HELP....Battery too low to charge.

[ray carey]

HI, thanks for looking. Ive managed to leave my car swithched on all night with battery (lipo 5300 LRP) still attached, I am now trying to charge ,but charger is bleeping and saying that battery has very low voltage. What can be done please. Many thanks.:blush:

[DCM]

Right, I take NO RESPONSIBILITY for any damage but.....

I have had this to a battery do the same, that had not swollen, I raised the voltage to 6.2v by putting it on a 1A NiMH charge, but as soon as the voltage was 6.2V I cancelled the charge and switched to LiPo charge.

DO NOT ATTEMPT IF BATTERY IS OLD, DAMAGED OR SWOLLEN

[bodgit]

How low has it gone down to?
You can try charging it with a nihm charger on a low amperage 1-2 amps for 1-2 mins at a time to try and bring up the voltage then switch to your normal lipo charger.
Plus get thread moved to electrics

[teamorsum96]

Right, I take NO RESPONSIBILITY for any damage but.....

I have had this to a battery do the same, that had not swollen, I raised the voltage to 6.2v by putting it on a 1A NiMH charge, but as soon as the voltage was 6.2V I cancelled the charge and switched to LiPo charge.

DO NOT ATTEMPT IF BATTERY IS OLD, DAMAGED OR SWOLLEN

i agree on this,it happened to me, it does work.mine was only on NIMH charge for like 5seconds, just enough to hit 3.1volts a cell then put it on 0.5amp on the lipo charger, it may take a few cycles before the battery becomes as good as it was, but also may not hold its charges as long.

[mattd3bt]

yep all the above are ok, i had one from new like this, a few mins on NIMH until the charger could detect the voltage then go back to a normal balanced charge. It will be fine

[ray carey]

thankyou all. looks like its working.......on balance charge now.:thumbsup::thumbsup:

[teamorsum96]

i no when you come to it and it wont charge, i was well miffed of, but once i did it like this i was 'whoop'

[dibble34]

I have just tried this on a dead pack and it is charging, top tip. However if there is a small explosion on the news tomorrow in Hampshire then that may be me :woot:

[ray carey]

I have just tried this on a dead pack and it is charging, top tip. However if there is a small explosion on the news tomorrow in Hampshire then that may be me :woot:


lol, i was thinking the same lol. im in herefordshire.so we both could be in the news.good luck.:woot:

[teamorsum96]

home made bombs haha

[Moozo]

I did what has been said above to a lipo and this happened
http://www.oople.com/forums/showthread.php?t=70701
my advice be very careful!!!!!!!!!

[mark christopher]

I did what has been said above to a lipo and this happened
http://www.oople.com/forums/showthread.php?t=70701
my advice be very careful!!!!!!!!!

that looks like its been over charged or was puffed before you started to recover it

[chickentikka25]

Knowing how volatile RC batteries are, why bother messing with them?? Just write it off, buy another pack, stay safe.

And if you race with me please let me know so that I don't marshall your car with this Lipo in it, I don't wanna be anywhere near it lol!