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Can anyone here recommend a good, simple 12v low-voltage cutoff? (lemmy.fmhy.ml)
submitted 1 year ago by chick3n@lemmy.fmhy.ml to c/askelectronics@discuss.tchncs.de
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I've been looking for a simple low-voltage cutoff circuit for a 12v SLA battery, but many of the ones I find have reviews saying that the protection circuit itself drains the battery slowly as well. Is this just inherent in the design, where it has to draw a little to measure the voltage, or are there low-voltage cutoffs that don't draw anything until the battery is recharged?

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[–] sweafa@discuss.tchncs.de 1 points 1 year ago

i would probably do some circuit with a TL431 and FETs, but this also drains some small amount of battery current.