Photo 1 of AITIAO 4PCS 4S 40A 16.8V Li-ion Lithium Battery Protection Board PCB BMS 18650 Lithium Charger Protection Circuit with Balance for Drill Motor

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Photo 1 of AITIAO 4PCS 4S 40A 16.8V Li-ion Lithium Battery Protection Board PCB BMS 18650 Lithium Charger Protection Circuit with Balance for Drill MotorPhoto 2 of AITIAO 4PCS 4S 40A 16.8V Li-ion Lithium Battery Protection Board PCB BMS 18650 Lithium Charger Protection Circuit with Balance for Drill Motor