I have an old remote control air plane rechargeable battery I want to use for something else. The problem is I need it 9.6V and the two packs of 5 cells is 6V each. I want to combine the two 6V into an 8 cell 9.6V but I can't seem to split them apart. Currently I'm discharging them through the old airplane motor that they came with. First off, should I be messing with them. If so, is running them through a motor a good way to discharge them, and finally how should I go about separating them so I can recombine them?
Those 6V battery pack was packed with hard glue and welded joints. Separating them is not an easy task as you though without any proper tool. Besides, most old old rechargeable battery pack 50% inside the cells were dried out or leakage or shorted due to aging. Not much chance to rebuild them into a workable 9.6V pack.
