HOW TO REVIVE DEAD 6V, 12V BATTERIES THAT WON'T CHARGE
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- Опубліковано 1 жов 2024
- This video is going over step by step how to revive a dead battery that wont charge using the provided charger.
Kids ride on toys usually have sealed lead acid batteries (SLA)
6 volt and 12 volt batteries can both be done using this method, just match the voltage of the battery you are reviving.
6 volts to 6 volts and 12 volts to 12 volts.
Smart chargers have built in programmes that refuse to charge batteries with voltage that's too low, so a little bit of a hack to trick the charger into playing ball is needed.
If this helps in any way, please consider a thumbs up or leave a comment.
Thanks for stopping in and be sure to check my playlists, I have something for everyone, budget tool reviews, homemade weaponry, 3d printing, and lots more.
Do not attempt to try this at home, unless you are aware of the necessary precautions that need to be taken.
very hazardous chemicals and dangerous reactions.
For educational purposes only. - Розваги
Of the many videos watched, this one logically explains how to safely revive, and *HOW/WHY* it works. Brilliant. Simple and methodic. 👏🏻💛
Went through the procedure with two sla batteries today. They showed 12.5v before topping up. Both took quite a lot of water. I've got them on the trickle charger now and will put them to work in a day or two. Really appreciate your clear, straightforward demo - thanks!
How'd it do? :)
It's been a while now, but as I recall it didn't work for me.@@RogerPack
I had got a booster jump pack that had broken so I took the battery to find out it was completely dead. I found your video and was blown away. I didn't have any distilled water but by the grace of God it is raining here in Pennsylvania so I went out and got a cup of rain water and followed your instructions. I could not believe it worked. This battery sat after taking it out of the pack for about 2 yrs. Now it's taking a charge. Unbelievable!!!! Thank you so much!!!!
Mmm I have one of those from harbors freight and after first jump battery is completely gone. Mean it charge but deplete rights away. Was that the same issue? Cause I’m thinking of doing this to that jump start battery pack now lol
@@Oneklickmediathat's the problem this should fix. You could also buy battery acid at a local parts store for 10 bucks and carefully drain the old acid (there won't be much) then top them off with the new. In my opinion the acid is a better option but I'm far from an expert.
Thanks for sharing buddy... I'm a electrician have been in the trade for over 24 years and you did a good job explaining to the masses ... thanks
I appreciate that very much, there's nothing like a little pat on the back
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@@oraclescave
Appreciate for the video
I want to ask if using Purified water not distilled will cause any problem?
I used it to fill the battery thinking it's the same as distilled 😭
@Rofl it's not the best for the battery but it will still work, leave the cells open while charging back up so it can vent any bubbles.
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@@oraclescave thank you very much
Have followed your video to the letter, after the failure of a ride on mower battery, and can report that it is now working perfectly. If I could I would buy you a beer and say thank you personally Many thanks
The right thing to do is to like the video and subscribe to his channel. This helps them get paid eventually. People make millions off these videos after being monetized. I can only imagine.
I'll stick with my dumb charger. It never complains. Thanks for the heads up on how finicky smart chargers are.
When it burns out, just refuse to replace it with one that says "reverse polarity protected" which is a phrase that means it will not charge a battery unless it almost doesn't need charging.
In these sealed batteries the electrolyte is supposed to be completely absorbed by the gel in the separator, so the fact there is no liquid is normal. But at the same time it is indeed the common failure mode for these to loose the water from the electrolyte over time, so they do need refill. But problem is, it is difficult to judge the correct amount, you never know how much of water is actually missing.
And to get the water really back into the gel where it will actually work needs time, so not-as-smart trickle charger left on it for a week or so will be just enough to charge the electrodes along the water diffusing back in.
That's something else to try, thanks
Bought an electric scooter with very bad batteries and has just been collecting dust for the past 2 years....thank you so much for sharing this.
Worth the whole thing if you never even want a battery just for , "Bob's your Auntie" !!!
I worked in Gallaghers Service department for 12 years from 1978 - we used similar batteries (completely closed) on solar units. These batteries would go high resistance so could not be charged by normal means... what we did was have a 2uF or 4uf 250VAC capacitor in series with mains, my case 250 VAC onto the battery - even a couple of hours would bring them back.
Smart chargers suck. Totally stupid programed. I had a 6/12 charger. Trying to charge a 12v battery at 7.2v and it told me it was a fully charged 6v. Have to put a 12v trickle charger on it for a day to get the voltage high enough the smart charger will think its 12v battery and start charging. I can't find any old chargers on Ebay. Pain in the bum.
