Originally Posted by Turbopropdrive
I will use my B6AC charger to try to recycle them (BTW can 1s lipos be recycled in parallel? Just asking!), and see what happens
You could cycle them in parallel but it will be harder to tell if you have improved a bad one. The way you'll gauge improvement is to either time how long a discharge cycle takes or look for an increase in the total mAh during a discharge. The test before and after must be with a single battery. Start fully charged and your charger will stop when it reads a preset voltage. Probably 3V or 3.3V for a 1S. Hopefully your charger reads out time, total mAh, or both for a discharge.