Short 'em through a resistor, it's easy enough to fully discharge them. You damage them if they're left discharged for too long, but for short periods, it migh

Short 'em through a resistor, it's easy enough to fully discharge them. You damage them if they're left discharged for too long, but for short periods, it might be fine. Unfortunately, they also tend to swell when fully discharged. "Disassembling lithium batteries without destroying them or your workshop" is depressingly hard.