i would charge them slowly and in a liposack (or equivilant) outside checking them every 15or so minutes... sitting there watching them for 5 hrs wouldnt be practical
hyper 8.5 pro SOLD!
Monster Max Still Working...
JR SX3
Neu 1512 2D/S
12t pinion
4800 zippy-r
If the cells are not swollen, chances are they are fine. If you want to change wires, work on one wire at a time - less likely for a short to happen.
I would charge that pac outside too, but just the 1st time. If it's ok charging, then I wouldn't worry about the pac after that, just treat it like you do your others.