Battery Charger

  
This high-performance charger quickly charges gelled lead-acid batteries, and turns off at full charge. At first, the charg
Battery Charger - schematic

e current is held at 2 A, but as battery voltage rises, current decreases. When current falls to 150 mA, the charger automatically switches to a lower float voltage to keep from overcharging. When you hit full charge, transistor Ql lights the LED to indicate that status.




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