CD42 DC 5V 2.1A Mobile Power Diy Board 4.2V Charge Discharge(Boost) Battery Protection Indicator Module 3.7V Lithium 18650
USD 0.77USD 1.07
CD42 DC 5V 2.1A Mobile Power Diy Board 4.2V Charge Discharge(Boost) Battery Protection Indicator Module 3.7V Lithium 18650