Over charging protection, over discharge protection, short circuit protection, over current protection function.
Protection voltage range: 2.5V-4.2V.
The protection board is for 1S Li-ion/Li-Polymer battery cell.
Charging connector and discharging connector are the same(P+, P-).
ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+:battery output input positive, P-:battery output input negative, Otherwise it will cause damage to the chip.