Anmbest 2PCS 4S 14.4V 14.8V 16.8V 5A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell

Anmbest 2PCS 4S 14.4V 14.8V 16.8V 5A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell

• HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours.
• MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection for your devices, your chargers and most importantly:you.
• LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption.
• WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc.
• ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B1: the connect point between battery 1 and battery 2, B2: connect the point between battery2 and battery 3 , B3: Connect the point between battery 3 and battery 4, B-: connect to battery negative end , P+: connection charge / discharge positive, P-: connection charge / discharge negative. Otherwise it will cause damage to the chip. Do not mix the good battery and poor battery to use.