Just hook up a fully charged battery in parallel (a few seconds at a time) with smart charger, until the charger is fooled into keep charging.
I was actually looking for a way to revive my old batteries awhile back and now I came across your video. Awesome explanation on what to do my friend. Thanks for sharing.
Thank you... i was 1 click away from buying a new one.
Couldnt get charged. i used a second battery for 30 minutes to get the faulty back to 11v and now the charger is working.
You saved me 70 euro.
I'm reviving the batt out an old portable car charger and EVERYTHING you've said was spot on down to the dimples in the rubber caps! Got it on a 2 amp trickle charge now (for probably over night). Hope it works.
How'd it work I'm doing the same thing
Did it work?
Great presentation my friend. This is going to help me revive a number of scooter and UPS batteries. I did not know they were serviceable.
Thanks, i will try this over the weekend when i have time. I have a few dead sealed batteries i would like to try and revive. Greetings from sunny Jamaica.
Very good video. No bullshit just common sense. Well done !
I've been using this style batter 3 for about 20 years. Sent more than I can count off for recycling. I never realized how easy they would be to open up.
Hook the good battery up to the bad battery to get the voltage up and hook your charger up to the good battery. That way the bad battery is pulling a charge from the good battery and the good battery is pulling a charge from the charger this eliminates the step of hooking up the jump start.
Yes but the idea of the video was to show someone who only had one battery, that they can link to something else with 12 volt, like a car or motorbike with jumper cables, just to trick the charger into working.
When I first used this charger on a 12v battery I had that issue with no other 12v spare battery and was unable to charge the battery, that's why I made the video the way I did.
Its quick and simple for people who may not have tried anything like this before, your way would work, but it's slightly more complicated and depends on having a spare good battery.
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@@oraclescave do you have any suggestions for folks that don’t have car battery chargers after you insert the water? Your diagnosis looks spot on for my son’s toy car 12v battery
tyvm idk how many batts ive tossed over the years
You're welcome Dac, I hope it helps next time you have a battery issue.
Thanks
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Hi, long time no see.. I remember my uncle showing me this trick with rain water when I was in my teens. Great tip, hope you are well pal,
Do u still make the coin rings?
I'm still learning how to make jewellery, that silver bar I won on your channel really helped me out alot man 🙏
You can thank ambulance chasing attorneys with bedwetter clients that sue manufacturers that made real chargers. Now any little princess numbskull can play with batteries and be "safe". And we're stuck doing a work-around.
12vlt out a pc backup
thought the battery was gone 🤔 until i watched this & rechecked water levels Yeh Dry as -
put back in pc powerbackup test if it recharges .
I am so grateful and fortunate I came across your video. There are other people that wont pass on the same information without some kind of monetary reward as such. Thank you
No worries at all, I have loads of big money saving videos that help people keep that cash in their pocket, from changing car brakes, to rebuilding motorbike engines and lots of other things.
I like helping people, but I slso like it when people come back and let me know it helped, so thank you very much Dontae, people like you is what makes a day go good.
Much appreciated buddy
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@@oraclescave , Thankyou. I will certainly try this
. I have a 8.25kva generator, that battery has died and I have looked all over the internet for a new one and couldn't, so i will give this a go. Let you know how it goes, Cheers. Lina
It is not all that you can do to revive the old dead battery. How about checking the density of the electrolite after filling the distiled water to the cells? Density should be 1,29 +-0,01 g/cm^3. Density could be checked by an aerometer. If battery is dead the density is close to 1g/cm^3. Battery have to be charged with the voltage 2,7-2,8V/cell until density will stop to rise. But if the density of the electrolite is close to 1g/cm^3 the battery will not take the charge. So you have to add a sulphuric acid (H2SO4) to electrolite to rise the density to around 1,15g/cm^3 for battery to take charge. Then the battery has to be charged with the voltage 2,7-2,8V/cell until density will stop to rise. Also it is very important to check that the density woul not rise more than the normal 1,30g/cm^3 for a long period of time. If it rises, you can suck some electrolite out of the battery and add the distilled water to lower the density. At the end you have to get:
1. Charging with the voltage 2,7-2,8V/cell no longer rises the density of elecrolite.
2. Density of electrolite is equal on all cells to 1,29 +-0,01 g/cm^3.
3. Charged battery at steady state shoul show the voltage around 2,26V/cell.
After reviving the battery it can be charged with the „normal” automatic smart (dumb) charger.
