You must play with childrens toys. You do not leave lipos attatched to an esc

Makes sense think that’s happen to me.. I unplugged one battery on my erevo now went to charge them and ones drained

Awesome, glad it worked for you!

Thank you for watching!

Awesome!!! Glad this helped :)

Fixed two.

Glad it worked for you!

@@RCJuice I'm watching your video hoping it can fix my 4s lipo that has 1 cell too low. It's frustrating because although I'm not an expert on batteries I feel like I take very good care of my batteries but I always putting them on storage mode after each run, and never letting a battery sit fully charged for more than one day, and even that's rare.

@@williamperri3437 If you do have 1 cell that is too low then this will not work, this is for a pack that is discharged too far across all cells. If a cell is bad, which sounds like your case, then the pack is unfortunately done. Sometimes cells go bad even if the pack is cared for correctly :(

Glad it worked for you! Your situation is exactly the scenario in which this works, thank you for watching :)

Our pleasure!! It usually spikes the voltage enough to charge in LiPo mode very quickly, thank you for watching and please let us know if you have any questions or if we can help in any other way.

@@RCJuice ...Thankyou so much !!!! ...My friends battery had been sitting for a couple months, and normally I put both of his lipos in "storage mode", but I guess I forgot !! 🙄 So thanks again !!!👌

Thank you for watching!

Glad it worked and saved you a battery!

Glad to hear it worked!! The charger sends current just the same, no matter what mode it is in. The only difference is the measured voltage at which it stops charging, the only danger is if you set it to chage on NiMh mode and then walk away and forget about it, it would overcharge the battery and could destroy it or even cause a fire. There is no danger in charging it for a while in NiMh mode as long as you pull it off before it reaches full voltage.

Glad it worked, another battery saved!

Thank you for watching, and glad it helped!!

Thank you for watching! You can technically charge them up until they are at 4.2v/cell, doing this is just like charging them in LiPo mode but it will just not stop. We don't recommend charging them all the way up this way, but you CAN charge them for much longer than 30-seconds to a minute, that's just usually all it takes.

@@RCJuice Appreciate the info

Thank you for watching!

Good question. No you do not, if you do so then the charger will error out on you.

Great question it did not work for me until I saw your question and took off the balance lead now I'm back in the game! Thanks guys.

Hey how do you exactly do that? I have a 3S 1500mah that only read as 2S by my balance charger. Turned out one cell have less than 2v in it

Glad it worked for you, thank you for watching!

Nice, glad it worked!!! Thank you for watching!!

There is no way to do this with a standard Lipo charger, but charging it in NiMh mode will charge all cells. If you have only 1 cell that is lower than the rest then it is likely a bad cell and may not be able to be revived, this trick is more for overly-discharged packs on which you'll see low voltage across all cells.

​@@RCJuice Ok.. thanks for replying

This is the SkyRC S65: www.rcjuice.com/skyrc-s65-ac-high-voltage-lipo-balance-charger.html

Thank you for watching!

Do not connect the balance cable or you will get an error in NiMh mode, just connect positive and negative.

If this is a new LiPo then no, that sounds like a defective cell. This trick is for when all cells have been run too low, but they should be in similar states. Any time you have one cell that is very different from the others that indicates a bad cell alltogether.

That sounds like there is a complete failure of 1 cell on the pack. This trick is for when all cells have been discharged too far, but it sounds like in your case you have 1 cell that is actually damaged or completely dead and unfortunately, this cannot fix that.

This works when cells are all too low, but relatively close to each other. If you have 2 cells that are reading voltage and 2 that are at 0 that unfortunately sounds like the cells are bad and not fixable.

@@RCJuice okay 👍🏻 appreciate it for your help thank you....

Unfortunately, that is most likely not revivable. When all cells are low then the pack health is usually OK and they just need to be charged up a bit, but when 1 cell is at 0 and the others are at a nominal voltage that sounds like a bad cell altogether. Sorry....

@@RCJuice Thanks!!

If a cell is bad then there is no reviving it, a good indicator is one cell have a very different reading than all other cells. If all cells are very low then the pack is likely just over-discharged and this will work, but if one cell is much lower than the rest then unfortunately the pack is likely toast.

@@RCJuice i was scared of that. thanks for replying, i will be purchasing a new battery. 😎👍

For that battery the best you can do is to run several charge-discharge cycles (Do at least 5). If it does not come back to capacity after that then it's going to be done, at that age and sitting that long it's likely not going to come back very strong unfortunately.

We recommend charging in balance mode. In his particular case, we would recommend the same. Click "No" to be on the safe side.

The bag usually ends up right next to the charger, even the shortest leads typically give you enough length to do so.

Unfortunately, that seems to be correct in your case.

If you have 0 volts then those cells are completely dead and not revivable (sounds like a defective pack). This is for when all cells are low but still in similar shape, unfortunately, it sounds like your pack is not fixable.

