10pcs MH-CD42 CD42 DC 5V 2.1A Mobile Power Diy Board 4.2V Charge/Discharge(boost)/battery protection/indicator module
USD 4.99USD 5.54
10pcs MH-CD42 CD42 DC 5V 2.1A Mobile Power Diy Board 4.2V Charge/Discharge(boost)/battery protection/indicator module