DIY 2x range booster battery for electric scooter or e-bike
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- Опубліковано 20 вер 2024
- Learn how to make your own battery with my book DIY Lithium Batteries: amzn.to/2jbxvzS or check out my second book - The Ultimate DIY Ebike Guide: amzn.to/2BGx4Fn
This battery building kit from: www.vruzend.com
The gear I use for my videos:
Camera - Nikon D5300: amzn.to/2DcuVlM
Lens - Tamron 18mm - 270mm: amzn.to/2qLZlsG
Thermal camera for iPhone/Android: amzn.to/2FikWvW
Drone for "follow me" filming: amzn.to/2UFOds5
Camera for invisible selfie stick shots: amzn.to/2Vb9D0r
Here are some of the products I use:
Bafang BBS01 kit: goo.gl/VxhTHu
Bafang BBS02 kit: goo.gl/9cfWfk
Bafang BBSHD kit: goo.gl/dWX2pm
250W complete e-bike kit: goo.gl/7HSQye
500W complete e-bike kit: goo.gl/xWPgtj
1,000W complete e-bike kit: goo.gl/UdUWK9
36V 13Ah Hailong (shark) battery: goo.gl/K9PsuC
48V 15 Ah triangle battery: goo.gl/6zjneY
52V 17.5 Ah triangle battery: goo.gl/e1E8ug
All ebike batteries: goo.gl/7pAi9Z
All 18650 cells: goo.gl/hYWnwU
Xiaomi QiCycle: goo.gl/Ys6JTZ
500 Wh folding e-bike: goo.gl/UWgoJU
Weird suspension folding e-bike: goo.gl/T9xBqN
Segway ES2 scooter (AliExpress): goo.gl/32szNF
Segway ES2 scooter (Gearbest): goo.gl/25URD9
Xiaomi M365 scooter: goo.gl/iEQWJw
100W Flexible solar panel: goo.gl/jK1CSB
100W Folding solar panel: goo.gl/WnHmgY
Cycle Analyst: goo.gl/RsmE3N
The parts that I use for building batteries:
18650 cells: goo.gl/aEabAQ
18650 positive insulating washer: goo.gl/HBVOuc
Nickel strip: goo.gl/VIrNQq
Spot welder: goo.gl/KN3Uaw
BMSs: goo.gl/S6gSQx
Silicone wire: goo.gl/xmpbKD
Black 18650 cell spacers: goo.gl/hQxWF6
Vruzend cell spacers: goo.gl/5ReLqA
Large heat shrink tubing: goo.gl/6v1ow9
Small heat shrink tubing: goo.gl/OU3Z6u
Foam sheet for protecting battery: goo.gl/5e71tE
Kapton tape: goo.gl/D6BT57
Chargers: goo.gl/js0T0V
**Question response book giveaway rules**
When you guys asks questions in the comments of my videos, I'll try to answer them. If there are questions that I think would make a good video response, I'll choose them to do a longer segment. If I choose your question for a video response, you'll win a copy of my book The Ultimate DIY Ebike Guide (the paperback or the ebook), or my book DIY Lithium Batteries.
Here are some things that UA-cam makes me say: This contest is not sponsored by UA-cam and UA-cam isn't affiliated with it. I'm supposed to provide a link to the community guidelines for UA-cam (www.youtube.com.... UA-cam is not a sponsor of this "contest" and by participating, you are releasing UA-cam from any potential liability, whatever that might be. Privacy notice: I won't steal your info. If you do win, you can choose to send me your address so I can mail you a paperback copy of the book (or some other prize if that changes) or you can send me an email address and I'll send you a copy of the ebook. I will do everything in my power to immediately forget your personal information afterwards.
Outro Music: BenSounds
For years, Micah has helped to make it more possible financially and technically for folks to acquire for themselves, small vehicle electric transportation. And he endeavors to bring more useful information and products needed in the future as well. The competition does not like that. He is really a nice fellow that loves people and wants to help others, and he does spend the time and effort to do so. A+
A whole swat team invaded my house because my neighbor thought I was building a bomb in my garage...
Loool
Lmao that’s hella funny
Really?
It's true, I was the neighbor
🤣 🤣😂
WARNING
Most scooters do not allow operation while something is plugged into the charge port. For safety reasons obviously. Also, the charge port is meant for just that, charging. It has specs that are totally different than the operating mechanism of the scooter which is powered by the battery. Look at your charging adapter and read the specs on it. For Gotrax it’s 42v 1.5amp, you can’t just stick homemade battery pack of 37v 7amp into the charge port and say away we go! IT DOESN’T WORK THAT WAY AND IS VERY DANGEROUS!!!!
