Automatic 12v Battery Charger Circuit | Auto Cut OFF & ON

Automatic 12v Battery Charger
Automatic 12v battery charger

Automatic 12V Battery Charger is used to charge 12v Battery. This charger controls the battery over charge. This charger automatically cuts off the maximum voltage of the battery when it reaches. Charges the battery when the battery is low voltage.

12v Battery charger Circuit Diagram :

I designed a Circuit Diagram From Easy Eda Site

Components Needed :

  • LM555 IC – 1
  • 7809 IC – 1
  • 12v Relay – 1
  • 1n4007 Diode – 1
  • RED LED – 1
  • Green LED – 1
  • Rectifier – 1
  • 1k Resistor – 3
  • 10k resistor – 2
  • 10k preset – 1
  • 50k preset – 1
  • 2k7 Resistor – 1
  • 5k6 Resistor – 1
  • 220 ohms resistor – 1
  • 470uf Capacitor – 1
  • 104 Disc capacitor – 1
  • 5v1 Zener Diode – 1
  • 2pin Screw Connector – 3

Tools Needed :

  • Soldering Iron
  • Soldering Iron Stand
  • PCB Holding Stand
  • Cutter

PCB Layout :

Gerber & PDF Files :

Make Video :

3 Comments

  1. Madhusoodan December 22, 2020
  2. ashok kumar arora January 13, 2021
  3. Jordi May 15, 2021

Add Comment