12V 4Amp Battery Charger With Auto Cut Off

In this video i will show you :- 12V 4 Amp Battery Charger With Auto cut off………….. [Over charge protection circuit ]
Simple 12 Volt Automatic Battery Charger Circuit.. This circuit is very simple and you can easily make it at your home……..In this circuit we will use a relay to cut off charging when the battery will be full.
Required components :-
Transistor BC547
Transistor BD140
12V Relay
5K Preset (POT)
Resistor 1K Ohm × 4
Resistor 68K Ohm × 1
Resistor 220 Ohm × 1
Diode 4007 × 1
Zener Diode 3.9V × 1
Vero Board


220v Ac to Dc 12v Transformerless 12v Battery Charger At Home DiY

Hi Guyz

In this video

I m going to show u

How to make 12v transformerless Battery Charger at Home

Using on Diodes and Capacitor.

It,s very simple idea to make 12v battery charger at Home Diy.

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