For most scooters charge port the best you can do is build a portable charger that you use to RECHARGE the scooter battery when it’s low. The same build principles will apply as shown in the video, however, you have to build it with specs intended to take the place of your wall charger for the sole purpose of charging not giving your ride a boost. So when planning you need the voltage on your battery build to exceed what’s stated on the charger, for example if your charger states 42v dc out, then you want your build to output around 47v. Then you have to match the amps, you can reduce the amps on your battery build by using a current limiting resistor across the pos/neg end of you battery. You use ohms law to get the proper resister value for the desired amps, I=v/r where “l” is the amps you want to achieve and “r” is the resistor value needed. So in our Gotrax example you’ll need about a 28 ohm resistor soldered across the total neg/pos end of your battery build on the output connector not the connector you’re using to charge your battery build. This will get you to the 1.5 amps needed for charging and will not damage the components on the other side of the charge port or melt any wiring inside your scooter. The reason you can’t just stick 7 amps into a port that’s only designed to accept 1.5 is obviously the wiring and circuit behind the port may not be rated to accept such a higher amp value. THIS IS HOW FIRES START!!!!
If you’re gonna do this do it right, for the safety of yourself, your family, and your neighbor. Lithium Ion batteries are NOT to played with.
Are you sure?
I was also thinking this. That 250w motor is drawing max 7 amps. Meaning that the extender battery has to provide about 3.5 amps if they are both the same capacity, more if higher. My scooter is the same model as his and the charging port is fused at 3 amps. Idk how he made it work, if...
I read several unclear books about batteries, then I decided to buy yours. Congratulations it is fantastic. Clear. I read it in two days. Now I'll read it again to write down the most important things. thanks a lot
I used a step up voltage converter and two Ryobi One+ 18V batteries in parallel. As the batteries are removable I can charge them both at the same time as the scooter if I have three sockets. The step up converter provides a constant 52.2 volts in to a 54 volt pack at about 3-4 amps. This means the 18 volt batteries are delivering in excess of 10 amps until they are completely drained. The power protection electronics in the batteries shut them down if they overheat or under volt. It’s a few layers of protection but if the batteries die, I just buy a another One+ battery. Do not connect the supplies with more than 1 volt difference unless you like loud bangs. I already have a copy of your book
This is a great project to do considering getting twice as much range. Thank you for the video.
I like your videos a lot. Keep up the great work.
I have the same scooter. Behind the black panel is the controller board. What I did was cut the battery battery wires that lead into the controller and put xt-60 female, then xt-60 male into the controller. I pulled them outside of the black panel. This way to use the built in battery just keep them plugged in. To use the spare battery, I just unplug the built in and plug the spare in. I keep that one in my backpack and it is double the capacity of the original. The difference is this does not send the spare battery's output to charge the built in battery. That is why the range wasn't double. In my case with a 2x spare I have triple the original range.
Thanks for your videos. I enjoy them.
Thank you for this video! I have experience with residential electrical work. Someone in a BMW hit my car and ran from the scene totaling my car. Insurance paid for the accident but it was not enough to get a reliable car without picking up a new car payment that I can't afford. I already eat rice and oatmeal everyday as it is. I commute about 8 miles per day. I bought a new E scooter in December after the insurance payout. Best $500 dollars I have ever spent, literally!! I bought the Hover 1 "Alpha", but everyone seems to have the step down version called the "journey". I get to and from the doctor, a total of about 8 miles in eco mode 6 days a week. Even when it has been 19 degrees fahrenheit, here in Maryland, in the mornings. I definitely thought about adding a battery pack to extend range. I didn't want to open the machine and void the warranty I paid for. Now that I've seen you do the same thing I have been contemplating I think Im am going to give it greenlight and order the batteries and bms this weekend, Thanks again , Joshua ps sorry, I dont usually type much but a proper thank you was due here!
Hi, I hope you re well!! What happened to your project? Did it all work out?
I suppose it would make sense to put a fuse in there too, just in case you ever accidentally connect the booster when the two batteries are not at the same voltage. Anyway, I'm looking for good sources of info on building a 'split pack' where a vehicle does not have a convenient place for a single large battery, so you might want to put multiple smaller batteries. While the basics are obvious (the batteries can be connected in parallel or in series, as if they were a single cell), and some safety concerns are obvious (keeping the same series number when connecting them in parallel, making sure everything can handle the voltage and the amps etc.) but some details are less clear and it seems there are different ways to do it, different ways to solve the problems inherent to this system, and I haven't yet found a good definite place to look for information on that.
