3S 4S 5S 6S 7S 15A BMS 20A 18650 ion Lithium Battery Protection Board Module 12.6V 16.8V 21V 25.2V 29.4V Packs Balance Heatsink
USD 2.57USD 3.57
3S 4S 5S 6S 7S 15A BMS 20A 18650 ion Lithium Battery Protection Board Module 12.6V 16.8V 21V 25.2V 29.4V Packs Balance Heatsink