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Old May 27, 2007, 12:47 AM
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Frankenstein recycled packs
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USA, AZ, Gilbert
Joined Jan 2006
9,086 Posts
If it was not what pmackenzie said, it looks to me like the bar fatigued from movement/vibration and went open but was still touching enough to arc as you were pulling max amps.
I would get a piece of thin metal and solder it across the break. Don't just solder the gap as that would be a very weak connection.
When completed you may want to add some tape to keep the cells from moving and having a repeat of this failure.

Rick
www.commonsenserc.com
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