Great videos, watching with intense interest and am considering building my own 48V-20Ah battery for second battery on my ebike. keep up the great work
And yet another very informative video. Thanks! PS DIY battery book is a must for anyone wanting to build a battery pack. I've read my copy more than once and learn more each time. Thanks Micah.
I just got the HiBoy S2 scooter and it is great. I love how simple this process is. I have some recovered laptop batteries that I would love to repurpose for this.
hey I just bought the HiBoy S2 also. So you followed his instructions and you get twice the range now?
@@JapRapNipHop420 I haven't actually done the project, I was interested, however, with young children I don't have the time.
Does not work on the hiboy S2. Don't waste your time. I did a video on how I did it. I can not travel about 23-26 miles distance with two batteries :)
Subbed. What a great video! I loved it; From his reasonable pitch for his book, to what he creates in the end, that blew my mind! There's a business opportunity with someone with the basic chops! Including sewing even. Awesome.
Isn't dangerous to use the charge port of the scooter for the parallel battery? In general the wire in the charger port is rated for 5 amps not 30.
U look very genuine ...... even an stranger on the street will trust you..
Thanx for the advice on balancing the battery as well as uneven voltage loads. These are important little nuggets.
Thanks for the time and effort you put into these videos! A video on wire gauges for power wires and battery capacity would be great! I want to build a pack, but worry about burning up the wiring if it supplies too much power :p
There are major errors in this tutorial. He may think he knows what he is doing but following his instructions leads to an installation that can cause a fire. Some of the reasons for the danger have been revealed in the comment section. DO NOT parallel this system through the charge port! No qualified professional would advise you to!
Glad u gave the "before u plug in the spare battery warning" I was waiting for it
Thanks for the instruction. I can't seem to afford anything for myself so I have to build it all. Electric and electric assist is next on the DIY to do list. Can't wait to put it into practice.
Im reviewing this again and I think the way it is described it can damage some internal batteries and even cause death if your not careful LOL
The safe way I think to build a booster for extra range that plugs into the charger, would be a pack exactly to mimic a wall charger. So you build it up 6 volts above your bike or scooter battery voltage and limit the charging amps coming out of the booster pack to maybe 5 amps or 7 amps with a current regulator. You could even just have it a 2amps, but that would take a long time to charge.
When you regulate the current and charge 6volts above the lithium's voltage rating then your booster is acting just like a regular charger and the internal BMS will manage the charging safely and correctly. For example if you have a 36v ebike then you make a 42 volt booster pack and attache a current regulator to the dc out. So in other words your not connecting in parallel, but creating a portable charging system. and the goal of this is not so much to instantly double range for riding continuously, because the safer style of i being just like a charger, would make the charging time slower than the discharging from riding, but it would increase range and work great for the type of riding where you take some brakes and not riding continuously so the charging could catch up with the depletion from riding. For example if you go to school and your bike is parked outside then the bike "re-charges" from any depletion from the booster while it is sitting without an external wall plug.
LifePo4 cells can be damaged by charging too fast, and even explode, that is even why Micah warns in his video the voltage of the two batteries needs to be the same and in the same state of charged if connected parallel. It cannot just connect a dead battery in parallel with a fully charged booster. So it is dangerous if you were to drain your battery from riding and then plug in a fully charged booster directly in parallel because two much current all at once would run through too fast into the lower "deader" battier. EXPLOSION DANGER!!!!. So a current regulator is needed and then you can connect even a 6 volt higher pack with even a lot of watts, as long as you regulate the current going in to the charger it is fine.
Now maybe you can do exactly what this video says exactly with the booster being the same voltage (charging both up fully like in the video) but only if your really know your ebike or scooter really makes the charger port act like a true parallel connection.
If you read carefully all the comments below and answers from Micah to other people questions and compare them all and the video, you will see he has contradictory statements in the video and his comments and might not know what he is talking about for your scooter. He says it both that it is creating a parallel connection sometimes and other times he says it is just acting like a charger. If it is truly parallel it is not at all operating like a charger but simply powering the motor of the ebike at the same time as the internal battery. It might work in the scooter Micah tried it in because in that scooter it is totally a parallel connection.
It is really tempting to do this if your bike or scooter can handle it because everyone sometimes wants more range, but I would suggest to people to research more what kind of connection your charger port utilizes and how it wires through tour particular bms to charge the battery. You need to know if it is parallel and then you need to know how to be very careful, or take the safe route I suggest above and use a current regulator between the booster and the charging port to the internal battery
Thank you for sharing that wealth of information. Was going to try this but what all you mentioned makes sense. I don't think I am going to try this.
