Need help making crude battery indicator light
Need help making crude battery indicator light
(OP)
I need to make a crude battery indicator light for an airsoft gun witch does not have a micro controller just both +/- wires running directly to motor. I would like it to use as little power as possible. And have it come on when the battery is fairly close to being depleted.





RE: Need help making crude battery indicator light
Assuming you solve that problem or are okay with a 'battery good' light, the only simple way to do such a thing is with a voltage comparator... but that's only effective on lead-acid batteries. You didn't tell us what battery chemistry you are using.
For actual money, you can buy IC chips that are designed to monitor batteries; see the Digi-Key or Mouser catalogs.
Mike Halloran
Pembroke Pines, FL, USA
RE: Need help making crude battery indicator light
RE: Need help making crude battery indicator light
RE: Need help making crude battery indicator light
RE: Need help making crude battery indicator light