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.
PCB Layout
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.
Can you upload the diagram and pdf file please?
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Where are the schema and project files? It’s like a notice on a fence – useless.
How many volts is surposed to be the input
12-14v dc
I love you admin for your quick response. Thanks
You are welcome
where is its pdf file
This circuit is working perfectly.
Some people are lying like someone commented above
Tnx dear.
Indika Jayaratne
SMGR – T & M
Sumathi Holdings
Colombo 03
Is 8550 npn?
8550 is pnp
What do I have to change to have a 24 volt battery charger with automatic go out?
Hello Sir…
Please, I need to 12v 100Ah Automatic Battery Charge Control Circuit
pcb-layout, components-layout, Components required
This not working
Battery full charge notoff
It is a working project
What modification is required for this circuit for 24v
This not working
Sir.
Transistor 8550 is pNP. Whereas u mentioned it as NPN in the PCB.
don’t worry the mistake only in PCB
Hello Sir…
Please, I need to 12v 100Ah Automatic Battery Charge Control Circuit
pcb-layout, components-layout, Components required
Hello Sir…
Please, I need to pcb-layout, components-layout, Components required
Thanks..