Firebeetle does not work with battery?
Charles.Heisig 2026-01-31 09:42:42 280 Views3 Replies I have a FireBeetle ESP32 version 4 board. I have a LiPo battery that is fully charged plugged into the on board connector. The board does not power on. It works fine with USB power. I purchased the board because it requires very little current in Sleep mode. What do I need to make it boot up in battery mode?
disregard my previous post…somehow the terminals of my multimeter were connected inverted…
luckily nothing blew up.
Mi.Wa I have firebeetle esp32-e v1.0 and it seems the battery terminals are inverted?!
After a few seconds I noticed it and unplugged the battery. Soldered some cables to invert the plug and connected, but the firebeetle wouldnt turn.
Very confused I plugged in the USB port again and luckily it turned on again.
Then I connected the battery again directly and it turned on again. I measured the voltage at the battery terminals and the polarity is inverted?! WTF?!
Mi.Wa 1. Please confirm that the positive and negative terminals of the battery match the markings on the circuit board.
2. After connecting the battery, you can use a multimeter to test the voltage at the battery pads on the back of the PCB to check if the battery is properly connected.
erhahaha 