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DC 5V 2.1A Mobile Power Diy Board 4.2V Charge / Discharge boost battery protection indicator module 3.7V lithium 18650

USD 0.55USD 0.58

DC 5V 2.1A Mobile Power Diy Board 4.2V Charge / Discharge boost battery protection indicator module 3.7V lithium 18650

Description
Specification
10pcs SG3644 SG3644M DIP8
USD 5.65USD 6.49
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