Originally Posted by thedhgroup
Before I plugged the charger in I read 127 and after as little as 5 minutes it read 150. Good news perhaps?
Any sticks that suffered the reversal will likely have extremely low capacity. The fact that you're getting full voltage out of it (and probably full amperage) will mean little if you only get 500 Mah out of it. In addition, 5 minutes of use might unbalance your pack if only some sticks are bad.
At this point, I'd recommend dismantling the melted pack and extracting any non-deformed sticks. I would also recommend that you test every stick in both packs individually and it would have been better to get V of each stick before you started. I'm assuming that you have a dead short in one stick and that caused the full pack to drive into the other.
Shorted sticks will show 6V or less when charged. Reversed sticks may show less than 0V before charging or not depending on how many cells reversed.
I suggest that you test each stick individually or capacity. You may have enough good ones left to build a pack or at least most of one.
The one thing you should NOT do at this point is to run the pack in a car. Your event happened while the car was at rest, so whatever happened to cause it has not yet been subjected to the car's charging and discharging.
Test and repair it, then use it.
Let me know if I can help.