius. Anything is a possibility, AAA could of jumped backwards or something else. Did you remembering anything during they jumped it? I'm here to help. _Randomfix
Check all the fuses in the fuse box. Its very simple. Pop the hood, open the fuse box panel, and check all the fuses one by one. Inspect each of them carefully. One of them could be blown. If so, go to any car parts store and buy a replacement fuse. Make sure the fuse number matches if you do replace it. The number means amperage. In other words, how much power until the fuse breaks.
Fuses exist to protect car's electrical systems if something goes wrong. It cuts the electricity if there is too much power going through the circuit.
I've had the car to 4 shops. They all say the system is fried. I think it surged when they jumped it from the front.
Check hybrid system means ? Your battery is dead ?correct I have to get mine charge I can use my system
did you get the issue handled?
No man sadly my battery is toast i need to get a new baterry pack expensive😭😭like 3,000just for the battery
Can I get a jump from a Prius if my battery is dead?
Sure, another Prius can jump you.
Wow. You need a portable battery booster
Its just good to have a working battery.
At what milage do you change transmission fluid?
Crazy King, It all depends on your driving style, I recommend 60k but if you have the money 30k miles would be ideal. It only take about 15 minutes to do it yourself. Let me know if you want to record a video next time I'm changing the transmission fluid. _Randomfix
Thank you for replying. That would be great if you post a transmission fluid change record.
60k
And boom..... never connect like that.... off gassing from batteries will explode from spark. I personally would have gone with both on the prius then pos to battery of jump vehicle then to bolt on motor of jump vehicle. ....
Having a large number of them here- I can agree with you on the not wanting to use that small "jump" plate in fuse box. But i have boosted them in -20°c from that plate.... best is to connect and let car sit with jump car running for 4 or 5 min then start dead car... battery will have taken enough of a jump that with the cables still on it will fire right up. Just tell the person to go for a 30 or more min drive with nothing turned on.
Jthetowtruckguy1, thanks for you sharing your knowledge, the little positive jumper port's backside is covered with plastic and so you will literally be jumping a car with only two or three teeth of you the jumper cables. Cheers
Yup.... thats why I said to let car take a charge for while before starting. . I usually pop cables on then go back in truck and write invoice for job.... then that is usually about 3-5 min.... then its an easy start.... those small motors don't take much to crank over