Led indicator for 12.6v battery

MrChips

Joined Oct 2, 2009
24,604
As far as I am aware there is no simple LED circuit that will do what you want.
You can do it with a pair of analog comparators which is available in one IC package.
 

crutschow

Joined Mar 14, 2008
28,158
You could use an LM3914 dot/bar display driver to give an indication of the voltage.
You can use as many LEDs as you want the desired resolution (e.g. discharged, half-charged, full charge).
 
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