Hi,
i have a very simple automatic 12 volts battery charger and working very well in a real application.
it's perfect to charge 12volts 12AH SLA batteries.
i didn't designed this circuit(as i'm pretty beginner in Electronics !) but i draw this circuit diagram from a real PCB
now i need some modification , so hope experts help me :
1-i need to add 2 LED's to this circuit first LED to indicates charging and second LED to indicates battery full charge
2- when the main fails or unplug for a long time(for example 1 or 2 months !) the circuit will drain the battery , i think we can not use diodes because circit can not detect battery voltage (because diode will block battery current to come back to the circuit)so its automatic behavior will not work.
any solution and modification will be appreciated.
sorry for Bad English and Thank all of you.
i have a very simple automatic 12 volts battery charger and working very well in a real application.
it's perfect to charge 12volts 12AH SLA batteries.
i didn't designed this circuit(as i'm pretty beginner in Electronics !) but i draw this circuit diagram from a real PCB
now i need some modification , so hope experts help me :
1-i need to add 2 LED's to this circuit first LED to indicates charging and second LED to indicates battery full charge
2- when the main fails or unplug for a long time(for example 1 or 2 months !) the circuit will drain the battery , i think we can not use diodes because circit can not detect battery voltage (because diode will block battery current to come back to the circuit)so its automatic behavior will not work.
any solution and modification will be appreciated.
sorry for Bad English and Thank all of you.
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