Re: Battery Indicator


Chris W wrote:
Since I didn't get any replies to my "Voltage Cut off circuit" post,
here is plan B. How about a circuit with 3 to 5 small LEDs of various
colors that would each come on at a different voltage. That wouldn't be
too hard to make would it? I would have some kind of momentary button
to activate it so it didn't run the battery down all the time.


You can use a LM339 comparator and some resistors and zener diode to
indicate 5 voltage ranges. Here's an example for a 12 volt lead acid
battery.

http://ourworld.compuserve.com/homepages/Bill_Bowden/page11.htm#meter.gif

-Bill


--
Chris W
KE5GIX

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