Concerning Smart (Dumb) chargers. It is not very difficult to make some changes to it, to make a switch auto/manual. Than in manual state it just puts out the voltage as a power sourse.
What a lifesaver!!!! Should have watched this before ordering new ones. 15 minutes was definitely worth 150$. You my friend are the best.
Amazing Howto Video from you, ! Great walk through, in one word: quality content 💯. While watching I worked on my dead 12V Lead Battery, it's now charging. Thanks Oracle's Cave for sharing your knowledge 🙏
I got my son of Maserati Power Wheel it cuts on but he can't drive it and the sounds not playing could you help me?
We had it since march of 2021
Lead acid battery do not come back, they may show a high voltage even 13 volts under load voltage drops like a rock
Yes they do, or you wouldn't be able to purchase battery refill packs of electrolytes.
Its only acid and water.
I wish people would think or actually know before telling me whats correct.
The voltage drops because it can't hold a large charge with just water and no electrolytes, this is why you desulphate or re-electrolyte the cells.
So if none of your batteries are coming back, my advice would be, start treating your wife right or she might not come back either.
@@oraclescave I'm with you on this. I've brought back over 12 batteries like this. They only last 1\2 as long as new ones but damn sure work again. I had to charge and quick drain several times before it held a good charge.
@@travissimpler2573 fresh acid refill is needed to bring back to brand new power.
Very cheap, but not a very nice chemical to have laying around.
But if you are doing battery refresh, a little acid is like steroids for batteries lol
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May I ask what acid you would use? Thanks
Thanks for the video! Helped revive my battery!
Just one note about replacing the rubber caps then charging. People may not be replacing the rubber caps until after the battery is charged due to gas build up during charging.
I put the rubber caps and the plastic cover on the battery after adding water then I charged the battery. During the charging two of the rubber caps and the plastic cover shot up in the air due to the gas build up in the battery!
Yes it absolutely should be charged with no caps, I just think its funny watching them get shot all over the place, lol
@@oraclescave Hahhaha, yes I agree! 👍
Wish I would've found this a couple years ago.
Yes, I also wished I had known about it years before I did, awesome hack.
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@@oraclescave is it possible to charge the batteries with a battery tender. I can't find the right charging plug for my powertrane bladeZ.
Now all we need to do is find out about the hack Bidens used to get away with their criminal activity to not be worried about it. N then there's our wives. Time travel is where it's at.
Just curious; what about connecting a newer more healthy battery in parallel with the older battery being revived as a method of tricking the smart charger?
Yes that would also work absolutely fine
OC. It worked like a charm. Once I got to the cell openings and started to inject the distilled water, I realized just how "thirsty" they were. Note to all: use the syringe. If you don't, it will take a long time to fill the cells because you will be constantly waiting for air bubbles to burp. I attached a wall wart with 14 volts, 800mAmps. At first (I put it through an ammeter) there was very little (current) draw. Then it picked up. It was a few hours but my battery was not used a lot, just old. It really took off and got to the point where my (not so smart) battery charger started to give the yellow LED. (Fast charge). Power Sonic wall wart style. I am letting it "rest". I am confident it will come back full force within a day. Thank You for your video.
I play bass on the street and used YUASA 12v SLA batteries for years. Use to be (back in 2001-2003) at Maplins would cost 25 quid brand new. However, behind the Preston Road branch in Brighton there is a scrap yard. Now they had a massive collection of old SLA batteries that were used as backup power for fire and security alarms (like for banks) that were still perfect and sold for 50p. It was stipulated in the insurance that they had to be replaced every 5 years even if they were never used. This was great, I didn't even need to buy a charger. I used them to power a 25 watt car amp, had a guitar fx (Zoom GFX 707) as a pre-amp and just a speaker box. The Zoom pedal runs on 4 AAs. Thanks for the vid, never thought of opening one, I thought there might be some very dangerous caustic crap in there. Anyway, try a scrap yard if your looking for a simpler solution.
I'm so happy for this video. I left my kids ride along uncharged through the winter.
Fill it up with DISTILLED water..
Add a little Epsom salt then wait..
The next day it will charge again 👍
Why the Epsom salt? What does it do?
@@imheyns1514 Naturally water is an insulator. So as is it will act as a resistor. you add epsom salt to the distilled water to make the water conductive. In doing so you make a sort of "electrolyte" that allows current to flow through and even hold a charge. hence using the mixture in a battery.
@@b-rad7708 Thank you! That makes sense now.
