Balanced Current Lithium Battery Balancer (BMS) for Polymer & Li - ion Batteries - 2S/3S/4S, 8.4V/12.6V/16.8V, Compatible 18650

Balanced Current Lithium Battery Balancer (BMS) for Polymer & Li - ion Batteries - 2S/3S/4S, 8.4V/12.6V/16.8V, Compatible 18650

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