And just extra information, many el scooter and el bicycle manufacturer selling extra battery just like this
@@quynhchi148Its probably the case that all e bikes and scooters are not exactly the same in terms of bms and circuitry protection. I would like to understand what kind of BMS the manufacturers that sell extra battery packs use. MY escooter is a popular model and it does not have an extra battery and I am going to take it apart and look at the bms. I want to learn more about BMS's. Of course it can work with some as in the video above, but since the explanation in the video and discussion below have inconsistencies I wonder what the distinctions are in the BMS' that make the difference. In theory if the batteries are not matched a lot of current can flow when they are first connected because they will want to balance with each other. I do a lot of research into boon docking batteries lifepo4 I know there are different types of BMS's. Some of the brands of battery packs are listed in their specs that they can be put in parallel (adding a second battery) or and some are clearly say in their instructions and specs that they cannot. Unlike buying lithium "deep cycle" power storage batteries, when you buy an escooter or ebike these kind of details are often not listed on the battery pack because they do not like people to hack the batteries. In boondocking batteries like people use in rvs and vans they area usually made for some versatility. Will prowse has a great channel on these type of batteries. ua-cam.com/users/errolprowse I would love to extend my ability to travel long distances. It is not hard to build battery packs. Maybe people do not know about this option. If it is safe on most scooters or we had a list of major scooter brands it works on that would be good, If someone else has a better description explaining why this can work with proper care just as described int he video above in terms of bms types or more details, please share. I think we are at the point where people are going to build self made electric motorcycles with Nissan leaf battery packs for long range travel. .
Why rechargable battery cell that doesn't allowed parallel connection? maybe they just be cautious because the cell has too small of the internal current and by parallel it decrease the resistor by n times and it make high current flow when the voltage different is significant?. If that's the case i would do the top balancing and use the current limiter and voltage limiter so it would work just fine. You're right about the balancing, that why i said the voltage must be somewhat the same for the input battery and the scooter battery.
@@quynhchi148 Your right cell internal resistance is something they must make the decision on but also other things. Like Im sure the manufacturers that allow a second battery expansion have a proper plug and proper gauge wires to handle the current where the connection is made between the batteries. High current bikes need very thick wires between the batteries and the motor. If one puts batteries in parallel one needs to use the right gauge connection. (BTW fully charged 1860 cells are 4.2 volts.) So my line of thought is if it is not a biked specked to do this and if it is a very high power bike or scooter say above 1000 watts, that is a lot of current to run through the charging port. Im not sure if BMS can handle the current but I know from my experience doing stuff in my van with high current DC wires get hot and the longer the wires the worse it gets. Some charging ports in rare cases are a few feet from the battery, but even a 3 inch wire if the wrong gauge can melt or act like a fuse. So if one beefs up ones wiring maybe the mod is ok. But also if the plug is not rated for high current the plugs and the plastic around them can melt. Some scooters are 52 or more volts and 30amps. a lot of chargers and ports use like 18 or 16 gauge wires built for charging at 1.5 or 2 amps, maybe 45-150watts depending on the bike charger system. So it depends on the system one has. Also if one runs a ebike at full speed the motor can draw a lot of power running through those tiny wires, even if they do not fail it will create a situation where the battery closer to the motor runs out faster. So it is not that lithium batteries cannot be put in parallel, it is how one does it that makes a difference. It needs to be done in the right way. When I say some battery manufacturers say "not for parallel connection" it is because they did not make the battery wiring and bms strong enough to handle that. A voltage and current regulator can help provide safety but then one would still have an issue if that then makes ones built in battery run out of juice first because its wiring is more direct to the motor and the proper gauge for the current to flow to the motor, but the secondary battery is limited and will discharge much slower. So your ebike will run on decreased current or not run at all if voltage drops when the first battery runs out. I did not think of the wiring and charging port till now before I was just thinking of the BMS, but this issue of wiring gauge and type of plug connecting is a bigger issue for trying this mod bike and scooters with a big current draw. I think one needs to know ones scooter or bike well before trying it.
@EbikeSchool.com Thank you so much for making this video Micah! I owned 2 original GOTRAX GXL scooters one for me and my Girlfriend. The range was really becoming a problem especially if we wanted to commute, take long rides in the country or on Holidays here in the U.K.
