12V Monitor (CB1529E )
- Details
- Published: Monday, 09 March 2020 13:54
- Written by Newton C. Braga
This circuit monitors the voltage of a 12 V battery. The indicated levels let you know if the battery is charged or not. The circuit of a 1973 publication uses indicator lamps, but it can be changed to use LEDs. The transistors can be the BC548.