Two Transistors Lead Acid Battery Monitor

Posted on June 19, 2010 by Rust

The circuit of battery monitor below uses 3 separate LEDs. Voltage level between 6v to below 11v will turn the red LED on and will turn off above 11v. Between 11v and 13v will turn the orange LED on and will turn off above 13v. The green LED illuminates above 13v.
Two Transistors Lead Acid Battery Monitor circuit schematic diagram

[Source: talkinglelectronics.com]

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