OutoftheBOTS wrote: ↑
Wed Sep 27, 2017 5:31 am
I am more concerned about size.
The concern with Li-Ion and Li-Po batteries is the fire risk. Over discharge can lead to crystal growth in the call that causes overheating during charging and can result in fire. You may know that Samsung had problems with Galaxy Note7 LiPo batteries catching fire and similar stories have made the news now and then.
A manual switch can be forgotten.
I don't now what risk the particular cells your want to use may pose. You may have a cast-iron protocol for charging cells in fire-proof containers with thermally regulated chargers. Be aware of the issue.
Battery protection circuits that are small and cheap are readily available and should prevent the common problems of over discharge, over charge and short circuit. Some packs, even 1S, will have such circuits built-in, but many won't.