Can I jump it with my car's battery and jumper cables if I don't have one of those portable jumper boxes?
Kind of yes, if you just link the batteries with leads for a few minutes it should be fine.
I'm not sure if it would be wise to do it with the engine running as the alternator will be charging at about 14volts.
But yes, just linking the batteries together for a few moments will boost your battery enough to get the voltage moving.
Remember to run the car afterwards just to pick the car battery voltage back up, it might lose a tiny bit of power
@@oraclescave Thank u very much my friend! And I was actually wondering about that very same question regarding whether or not the engine should be on or off. I'm glad I waited because my thinking was that I didn't want to drain the car battery if it wasn't on when I did it. While I was distilling some water in my kitchen for the dead battery, I connected the power wheel to an 18v Milwaukee drill battery lol. It was the first time I was able to see it power up, made my day. Thanks again, your video was PERFECT!👌🏼
@@hcic9860 you are very welcome buddy, I'm glad it got you sorted out, nothing beats a free fix.
And I appreciate you for coming back to comment to let me know.
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You didnt turn it on. Theres a switch on that jump starter
That switch is just to turn a light on, the jump starter is always active, that's why the leads hang up on each side, it would short out if they touched, there is no way to turn power off to the jump leads.
Thanks, I am going to give this a go on my mobility cart Just so you know I have an old 230v to 18-volt ac transformer and connected the output to a bridge rectifier 20 amp type put that on a heatsink with fan and connected it to my 12 volts 12 amp cart battery both in parallel and run it for 2 hours and toped up the cells as needed and watched the output clime from 8 volts to 14.20 volts then let them rest as they were getting a bit hot after the 2 hours had passed I was looking at a resting voltage of 13.08 volts on both cells now I have to go back to the smart charger and will load both batteries to see how it went!! 16-06-21 if it all works it could save me £60.00 so thanks Bob in the UK
You might have to run the battery down and cycle again, maybe a couple of times.
But they should get back up and running again.
Let me know how it goes, it's always good to help someone with zero cost attached 👍👍👍
Great video, trying it now on my two batteries. The plastic top that you popped off at the beginning. How do you get it back on? Can I just put a couple pieces of tape
Well this all depends on the condition of the the battery plates. If the battery was well used, you can bet the plates are partially eaten away from the sulfide and will NOT take a full charge. I have only been successful with about 5% of the batteries I tried this with. If you apply to much amperage to the small batteries, you will blow the caps right off these.
I used this along with another tutorial about how to accessing the battery. On adding distilled water in the cells (didn't really need it - caps were vacuum sucked downward, though I add a few drops) and jump start a battery (wound up not needing it) that wouldn't charge / play. I was surprised when I took a voltage reading and it was at 11.8 (12 V is the rating). So I reconnected everything without charging it. Come to find out, it played on battery mode (had been cutting off after about 5-10 seconds. Did disconnecting it reset something? Perhaps that was all it needed! Thanks everyone!
How long will it take to change back??
This actually worked, took a few tries to get the water to soak down into the battery holes but after i filled em i shook it and i could hear the water inside. We had 2 of them that we were about to throw away and get a new one and now they both work again. Its hard to say how well they work compared to new but they work way longer then they were. The kids thought we bought new batteries
Would I be able to use pureified water?
Yes, all water will actually work, but normal water has minerals in it, this will cause issues and corrosion on the lead cells, purified, distilled or deionized is fine.
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Thank you so much!
I was able to revive a (fairly new) 6v Lead Acid Battery for my grandson's ride on car. They just don't make things like they used to!
I just received 2 of these, old lead acid batteries, along with some OLD Ham Radio gear. I didn't know you could open & service them, like a larger 12V battery. Thanks, for the info., as it will come in handy real soon.
You are very welcome Chris, and thanks for commenting to let me know, I appreciate that very much.
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Is that rain hitting of your shed roof in the background Darren?
Yes, I was waiting for the rain to go off for hours, but it just wouldn't stop.
Typical everytime I try to make a video, if it's not rain it's bloody ice cream Van's lol
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HOWdy O;s-C, ...
Thanks
COOP
the WiSeNhEiMeR from Richmond, INDIANA, USA ...
...
Hello need help asap
So i was able to revive one of my 2 SLA battery (12v 150ah). The other has a problem because one of the 6 cells inside is reading 0.2v but the other 5 reads 2.1v. It wont continue charging because the other cells already reached max voltage.
How do i fix this?
