How to power ESP32 Using Battery

Question

Currently making a project using ESP32. I just want to know that how can I use ESP32 without USB plugin in to laptop/PC. How to do it using Battery?

Answer 1

There are lots of ESP32 development boards available. Which one do you own?

Most common solutions to power your ESP32 are:

1. Via the USB port.

2. Using unregulated voltage between 5V and 12V, connected to the 5V and GND pins. This voltage is regulated on-board.

3. Using regulated 3.3V voltage, connected to the 3.3V and GND pins*

*By using the 3.3v pin you must be extra careful and not exceed the 3.3V limit, or your ESP32 module will be damaged.

Answer 2

You can do that using rechargeable lithium batteries like 18650 or other 5V accu packs. I use in this case a power bank. But be aware, wifi decreses the lifetime enormous.