A fully charged 6S battery should read a total pack voltage of 25.2. A motor catching fire would be related to overgearing and overheating of the motor, not the battery itself.

Is it giving you an error message? If so, what is it saying? Also, what charger are you currently using? Thank you for the question.

If you are able to set the charger to NiMh mode then this trick will work for you, but some basic chargers do not have this option and you would not be able to do this.

You can still try this, but if you have 1 cell that is really far off of the others it may be a sign of a bad cell that cannot be revived. This is more for when all cells have been discharged too far.

What are the cell voltages when you begin charging? It depends on how depleted it is when you begin the charge cycle.

Usually only takes a minute or two.

@@RCJuice yup im 13 and never had 3s in my slash just 2s and im waiting for it to be nice out to test it i saved 3 batterys with this

If it says short-error, you may have another issue alltogether. This works for packs where the voltage is too low due to sitting too long, or being discharged too far in use.

Yeah that's what I was figuring too. Thanks Though.

Start by checking individual cell voltages once it starts to slow down to see if the pack is balanced. if all cells are close, then it's possible the battery is just worn out.

You may not be able to do this on them unless you can isolate the power terminals and connect those directly to a LiPo charger.

@@RCJuice hey my battery is a traxxas 4s lipo cell 4 is 0.1v

@@onyxtheprotogen7907 0.1V may be too far gone, you can try this trick but it may be done.

@@RCJuice i hooked it up yeaterday and it showed 0.0v and on the other battery it wouldnt even pickup the 4th cell

@@onyxtheprotogen7907 That unfortunately sounds like it's too far gone.

If any cells are at a significantly different voltage than the others then you may have a bad cell which this will not fix. What are the cell voltages?

Awesome, glad it worked for you!

If a cell is actually "bad" this will not work, this is for when cells have simply been discharged too far. If you have a pack where one cell is in a much different state than others then that is usually a bad cell and it cannot be fixed. If you are charging it in NiMh mode for a few minutes and the voltage does not come up then it may be damaged, but try charging and discharging a few times for 5 minutes each time to see if you can "wake up" the pack, sometimes it works.

@RCJuice thanks , I tried it and one just broke back over 5v so maybe a few more time I might have something lol thanks again 🍺

You can charge it longer on NiMh. It usually only takes a minute or two, but you can leave it on much longer if needed. You just can't leave it on there and walk away from it, it will charge just the same as it would in LiPo mode, but it would not shut off when it needs to so you can't just let it charge all the way but there is no harm in leaving it charging in NiMh mode for longer as long as you stop it before the cells are fully charged. If it will just not take a charge then it's possible the cells are too far gone. Check individual cell voltages too, they should all be somewhat close in voltage, if you have a cell that is way off of the others that's an indicator of a bad cell that cannot be repaired.

Yes you can charge that for a while longer to see if it comes up enough. Check the individual cell voltages first though, if any 1 cell is really far off of the others then the battery is likely no good, this is for when all cells are discharged too far but still otherwise relatively balanced.

Any charger that can charge in NiMh mode and then in LiPo mode (just about every Lipo charger on the market meets this criteria).

RCJuice I mean like do you have a specific brand. What is the cheapest

In NiMh mode balancing should not be an issue since they do not have balance plugs, make sure you do not have the balance plug connected to the charger and ensure you are in NiMh mode.

@@RCJuice should I be worried that cell 2 and cell 3 are at 0? Before doing this

@@fleurimondproductions2786 If they are truly at 0 then it's likely the pack is not revivable, you can still try this and it will not hurt anything but it's possible the pack is just junk at this point.

@@RCJuice thanks a lot! I have this video saved for the future me that messes up

@@fleurimondproductions2786 Our pleasure, and please feel free to reach out with any questions you may have in the future: www.rcjuice.com/contacts/

Sounds like you have the balance lead connected, remove the balance lead and it will let you.

@@RCJuice it doesn’t have a balance lead it’s the new battery’s without it.

@@bennybabch552 Gotcha. It does have balance leads, but they are built-into the connector so this is not going to work with that charger. Sorry :(

What charger are you working with?

@@RCJuice nvm i just ordered one and if it doesn’t work then i’ll return the chargwr

www.rcjuice.com/skyrc-s65-ac-high-voltage-lipo-balance-charger.html

@@RCJuice appreciate it

If 1 cell is dead then unfortunately this will not work, this is for when all cells are discharged too far.

@@RCJuice thanks

Yes, that works as well!! Nice work.

Some basic chargers do not have modes, but you can find a charger that can do this for reasonable prices now: www.rcjuice.com/chargers-accessories/chargers/imax-b6ac-50w-ac-dc-balance-charger.html

@@RCJuice ok ty :)

You do not plug in the balance lead for this.