Don’t use distilled water. Throw out the whole thing and replace with sulphuric acid. It’s cheap and battery places sell em.
I had a motorcycle battery that couldn’t hold a charge above 6volts, and would lose it under load quite easily. I replaced cells with water and it did up to 7.
But It wasn’t enough to start the generator so I said fuck it. I just safely got rid of the liquid inside and put in the diluted battery electrolyte that has like 13% acid.
I didn’t even charge it after completing, and I checked it’s volts and got easily 10 volts under load. Later on I’m gonna slow charge it back up with the car battery charger.
Then run the generator and see how well it all goes.
Please note, don’t mess with acids and pretty much anything you don’t understand. Use safety glasses and rubber or plastic gloves. Work outside on a stably level surface. Use a syringe without the needle when pouring. It make it easier to prevent mishaps. Using a funnel is honestly not really good.
Also, if the acid gets on your skin and burns, neutralise it with Baking soda or baking power mixed with a little of water to make it a little more loosely than a paste.
Stay safe.
First off, I could listen to you talk every night what a fantastic accent! I am in the USA, good ol' Alabama so I don't get to hear too many guys like you. Ok, now this method does seem too good to be true, I am hoping for the best! A neighbor threw out a new scooter I just can't pass that up so I'm hoping I can recondition the batteries. Thanks for the info!
A dead battery can't be fix, you can only recharge a discharged battery. If it needs water that means you overcharge it and boiled the water off. The lead flakes off and shorts out the cell, if you get it working it won't last. That's why there is a limited warranty.
Yes but not all batteries are toasted when they don't charge, some are able to be saved and used.
If the cells are gone, there is nothing you can do.
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the battery you have is a common AGM type. It is an "acid starved" design, which means the matt between the plates is moist but not submerged in electrolyte like a flooded cell. (see battery university). When I tried this I killed already weak batteries . . So how do you know how much to add? I don't know either . . Maybe cut one open? There's another video!!
why dont you use a charger for say, and cable modem box? or small UPS adapter?
As a Postie, I have come into possession of three scooters from customers ;-) with battery issues, and a 5 million candle torch. All of the batteries need attention, and I'm hoping to use this information to get life into the batteries. Thank you.
Hey Brian, let us know how you get on, I bet you fix more than 50% of them if not 100% of them.
Remember to wear glasses, sunglasses anything that will protect your eyes from splashes, squeezing your eyes half shut is not good enough.
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@@oraclescave thank you for taking the time to reply. Hope all is well with you and your family.
@@oraclescave What's that you say? Safety squints aren't sufficiently effective? I believe AVE would argue otherwise. And he can still see!
This is wonderful info. Thank you Oracle!
Finally - I found the one who knows and your video did it -Wayda go there!!!
Thanks for showing and your info is very valuable. One thing you said was make sure the water was over the glass matts - Question here - by how much???
Put the water over the glass matts until it soaks in, you want to tip out the extra water above the matts, before you seal it.
The water is to help dissolve the crystals in the matt, thats all, they don't have to stay flooded like a lead acid battery.
Nice video, good that you didn't have to do the long hours of pulse repair charge on a smart charger, it sometimes do nothing after long hours of pulse charging the battery, but this method did it, and may I know if this is applicable to a Gel battery too? I have a charger for a gel type battery but whenever the indicator says it has 99% charge power and 14.5 volts I unplug it and stop the charging then when i check it back after a few minutes it will say the battery is full and 100%, is it normal to reach 14.5 or 14.7 for a gel battery or I should stop at 14.4volts, pardon me cause I am not used to Gel Batteries, thanks
very good video. one question, the cover, does it just snap back on?
No, just a bit of tape along the sides is fine.
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Hello boom on the grain lock the Roxy Movie Rundown what's that duct tape for airplanes Going Underground on the grind
No idea how and why this video popped up but the Timing was PERRRRFFFECT 👍
It popped up because your phone is always listening and you must have said something about charging dead batteries.
G'day mate, my 2, 12v battery's show 13.3v but only last a minute in the scooter. Do they just need topping up? Cheers
They have surface charges. Put them in a cool bath and hit them with 10amps for awhile till warm. Cool then repeat.
Very good video 👍🏼 I have used distilled water from dehumidifiers
My 12 volt batteries are for a Pride mobility scooter. I can’t figure out how to get them open! There’s a rectangular cap on the top but it doesn’t want to come off. Please respond if anybody can help!
Small flathead screwdriver should pop it easily, it's friction welded, so needs a bit of work around the edge, but will pop off, even a butter knife will do it.