After watching your video I was on a quest to build the exact same exact batteries you built for our scooters and with the guidance of this video, few month of making mistakes wiring my connectors incorrectly, shorting 2 chargers and 2 scooter batteries they are finally finished.
I’ve build 2 of the exact same batteries using the V2.1 Vruzend Kits with 3 cells in parallel using Samsung Q30 cells with a capacity of 9 Ah each and man is the scooter even faster than before, it does 22mph all day long now, so fast I wear a helmet as it’s just as fast as my Brompton Bike. If not faster!!
🛴 💨 💨
All credit goes to you Sir, once again thank you for the awesome content! I’ll be posting a video of the finished builds soon for watching for name in the video credits.
How did it hold up?
A true Renaissance man is one who can solder, skate and sew.
Its perplexing how much people use things but don't have any idea how it works or how to fix it. Down to the simplest can openers (or even the can itself). Ever since I can remember I've been taking things apart out of curiosity and fixing things. I would probably go insane if I didn't know how to fix the things around me or how they work lol.
@@brokenwishbone422 WOW WE ALL LOVE AND ADMIRE YOU TELL US MORE ABOUT HOW AMAZING YOU ARE I WOULD LIKE TO HEAR IT MAYBE START YOUR OWN YOUSTUBE CHANNEL AND TELL US HOW AWESOME YOU ARE AND WHY YOU ARE SO AMAZING??
@@brandonstevens1832 wow another fake ass tough guy on the internet.
@@brokenwishbone422 IM NOT BEING FAKE I REALLY WANT TO HEAR ALL ABOUT HOW AWESOME YOU ARE CAN YOU PLEASE SHARE MORE INFORMATION ABOUT CAN OPENERS? i WOULD LIKE TO KNOW HOW IT WORKS. I CANNOT USE A CAN OPENER! IT TAKE SOMEONE REEEEEEL SMORT TO NO THAT 1!
@UC0VTSR-7DahzeAQ5sdOS-uQ YOU ARE INTO CAN OPENERS AND NOW I FIND OUT YOU ARE ALSO INTO HAND TO HAND COMBAT OVER THE YOUSTUBE!!!?? OMG THANK YOU FOR YOUR SERVICE IN THE UNITED STATES PENITENTIARY SYSTEM! YOU SPENT 7 LONG YEARS WITH FELLOW MEN ON THE SAME CLASS! THAT IS NOT EASY! YOU SIR ARE BOTH STUNNING AND BRAVE!
Are you sure this is safe? Matching the voltage is easy but what about capacity and chemistry? Can you safely boost through the charge port? Is that really running parallel? Can you boost a regular lithium battery with a lifepo4 of the same voltage through the charge port? Really? This isn't really running them parallel is it? Thanks!
You make many good points. Matching capacity is not necessary, but matching voltage is. So mixing LifePO4 with "regular" Li-ion is a no-no. I would not use the charge port. It does not have the same wire gauge or connector capacity as a discharge wire and connector. I paralleled mine at the battery power out wires, and I disconnect the external pack to charge them separately. It charges twice as fast that way. It was easy to run a couple of wires out to an XT connector. I used a pre-made battery pack because it is a lot easier.
Your videos have helped me make my own electric scooter. Thank you for making them.
I just purchased a ebike battery and came across your video looking for tips on wiring them up in parallel. I had never considered the charger port.
Like the sewing - pretty and well protected! 3d printing is also an option. Not too hard to find printers today that can easily print 30 cm langth, and in strong Abs or petg which can also be water resistant if you feel adventurous
Good video. Excellent way to double range with limited space.
Thanks, and I liked that you showed a non welding way, to build the pack.
welding is a lot safer tho, i would suggest soldiering the connectors after to prevent loosing from vibration during riding! Or just by an inexpensive battery pack on ebay.
I have an ebike and I have no need for another battery. Until I watched this video. I'm now subscribing.
Great video as always. Made 3 5s9p batteries with the help of your videos.
How does the charge port handle a battery connected directly to it? If I look at the wires behind the charge port, they are way thinner than the cables connecting directly to the original battery. Will the extra battery load work with the charge port or is there risk of faster wear in the long term? Maybe swapping out the charge port wires to thicker gauge wire would be a good idea?
It is so informative on my project I'm trying to make a back up battery for my ham radio and scooter.
How do you limit the output of the booster pack to 2 amp at 42v? Most barrel connectors are low power. You might be able to do 3 amps but any more than that you will melt the connectors. I have been wanting to do this for a long time but the amount of power the battery can output concerns me alot.
