I am facing an issue wih powering ESP-32 Wroom on LP103454 3.7V 2000mAh Battery. ESP-32 is accompainted with LORA 433 MHZ module. Both are working fine with 5V USB power, Once I remove the USB power within a few seconds the board is dead. I hv fully charged the battery showing 4.17 V and at esp32 PO…

ESP 32 WROOM not working on Battery Power

yawarp August 29, 2025, 7:35am 3

I am using ESP32-Wroom-32UE chip. Voltage with charging plugged-in or Battery plugged-in is reading same as 3.29 V at pin 3V3 of of ESP32.

Topic		Replies	Views
Different battery measurement value with power USB cable/Battery with ESP32 General Guidance	6	1050	May 5, 2021
Powering Arduino Esp32 Wroom General Discussion	3	639	August 18, 2021
Powering ESP32 General Electronics	3	3546	May 6, 2021
Powering ESP32 (i Know this is Arduino, but I don't know where else to post) General Electronics	4	2236	May 6, 2021
ESP-01 and 3.7V 1400 mAh Li-Po battery Problem [SOLVED] General Electronics	11	7874	May 6, 2021