I have used Stanley knife blades in the past.
Damn. These bids are not monetized by length. Must be Kansas. It ain't New York.
I recovered the voltage but not current.
almost no current with the voltage 12 V.
Why?
Trying this too. Some are easier to open than others one I opened was very low on water. Trying this even though I ordered a new battery. I can always use a spare around my shop.
How does the water disappear out of the battery?
So am I to understand that the water evaporates away leaving the battery acid behind so when you ad water it fixes the battery?
I would just recommended getting lithium iron phosphate replacement batteries.
You commented about "always connect the +ve first then the -ve. " This is often spread around, but no one explains the reasoning, so I will.
The relevance is a function of what you are connecting to and which side of the battery is connected to earth. Vehicles with generators were generally +ve earth, -ve hot, while vehicles with alternators are generally opposite, -ve earth and +ve hot.
The general notion is to connect the terminal and lead that should be hot first, then connect the terminal and lead that should be earth last, that way, if your wrench should touch anything earthed as you fasten the hot terminal, you will not create an arc and potentially spark a hydrogen explosion if the battery has gassed during charging. Once that is secure, and the earth is connected, it does not matter if the wrench touches the chassis while fastening the terminal as both are at earth potential and no arc will occur.
So for a +ve earth system, connect -ve first then +ve.
For a -ve earth system, connect +ve first then -ve.
For what you are doing on the bench, everything is floating (not earthed) so it does not matter what sequence you connect up.
Well that was a long shortcut lol
But very good advice, I only really work on floating batteries and car batteries that's why I used the terminology in the video.
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what battery type do you set the iMAX B6AC to when you're doing the slow charge?
@@BryanMiraflor pb because it's lead
After watching this a I took to fixing six 12V SLA batteries and have restored them and tested them for 12months and they are perfect. Thanks for posting.
I do this, I find theirs always a cell that likes to flood. Melting my fingers cleaning that shit up
It may have the voltage but what is the capacity like
Hey should I use epsent salt in the water ??
Excellent description on how to revive a dodgy battery 👌
Awesome bro
I'm still trying to figure out how to revive gel-cell batteries.....Got about six of them that won't charge out of my bikes, and yes the bikes charging systems are fine..Motobatt batteries are the worst pieces of crap out of all of them..Sick of buying new ones at $120.00 a crack..
Slow charging on low amps will build them back up, you need on of the old style chargers, the updated chargers are smart chargers.
Old fashioned chargers just give raw power without the stupid/smart microchips built into them.
Slow charge with low power, then if you can get some power into them, discharge it by using the power again maybe 2 wires and a bulb until power is used, then recharge at slightly higher power, and do this multiple times.
The trick is trying to get it to charge again in the first place, but it's absolutely possible, just not with a smart charger, look out for people having a garage clearance and get your hands on a 1980's motorbike/car battery charger.
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Thanks for the helpful video! I am in the process of trying this in hopes to revive my daughters 24v powerwheel. When filling the dry cells back up with water, are you supposed to top them off? I had the battery on charge for nearly 3 hrs after adding water and when i checked it, 2 of the rubber caps had popped off. At this point i took it off charge to check the voltage and add more water. A few of the cells did need another "drink":) my voltage went from 1.9v to 11.6v in the 3 hrs charge, i was just worried about the rubber caps popping off
The rubber caps are recommended to be off while charging, because gas bubbles are formed, I leave them on and experience them popping off too.
Fully charged battery will be over 12 volts, like 13.3 volts.
The battery might drink some water and need more once it is left to cool for a while.
Sounds like your Frankenstein battery is coming back to life.
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@@oraclescave thanks for the fast reply! Ok that puts my mind at ease. Kind of a remedial question, but since this is a 24v battery what kind of voltage will i expect when fully charged? Thanks again:)
@@jeremytannehill9427 probably around 26.6 volts roughly maybe more.
@@oraclescave Thats great, thanks again! We are excited to get it running again! Ironically, i stumbled across this video because i am currently doing a gas conversion on one of our old electric razor scooters! So thanks again in advance for the helpful info and awesome channel! Have a good day 😁
@@jeremytannehill9427 Thanks Jeremy that's very kind.
I'm glad I could help you in some way.
You will enjoy converting the scooter, I had a lot of fun and the feeling of accomplishment afterwards is awesome.
I'm in the process of trying to buy a broken dirtbike and planning on turning it into an electric dirtbike with 4 car batteries until I can make a lithium ion battery pack from old drill batteries.
