3 Contact LiPo Battery Packs (Patreon)

3 Contact LiPo Battery Packs

"Short" explanation how the third contact on one cell lithium polymer packs(3.7V) is used for temperature sensing. If your pack has more than 3 contacts it has probably more cells (higher voltage). More contacts are needed to balance the single cells while charging. This video has it's flaws, but it should give you a rough insight of the techniques used there.