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1S 2S 3S 4S Single 3.7V 18650 Lithium Battery Capacity Indicator Module Percent Power Level Tester LED display board

USD 1.10USD 2.20

1S 2S 3S 4S Single 3.7V 18650 Lithium Battery Capacity Indicator Module Percent Power Level Tester LED display board

Description
Specification
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