2S/3S/4S 1A/2A/4A Step-Up Boost Charging Module Type-C Lithium Li-ion Battery Charging Power Protection Board 8.4V 12.6V 16.8V

2S/3S/4S 1A/2A/4A Step-Up Boost Charging Module Type-C Lithium Li-ion Battery Charging Power Protection Board 8.4V 12.6V 16.8V

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