Looks like a decent motor will cost a small fortune, but I think a homemade electric dirtbike 48v-72v would be awesome lol
Good luck with your conversion and if you make a video let me know.
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If you are charging a 12v battery in this video’ shouldn’t the charger be set to pb12 for 12v? It was set to pb6 for a 6v battery.
Excellent video. So very well explained. I have a salvaged 6 v battery that I cannot charge past 3 v. I just popped the top cover and saw 3 caps. They are depressed as well. I will try your method. Learned something very useful. Thank you very much and have fun.
Thanks for leaving your comment Daniel, very much appreciated Dude.
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Can i use battery water used in home inverter battery
Much simpler to connect the stupid smart charger and just apply power to the battery for a second or two to trick the stupid smart charger into starting to charge. Works for most but not all stupid smart chargers (some lock themselves off once full voltage is detected and can't trickle charge). Always fix water level first, that is often all that's needed. Avoiding buying stupid smart chargers is hard, but if you refuse to buy chargers that have reverse polarity protection you can find an automatic charger if you look long enough. I have a pile of worthless stupid smart chargers and got stubborn and found an automatic charger I can simply put on a battery and eventually even a stone dead battery will charge (a manual charger will burn up the battery, you can NOT do that with a manual charger). Expect to search for a LONG time to find a useful charger.
Also, those are not batteries that won't charge, those are "chargers" made to not charge batteries.
A trick with that smart charger not to keep connecting jumper pack is as follow as I did. Get any 12v power supply example pc psu or even a normal 10v to 14v transformer (AMPS DOES NOT MATTER)) r a electronic device transformer will work. Connect the 12v transformer and your smart charger- set smart charger at 2amps so you Have a safety amp max draw. Start your smart charger - It will detect 12v and start charging. Your 12v transformers amps does not matter as the smart charger will supply the amps as needed.
The trick is also connect a 12v pc power supply fan.
The fan will draw only small amps say 0.2amp. There after you can disconnect your temp 12v power source. Smart charger will then supply the 14 volts. As your smart charger has a 0.2amp draw the hole time due to the fan load, you will fool it as it is thinking its the battery is drawing it. You can then leave it for days. You will then also see amp draw increase on smart charger - Because you know 0.2 amp was draw at first. and it is the 12v load fan- any thing above you know is your battery drawing amps. (NO NEED THEN TO KEEP CONNECTING A the JUMPING SOURCE AS YOUR SMART CHARGER WILL KEEP PUSHING VOLTS IN AS THE FAN IS FOOLING IT WITH THE SMALL LOAD))
You can also maybe set smart charger to 7 cell 16 volts if it reconice it with the 12v jump. - 16volts for a while may de sulfate and volts boost it, if you cant get any amp draw after days with 12v charge - On 16Volts keep monetering battery for heat say every 30min , there after drop to 12v charge as above then only leave alone for long period. Helped me with a big 12v 27MAH as it did not want to pull amp for a while. there after 12v charge
Also with a battery I pulled some acid water from my car's battery - very small amount - added about 2mill per cell with rest normal battery water - iit also assisted with a battery to get it going witch struggled.
Hey I did everything exactly as mentioned but the battery is not maintaining the charge. Does that mean it's bad and I need to discard it?
It means that the liquid has lost its ability to keep charge.
It can always be brought back again by adding fresh electrolytes (acid)
Most people do throw them out but replacement acid is very cheap, and its very easy, so I choose to restore batteries.
Just look up battery replenishing packs, or sulphuric acid replacement.
I am having trouble. Do you think this charger would work? It says that it has adjustable power output from 0.5Amps-8Amps and 3 volts-60 volts.
Sounds good to me, you could even charge it up, drain it again by attaching it to something and using the power, then recharging at a slightly higher amps again.
You could start at 0.5amps, then next time 1.0amps then 1.5amps.
Then the battery with get stronger.
But yes that charger sounds perfect.
Just use a 9v battery and jumper wires to fool the charger
This is almost totally Greek to me! Men seem to know this stuff just because they’re guys. As a woman, I just don’t understand the language of Amps, Volts, MHz etc.
Electrical concepts and ideas aren't intuitive but can be approached by anyone with an attitude to learn and solve a problem. Nobody gets handed this kind of knowledge simply because of their genitals, they simply put in the learning. Good luck to you.
