5V3A 3.7V4.2V Li-ion Battery Charging Discharging Protection Board Boost Module
ab 1,19 €
Charging and discharging module 1. Step up module. Adapter Module. Step down module. Display module. Wireless module. 3A (battery side) high efficiency charging. 5V: module 5V output positive welding point (can also be used as input wiring).
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