battery scare
02-26-2008, 07:58 PM
#1
battery scare
when ever i charge my batteries......(15amp powersupply, duratrax ice w/banana plugs. my batteries are all doing it 4600 ep, 3300 matched).
towards the end of the charge i hear a crackling noise and my batteries are making short bursts of sparks where the banana plugs are connected to the battery....yes they are on correctly postitive with the positive and negitive with the negitive. what is this??!?!
no other metal is touching the connectors
towards the end of the charge i hear a crackling noise and my batteries are making short bursts of sparks where the banana plugs are connected to the battery....yes they are on correctly postitive with the positive and negitive with the negitive. what is this??!?!
no other metal is touching the connectors
02-26-2008, 08:04 PM
#2
Tech Apprentice
Are the battery packs in the vehicle when you charge them?
02-26-2008, 08:37 PM
#4
Tech Regular
Sounds like the cells are venting. Not a good thing
Are they hot?
Do some cells feel warmer than others?
Are they hot?
Do some cells feel warmer than others?
02-26-2008, 09:38 PM
#6
how many amps are you charging them at?
if the cells are not hot, you could try and hook up a multimeter onto the batteries and see if there are any big spikes...and check each cells voltage...but since all your batts are doing it, it doesn't sound like a bad cell.
could also be your charger.. mabey try another and see if it stops? I think its nothing more then a loose connection or bad solder somewhere.
I mean, where is it sparking, the ends of the cells, or the connector you used? sounds like theres a short somewhere.
if the cells are not hot, you could try and hook up a multimeter onto the batteries and see if there are any big spikes...and check each cells voltage...but since all your batts are doing it, it doesn't sound like a bad cell.
could also be your charger.. mabey try another and see if it stops? I think its nothing more then a loose connection or bad solder somewhere.
I mean, where is it sparking, the ends of the cells, or the connector you used? sounds like theres a short somewhere.
02-27-2008, 04:32 PM
#15
It seems you are saying that the sparks are from the bannana connectors, not the batteries themselves, then I suspect the connectors are not making good contact. Not cell venting.
Are the connectors getting warm/hot? If so, it seems that they are warming up, and thus expanding slightly. Towards the end they expand enough that ya start losing contact, then the sparks start.
Low budget fix, crimp the connectors with pliers some to get a better contact. Better, new connectors.
Good Luck.
Are the connectors getting warm/hot? If so, it seems that they are warming up, and thus expanding slightly. Towards the end they expand enough that ya start losing contact, then the sparks start.
Low budget fix, crimp the connectors with pliers some to get a better contact. Better, new connectors.
Good Luck.