Heat Question

CBHVR6 · 08-18-2009, 08:26 AM

I run dual 40c 5200mah in my erbe. over the weekend, i kept the car in my jeep with the batteries in it.It's been very hot here. I ran them til cut off sunday evening and when i took them out to charge them, the cases were split. Not completely but definitely more than they were. When i squeeze them, they feel very swelled up almost squishy sort of. I was hesitant but charged and balanced them. They charged and balanced perfectly.

Are they ok?

CBHVR6 · 08-21-2009, 04:40 AM

anyone? i run them again last night til cut and they seemed fine. runtime seemed alittle shorter though.

CBHVR6 · 08-22-2009, 05:27 AM

?????????

CBHVR6 · 08-24-2009, 04:29 AM

is there even a smc forum anymore?

revo61 · 08-24-2009, 04:34 AM

I would dispose of them, you are playing russian rollette. They can go at anytime, I would not charge them anymore. And yes lots heat will hurt the packs and also make sure your cut off does not drop the packs below 3.2v per cell that will damage them as well.

CBHVR6 · 08-25-2009, 06:44 AM

seriously?! dispose of them!!

revo61 · 08-25-2009, 07:12 AM

yes, puffing means damage a major chance of this:
http://www.youtube.com/watch?v=YCWdnjLqVWw
Imagine that happening while they are in your truck.

CBHVR6 · 08-25-2009, 07:32 AM

but its not that bad at all. the case is open more on 1 side than the other. the case didn't open or anything.

revo61 · 08-25-2009, 08:08 AM

Any sign of puffing is not good and it will only get worse. They should not expand or puff at all.