Solar power battery charger

Last Updated on March 16, 2024

       You can use this circuit to charge your SLA battery from the solar power, This circuit build with 9V solar panel and LM317 adjustable voltage regulator.

You can vary the regulation voltage level according the SLA battery voltage, here 3A,50V schottky diode used for protection from reverse supply.

Circuit diagram


Components List

S.No Name Quantity
1. 9V solar panel 1
2. IC LM 317 regulator 1
3. SLA battery 6V/4.5Ah 1
4. Diode 1N4007 1
5. Resistor 220Ω, 680Ω 2KΩ preset each 1
6. Capacitor 0.1µF 1
7. Schottky diode 3A,50V 1


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