12 Volts Car Battery Charger Circuit Schematic Diagram
Simple Electronic Applications May 13th, 2010Normally, car battery charger is a simple electronic circuit which fill up the battery every time the circuit is turned ON. If the battery is already full and the circuit not turned OFF, overcharge will be happened. Overcharge can cause the electrolyte liquid evaporates and will broke the car components.
12V Car Battery Charger Circuit Schematic Diagram
The following circuit would overcome that problem by monitoring the battery charging condition through retroactive controlled circuit which supplies high current to the battery until it is fully filled. When the battery is full, LED LD2 will be activated and turned OFF the filling circuit.
You should take note that this circuit is only applicable for 12V car battery charger. Cable used on this circuit should be the ones which capable enough to handle high current in order to prevent voltage drops.
To adjust, you need to set the TR1 into 0 and then make sure that both LED are functioned properly. When you are about to set the battery, make sure that LED LD2 in Off condition and current about 2-4 amperes. Adjust the TR1 until LD2 turn on and the current stop flowing.
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May 29th, 2010 at 9:26 am
Hey, what’s up? Great stuff. When I store my bike I always use my battery tender. It has saved the life of my battery, in fact I have not changed my battery in six years and my ride starts at a moments notice. Just a trickle charger is not enough you need to use the tecnology of the battery tender.
September 17th, 2010 at 12:14 am
This is a vary helpful side. Please give car battery charger circuit diagram.
September 23rd, 2010 at 2:26 am
May I know components name and value of 12V Car Battery Charger Circuit Schematic Diagram.I want to desing these circuit.Help me, please.
October 18th, 2010 at 9:03 am
Hello mate,Grate Diagram =].I have a car charger(bought new)an its not working right now.im trying to figure it out and fix the issues.As far as i can tell,with my multimeter- checking continuity an diodes are working,its ok?.but it will not charge past the original battery voltage.i had the charger plugged into the mains an attached to a battery( flat )when i removed the charger clip with the multimeter attached,the voltage slowly dropped.i tried the light bulb test,the light did not come on.an i have checked the fuse is in one piece.when i touched the two terminals together(after it was broke)-nothing,not a spark.LED shows battery attached an charging.. but does not charge. can you help identify a problem area it could be.