In all seriousness why bother? I had some UPS batteries and wasted a day adding water and trying to charge them. Then I checked on Amazon and new ones were £14 each. Instant decision and I put the old batteries out for collection and just fitted new. Two days ago I did the same with my car battery. It was less than two years old but with not using the car for months on end the battery died. Now a brand new Varta sits in the car. I will use the car weekly from now on and I know it will be reliable. Just simpler to replace. Reliability is more important than cost.
But if you don't have the ability to pay for new ones, or you might just be interested in tinkering with things, or have a genuine use for them after fixing.
So your comment belongs back in the same crap hole it fell out of.
These batteries are £60 EACH.
it's not my fault you lack basic knowledge about stuff.
If I could get the batteries at the price you can get them at, I would do that too.
But I get these batteries by the dozen fixing and modifying kids ride on toys, so I tinker around with batteries and find things that work.
It's not my problem that it's not what you were looking for.
So in all seriousness, do 1
I use a Dewalt model DXAEC2 6V/2A 12/0.5A trickle charger. It works from 0V to 12.8V. None of that tricking chargers
So does that have an adjustable voltage output setting on it? I have two 12 volt batteries like the one in this video. I can't get either one to charge above 6 volts.
Thank you for this awesome video I was able to revive my batteries in my wife's scooter! Great job explaining it all everything was just as you explained.
My battery is working normally . It just wont charge . Its performance is normal
Thank you so Sir. I did put water in it but I didn't know that I have to use some strong current to get it recharge. But I am still working on it. Thanks once again.
Can you really see kids of today actually looking after anything they have .Let
alone charging a battery ?? And there is a battery charger used for trickle charging ,E-Bay
again, which has a fix setting on.This is for batteries which have very little or no charge at all.
It's helped hundreds of people already.
How many people have any of your videos helped ?
There is many ways to skin a cat, not just your way.
Man this British account is brutal for foreign speakers like myself. 😂 Now I'm gonna inject a botl' o' waha' in my battery.
That will give all the crack you have injected some dilution.
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Getting it to resume charging v again does not mean it us restored. Once battery lead plates sulfate they will not hold and discharge the original amount of watt hours. This means the amount of work it will do is greatly reduced. This may somewhat extend the life of a battery in low demand applications. But it is no miracle restoration.
Unless you reverse sulfation, but yes even then it won't go back to absolute full charge without some fresh electrolyte.
Is it common for the plastic caps to pop off while jumping the battery? 5 caps popped like popcorn. Is it due to using too much distilled water?
Lol I said leave the caps on as a joke.
I kept having to run around looking for them, so I told everyone else to do the same 😆 🤣 😂
Leave them off
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Can you charge a 12v battery with a magneto. I have a mini-bike with a headlight that runs on a magneto. I installed a tail light which runs off a 12v 7 Amp battery. So my question is can I hook up the magneto wires that go to the head light to the battery and run the the whole system snd charge the battery at the same time.
I'm not sure I think it might need a VOLTAGE RECTIFIER.
Some mini bikes have them.
I don't think its possible to wire it just to a magneto, a magneto would probably produce between 6v-12v, a mini bike is probably 5-6v magneto but straight wired I think might be dangerous.
Way back in the olden days in the US,older gents would have a very strong battery charger and would literally do routine maintenance on their own batteries by topping them off with distilled water and then heating the battery up to bake off or loosen the accumulated bad stuff from the plates taking care not to fry the plates lead or solder joints and they could literally use the same battery for 10 years or more.. Nowadays all manufacturers want people to simpky replace their used batteries with brand new and "charge" them a disposal fee for taking in the old "dead" batteries which usually wind up being recycled by installing the internals into new cases refilling with fresh acid and charging them again and reselling them as new or remanned and making profit again and again and again... They do NOT want consumers getting a decade or more usage off a single battery sale when they can and often do get them as many as 3-4 times during 10 years... Unless a battery develops a dead short in 1 cell then it is always renewable as you've just proven and an acid pack from the local auto parts house will often renew 2-3-4 batteries if used to top off a good battery rather than water which in fact dilutes the remaining acid..
I am trying to revive two of these 12v 8aH batteries from an old uninterruptible power supply. I added distilled water just to the top of the plates, then wired the two batteries in parallel with a spare car battery that is sitting on a trickle charger. After 24 hours one battery is 3.5 volts and the second battery is 5.5 volts. Both started at basically ~0 volts. What are the odds the two batteries recover? I made sure to check they still had water. I know it's only been 24 hours. I am under the impression it could take a whole week. I am unsure how long they sat dead before I started trying to revive them.