XIAO ESP32C3 two AAA batteries (3V each) connected to the Li-Po terminal

Products & Technology XIAO
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#1

If a power supply is not connected to the USB and 5V terminals, is it possible to connect a 3V (1.5V x 2) dry cell battery to the Li-Po terminal and use it?

#2

one problem is low voltage brown out… the AAA batteries dont hold the required voltage like the Lythium do

1 Like
#3

Would lithium AAA also brown out?

#4

Hi there,

So I would do something like this if it were me.

0J1158.12001
0J1158.120011200Ă—734 82.6 KB

they sell just the boost regulator small board 1.8 to 5v adjustable output too.
I would grab a two cell holder if that’s what you want and hot glue the tiny pcb Booster to 3.3v the bottom like they do. :+1:
HTH
GL :slight_smile: PJ :v:

#5

Would adafruit 1A 5v booster work just fine for 2 AAA?

#6

Hi there,

So,The ESP32-C3 chip works with a voltage range of 3.0–3.6 V. The recommended voltage for a single power supply is 3.3 V, with an output current of at least 500 mA.

just follow the data sheet.
GL :slight_smile: pj :v:

1 Like
#7

you cant make power where it does not exist… this is a simple power calculation… boost or buck converters are just transormers… they can only convert voltage to current or vice versa… but cannot create power