I have the same problem. I would like to limit the booster pack to 2amp
well, i got the book and I know I'm in over my 70+ old mind. but my #1 question is what class and how large of a fire exchanger is needed to ensure a few remains?
Very nice demonstration of building your own battery! I'm making my own 48v lead acid setup and just completed the battery box today. I will be following this same method for the purpose of the Maiden Ride, It will be helpful to have this backup power when needed, switched, or just as you have demonstrated! Send me your book Maaa'n! I promise Im gonna need it!
I am glad you made this video I can make batterys for my nabors thanks
Wanted to fyi you of the topic on the WATT numbers on motors and what to look for of certain companies that advertise of what they have to sell. I came across a sale on title of 350/500/750 watt e bike and remember what you mentioned and I notice this as the Bike is all the same with the 500 and 750 having bigger tires than the 350 including the battery for each one. Well, I know enough now I went ahead and got the 350 watt GEARED Bike and I just swapped the battery intended for 350 and got the one separate of same specs of the 500 and 750 they were selling. I basically got the 750 without their fatter tires and higher amp battery, lol. Im going 24mph on the 350 daily of new battery of same amps as the 500 and 750. I saved 300$ of getting the 350 watt which actually is same motor for the higher priced ones of same model. Its really a 1000 watt motor as I checked the wattage amps when I juice up throttle all up it reads 1000 to 1200 and it drops to NOMINAL OF 500 to 750watts once on cruise control and dips down to 50 when I use PAS at 24mph.
I really needed this info. Great job! I'll watch for book - ! Thanks.
OMG it was so nice to see someone on UA-cam with videos that were not of some janky ghetto rigged up crap that they had put together. I learned so much and I definitely LIKED and SUBSCRIBED.
new here. super stoked for common sense sound advice. Thank you
This is a fascinating channel, I've been itching to build an ebike for a while, now!
Wow fantastic, down the road maybe show this process for a ebikes many are only good for 20 miles ,great video thanks
I can't wait to start mine. Your books look to be very interesting..
This is definitely rocket science I need that book ASAP !
Awesome video. Thanks for the great info; i am motivated to add another battery to my scooter to increase range; was a little afraid, but i now understand what's needed. Thanks
I used a 36v hoverboard battery because I don't trust myself making batteries but other than that very helpful tutorial
Thank you Micah, just what i asked previously to double distance on my Orbea Gain. Bought your solar panels book. Very informative.
That's so cool and I'll probably buy your book mate just broke ATM but thanks for the information 😊
Also make sure the c rates of both batteries are the same, unless theres a third party bms connected to both batteries
Cool video. It seemed pretty simple until about 4:00 in. That's okay. I'm slow. I still learned a lot anyway. Thanks!
Awesome Micah. The sewed bag is a nice touch.
Hey Mika cuz I have a GoTrax GXL v2 also & literally have 2 of there battery packs that go into the frame. I was just wondering if u could just let me kno the easiest way I can wire those 2 together in parallel so I can double my capacity on the scooter pls🙏🏼🙏🏼... I was just bringing them both fully charged with me but after watching ur video/s Im still confused on Doin it with these types of batterys...thanks alot & love the vids!
I swear I thought it was gonna explode even he plugged it in 🤣🤣🤣great video bro ill definitely get a few of your books soon 🔥🔥🔥
I Loved this so much. Not because I just want a book.
I bought the book... incredible
As always, an excellent instructional video. Looking forward to your next project.
I'm going to build my own scooter. I think they are high as hell. What is the general cost on a battery pack like you made. And do you think it would be better to use bigger batteries with a similar system?
Awesome video. I've been wondering whether or not to build/buy a second battery for the eFat bike. Perhaps a booster pack is the way to go.
As always, thanks for sharing 👍👍👍
Newbie here,I enjoy a lot of your tutorial of lithium battery hopefully I can purchase your book.bit thousand miles from your end.im satisfied with your video but I also need the book 😜 lord give me that lovely book.thanks bro
Ohhh. You forgot to take your watch off.... I’m just giving you a hard time. I own your book and want to thank you for all your hard work on ebikes and batterys
This is a great video. Im trying to build a range extender for my 750W Bafang Mid Drive E-Bike
Great stuff!! Thank you for passing on your knowledge and wisdom. I look forward to putting this to use on my new scooter. I also have a bicycle I am hoping to convert to an while since I will be checking out what you have to teach me on that subject seeing as you mention this at the end of this clip. Again thanks so much for passing on your knowledge and wisdom on these topics. Your new student, Brian;-p
I started watching because of the electric motorcycle videos, but you are drawing me into the e world. Great project. Would love your book and more videos on the bike you bought.
