Solar Lipo Charger with XIAO ESP32S3

Support Product Questions
1

Hi,

I bought recently a XIAO ESP32S3 with a lipo charger.

I soldered the battery onto the XIAO, everything works fine

Yesterday I tried to add my solar charger ( Solar Lipo Charger (3.7V) | Buy in Australia | DFR0264 | DFRobot | Core Electronics ) by connecting it with JST PH, but nothing happened.

I checked cable, by connecting another card with JST it lights up properly, so it’s not a wiring or battery problem.

Can you confirm that the ‘OK’ LED should light up on the board when I connect it? I have the impression that it’s not working. Maybe I forgot something?

Thanks

2

Hey there, @johann318929, and welcome to the forum. Glad to have you here.

Would you be able to share some photos of your setup? I’m having a hard time fully visualising it from your description.

That being said, OK/green LED indicate charging status once 4.4–6 V is present at PWR IN not when a battery is connected. The charging LED should flash red when no battery is detected, red if charging, and stay green if its fully charged.

If you’re not getting any LED activity at all, I would presume that indicates that no power is going through the board.