12v 100Ah Automatic Battery Charge Control Circuit

12v automatic battery charger circuit is working based on IC of 555 this is the most common IC using in hobby circuits by using this single circuit diagram you can make a homemade 12 volt 100 ah automatic battery charger control system.

So in this article I am going to explain about how to make a 12 volt automatic battery charge controller circuit. This circuit contains a full charge automatic turn off system with LED indication. The two presets are are already set into low voltage cutoff and high voltage cutoff in the voltage of the battery falls below 10.5 v then the charging will be started. When the battery charge reaches to 14 volt then automatically the related of and the contact between the charger and the battery will be discontinued.

12v automatic battery charger circuit

This will protect the battery from overcharging and heating issues. Using this circuit the battery life I will also increases.

Working of Automatic Battery Cut Off Circuit

The working procedure is very easy to understand. The NE555 IC detects the voltage variation in pin number 2 and 6 will turn off and turn on the relay. While relay in the on-state the charging process will be starting. When the battery full level the relay turning off and stops overcharging. By adjusting the 20k pot can vary the charging on and cut off voltage.

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