12V Battery Checker Circuit


Posted on Feb 4, 2014

This is a 12V battery checker circuit that uses 3 LEDs that light up at their respective voltages. The red LED lights up when the battery voltage is between 8 to 10V, the orange one at voltages between 10. 5V to 12V and the green one when the battery voltage is above 12. 5V. This is a tried and tested battery checker circuit using one NPN and one PNP


12V Battery Checker Circuit
Click here to download the full size of the above Circuit.

transistor. A PCB is given along with the schematic.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Fast Battery Tester
Telephone Line Simulator Schematic
DC-Coupled Audio Amplifier Circuit
200 watts amplifier using tda2030
555 timer IC Inverter circuit schematic 12V to 220V
Audio AmplifierCircuit - 30 Watts
Fully Parametric Tube EQ (with gyrators)
8051 Development System Circuit Board 3



Top