This is 1S 18650 Li-ion Lithium Battery BMS Charger Protection Board for 3.7V Battery. Protections Short circuit protection Overcharge protection Over-discharge protection Over-current protection Pins description: P-: negative of input or output power P : positive of input or output power B-: negative of the battery B : positive of the battery Features High accuracy voltage detection circuit; Using high voltage device charging terminal; The built-in three-stage overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit); The battery charge and discharge can control the MOS transistor;
