Yes, i think 5V is good enough. I'm planning to power arduinos and 8266 etc. so i think a TP4056 (or two for encrease charge current) for charging 3-4 18650 is the way to go.
Yes, i think 5V is good enough. I'm planning to power arduinos and 8266 etc. so i think a TP4056 (or two for encrease charge current) for charging 3-4 18650 is the way to go.