10pcs MH-CD42 CD42 DC 5V 2.1A Mobile Power Diy Module 3.7/4.2V Charge/Discharge(boost)/battery protection/indicator module

10pcs MH-CD42 CD42 DC 5V 2.1A Mobile Power Diy Module 3.7/4.2V Charge/Discharge(boost)/battery protection/indicator module
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sku: 1005005529829707
$3.12
Shipping from: China
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