Warning!! These Electric bikes and motorcycles are addictive! I started two years ago and have built several electric vehicles including a solar electric recumbent trike that hauls me and my two teenagers around, and we have done trips of over 100 miles with it and have gotten great results running only on Sunshine! Metalman69201@gmail.com if you'd like a picture of the solar electric trike.
Ser I want to learn about making my own battery in my gotrax so your vedio inspired me keep up ser good bless
Thanks Micah, I always learn a lot from your well presented videos!
I world love to have that extended range on my scooter! Thanks for that video..
Your videos are so good and impressive to understand and learn from this videos
How cool! .. i stumbled upon your channel looking for a way to use solar to charge my hover round mobility scooter to possibly have a way to add or recharge my scooter for longer travel distance. I thought your video was very informetive. Ty
I like the Singer sewing machine, very handy to have around.
Yea it's a nice tool to have!
Nice it’s so cool..then easy to make DIY battery..thank you..very much
I think you just put a couple grand back in my pocket before I spent it 🤔......nice work and quite a gem
Alright, I finally got around to doing this and it was a fail. The person making the video is WRONG. The charge port is NOT spliced in parallel into the battery. It goes to very thin wires that are welded to the circuit board. So within about 2 miles, I fried that part of the circuit board and can no longer directly charge the scooter battery. I went ahead and removed the charge wires and spliced in two thick wires directly into the hot and ground wires coming off the scooter battery (which was difficult because those wires are only about 1.5-2" long) to the new battery. This seems to be working fine and I can charge my extra battery while it is spliced into the scooter battery and they both charge up equally and my backup battery's power management tells the charger when to stop charging (if I bypass my backup battery, it seems to want to overcharge the scooter battery now). Anyway, this was kind of a headache and I regret trying to do this. An alternative that is much safer to your scooter would be to buy a small 100W "solar generator" (what they call them, but they are just a lithium battery attached to an inverter that "can" be charged with a solar panel, but also with a normal 120V outlet) and mount that to the scooter and just plug in the charger and have that running while you ride. That keeps the amperage at a safe level that you know won't damage the charge circuit (I believe it is 1.5 amps - you might be able to get away with a slightly stronger charger, like a 2 amp and eek out a little more distance). If you ride hard, it will give you about another 2 miles. If you are riding slower or waiting a lot at stoplights, it will go much further. This is what I was doing before I tried this upgrade. On the plus side, my scooter will now go about 20 miles (I wired in a 20Ah battery), up from about 6 miles. It is just not a very good setup and feels pretty sketchy to me. I bought a new handle bars that have all the electronics that were ruined by this hack in case I want to switch back. Right now, it only cost $59.
This changed my view...it gonna be handy for me. Thanks bro
My unicycle now goes twice as far, thanks!
Great video. I have the Go Trax Rival and read some really bad reviews . And of course no customer service line ... Just email responses in 72 hours Asking for this or that. Then when you respond 72 more hours ( each time ) on response and a different rep you have to explain the whole issue and history of problem with each time per many many reviews. I've had no issues yet as in 2 days of ownership and have 30 days to return if I am not satisfied.
I like the scooter but it seems Go Trax Customer Service is not user friendly and the longevity of the batteries installed and the charger wind up being very short lived. Ninebot and Segway have the best and longest lasting scooters with their lowest priced model priced at $439.00 plus a $20 off Coupon. Just curious on this battery system.
There are 3 dislikes and 3 persons who don't deserve to watch your video. Sincerely this video was awesome!!
Glad to see more videos are coming our way. :)
That's a very nice looking build! Thanks for the video.
I've been looking in to ebike's and batteries. And I see you name and gear in the top 5. Now that I've seen some of your videos. I'm more determine then ever. And I think it's better to build your own if possible. I tend to take so much more pride in the work I put in to making something. But yet I'm not the best at so I could use some help. Lol 😂😆
I live ebikes I got my own welder just to build my own electric vehicle. ?) !!!!!!! 🔋🤑😇🤠
hello, i been seeing some divvies online claim that you can connect 2 batteries it in parallels and even have mix voltage. like 48v and 52v . datex2 is one of that devices. can you shed some light on them? and how they doing it ? thank you
Does anyone know how he got the cable to connect the battery to the scooter
i purchased a 36v 6a replacement battery. may i just plug this battery into the charger port on my kugoo electric scooter once i have charged both batteries to 100%. like you did on this video with your custom built battery pack. thank you so much for all you teach us. hal blaine
Great video! I would like to try this with my 48v ebike which came with only a 10a battery. I have subscribed,
You need to mount the battery pack much lower as you have raised the centre of gravity of the scooter.
