Hi everybody,
I have a custom design ESP32-Wroom-32E board. I need to add back-up battery for supplying ESP32 when DC power is down. I am planning to use 18650 li-ion battery as 2S. I found a module which is FDC-2S-2. I need to make something like, When there is power It should charge battery and supply ESP32, when supply is down, battery should power ESP. How should I connect it. I am not good at batteries, charging etc.
Thanks for helps and suggestions.
Post a preliminary schematic of what you are trying to do. The FDC-2S-2 is a 18650 charge protection board. You need more parts. Also how are you going to be sure the ESP32 voltage stays in range during charging until it discharges?
Who designed it ?
Post a schematic.
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