12V battery chager how to make?

It provides 12 5 and 5 Amps current for fast charging of battery. If the battery is partially discharged, complete charge will be achieved in 1 hour.

The circuit utilizes a 0-14 volt 5 Ampere Step down transformer and a 10 Amps Bridge rectifier module to convert AC into DC. Since pulsed DC is fantastic for Lead Acid battery, a minimal value smoothing capacitor can be used as C1 to track the charging position, Ampere meter is offered in the positive rail. LED behave since the Charger on standing.

After the output is on the battery terminals, the tube indicates a greater reading based on the current flow to the battery. Since the battery accomplishes full control, its terminal voltage climbs into 13.8 volts and current through the tube stops. The meter reading leads to zero. This shows the entire charge condition and the charging could be resumed.