Page 1 of 1
Charged battery indication
Posted: Sun Jun 25, 2017 10:29 am
by tonda2
Hi everyone,
I want to make a simple device, which would light a led when my lipo is charged (input is above 4.1V). It should be as small as possible. Does any of you have some good schematic for this? Thanks.
Re: Charged battery indication
Posted: Sun Jun 25, 2017 11:01 am
by tonda2
Could I use this circuit but with 4V zener diode?

- low voltage.jpg (18.41 KiB) Viewed 4745 times
Re: Charged battery indication
Posted: Sat Jul 01, 2017 2:51 am
by Boydee
tonda2 wrote: ↑Sun Jun 25, 2017 10:29 am
Hi everyone,
I want to make a simple device, which would light a led when my lipo is charged (input is above 4.1V). It should be as small as possible. Does any of you have some good schematic for this? Thanks.
Well I think it would depend on what powerboost your using? (Assuming your using a powerboost) You should just be able to tap into that, because the Adafruit ones and the banggood ones have charge indicators