Half a kilo will not make a difference
@@easternwind4435 It will
@@easternwind4435 It does, especially on a scooter. The slightest weight can mess with handling.
Can I use the booster as a portable charger? When my scooter battery is down, can I plug in the booster to charging port and leave my scooter aside while it is charging? Will this cause any issues to my battery?
According to Micah's instructions, you should only connect a booster battery to the main battery when the charge levels are the same. If you try to connect a booster battery after the main battery is low that might be dangerous, with too much power going from the booster battery to the main battery at once. As I understand it, you want the charge levels to be the same so the power only trickles from the booster battery to the main battery as needed when the main battery is in use and slowly getting used and discharged by the vehicle motor.
This vid is just what I needed cause my jetson electric scooter has a terrible battery life and partially since I’m a heavier than I should be to ride it
I know this is an old video but I hope I have the chance at winning a book that would be great as I am on a venture to learn how to build lithium batteries on my own. To power my mini scooter projects
Hey Micha, I was wondering how would I go about wiring 2 of the exact same Gotrax 36V stem batteries for the GXLV2 scooter in parallel? I'm a lil confused cuz of the 3 pin triangle output. Thanks buddy & great vids as always
I always enjoy your videos. I’ve read both of your DIY solar and Battery books and they are the best. You were recommended by Jehu Garcia. Keep up the good work.
Nice upgrade
Sewing skills show-off : ) The only concern I have at the moment is whether a vehicle motor is rated for a max duration continuous use that could be damaged by excessively extending if you have someone the size of a small truck on an ebike rather than a waver-thin child..
Stupid question: Why not have the extra battery around and switch them when the first one is depleted?
Great idea ! I think I'll have to try it soon. Thanks as always for the information.
I kinda stumbled onto your videos and I'm really impressed! Would love to get a copy of the battery building book.
Sorry for the long break between videos, everyone. I’m already almost done with my next video which is a really cool project I just started!
Right angle male , that is going to break off
I dont understand why they mount the key for battery like that too
It's an accident waiting to happen
Kool video tho ! Thumbs up
EbikeSchool.com yeahhh I totally understand long break between videos hahahaa not easy to keep up recording and editing in a weekly basis... you’re doing it pretty well, much better than me hahaa =]
I see in the video you used a DIY Arduino based spot welder and you also have an Aliexpress spot welder linked in the video description. Which do you prefer?
@@nikon626 actually, he didn't use a spot welder. he used the Vruzend kit.
@@ThanosSustainable 2:05
good video
So you made a battery that is charging the main battery of the scooter while the main battery is discharging? Thats how i understood it. I think it wuld be more efficient when you plug the 2 batteries in parallel just like you did to get double the capacity but connecting the new big battery to the whole system. >That way you would get more efficiency out of it since you wouldnt loose energy to the charging of the battery. Having 2 seperate batteries isnt that optimal. since you will always have a little difference in Voltage and since current flows to the lower potential (Lower voltage), that means that one battery will try to charge the lower battery while also putting power on the system so you can drive ofcource. But that also means, that if the battery has charged the other battery to that point that itself has a lower voltage due to chaging the first one, the other one will start to charge it since the current flows to the lower potential. It will go back and forth until both batteries are dead. There will be a huge energy loss due to thermal heating of the battery because it is charging the other one and the life span will decrease due to the constant charging and discharging while putting out power to the scooter itself. and that means that you will get lesser range than you could have had if you would plug in that battery in parallel to the whole system or removin the original battery and just doing a new bigger battery pack that will allow you to drive double the range and even more than you already have achieved, because the battery will now fous its power on the scooter and not on charging the other battery. BUT AGAIN! i didnt understand if you have done it or no XD maybe you did the thing i just explained and i got it all wrong
I'm not sure how it is wired, but it seems like if it is wired in parallel like he said it would act like you just had a much bigger single battery pack, wouldn't it? The battery packs themselves are just multiple groupings in series to get to the desired voltage wired in parallel with each other (ie, if the factory battery is 2 groups of 10 batteries wired in series that are wired together in parallel, then adding 2 more groups also in parallel with the first 2 shouldn't be any different than what is already going on in the factory battery pack). Again, I'm making assumptions that the person who made this video is correct and the charge port is wired in parallel with the battery.
Nice to have a diy battery. I enjoy watching
I always love these battery videos.