LED 12 Volt Lead Acid Battery Meter


Posted on Feb 7, 2014

LED 12 Volt Lead Acid Battery Meter Circuit In the circuit below, a quad voltage comparator (LM339) is used as a simple bar graph meter to indicate the charge condition of a 12 volt, lead acid battery. A 5 volt reference voltage..


LED 12 Volt Lead Acid Battery Meter
Click here to download the full size of the above Circuit.




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