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Old 02-26-2008, 08:58 PM   #1
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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
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Old 02-26-2008, 09:04 PM   #2
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Are the battery packs in the vehicle when you charge them?
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Old 02-26-2008, 09:26 PM   #3
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nope, there on top of the ice
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Old 02-26-2008, 09:37 PM   #4
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Sounds like the cells are venting. Not a good thing

Are they hot?

Do some cells feel warmer than others?
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Old 02-26-2008, 10:03 PM   #5
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no they feal all the same temperature. but all 6 of my batteries are doing it
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Old 02-26-2008, 10:38 PM   #6
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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.
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Old 02-27-2008, 05:20 AM   #7
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well i can try charging it with deans instead of banana plugs and see what happens.....
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Old 02-27-2008, 06:28 AM   #8
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I don't know about the sparks, but it sounds like the cells are venting.
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Old 02-27-2008, 08:11 AM   #9
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Don't pit by me.
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Old 02-27-2008, 12:49 PM   #10
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Quote:
Originally Posted by RB FIVE View Post
Don't pit by me.
Me either
I think pitting at 360 would be safer
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Old 02-27-2008, 12:58 PM   #11
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Quote:
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Me either
I think pitting at 360 would be safer
haha but evan also said something about venting when i asked him, like the battery's were realsing energy or something like that....
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Old 02-27-2008, 12:59 PM   #12
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Originally Posted by BSS07 View Post
haha but evan also said something about venting when i asked him, like the battery's were realsing energy or something like that....
Whats the peak detection setting on your charger set too? it's probably 2x as high as it should be.
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Old 02-27-2008, 01:27 PM   #13
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haha but evan also said something about venting when i asked him, like the battery's were realsing energy or something like that....
I would never ask evan for advice.
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Old 02-27-2008, 02:21 PM   #14
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I would never ask evan for advice.
ahahahahahaha
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Old 02-27-2008, 05:32 PM   #15
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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.
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