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24v Automatic Battery Charger Circuit Diagram circuitsgallery 2013 04 automatic battery charger This is a simple DIY charge controller schematic posted in response to a request by one of our readers on our facebook page The main component of this auto battery charger circuit is a 555 timer which compares the voltage in the battery It turns ON the charger if the battery voltage is below the variable preset voltage 12 volt chosen here and turns OFF the charger if the voltage reaches 13 24v Automatic Battery Charger Circuit Diagram circuitdiagram battery charger circuits htmlA good designed circuit of a Alkaline battery charger The interesting thing of this circuit is that it uses a led that will show the charge of battery by blinking when you connect a totally discharged battery the LED blink faster but when the battery charging process starts the LED blinking speed will dicrease slowly and completely stop when the battery will fully charged batteryreconditioningezdiy battery char...