1S 2S 3S 4S 5S 6S 7S 4.2V -29.4V Lithium Battery Capacity Indicator Battery Power Display Board Tester Li-po Li-ion Pack LED
USD 0.73USD 1.13
1S 2S 3S 4S 5S 6S 7S 4.2V -29.4V Lithium Battery Capacity Indicator Battery Power Display Board Tester Li-po Li-ion Pack LED