Simple 1.2V AA battery Solar charger circuit

This is simple 1.2V AA battery Solar charger circuit. If you want to charge only one 1.5V AA battery and must used at outdoor that don’t has home electricity. We will also use fast it so we need to application devices near us.

This projects is very easy and cheapest because we use a solar cell 3V 160mA and I measure voltage about 3.3V as Figure 1 so enough for charging.

measure voltageof solar cell about  about 3_3V

And I will use AA 1.2V 700mAh Rechargeable Nickel metal Hydride Battery.

In addition, we need to have a diode. To prevent reverse voltage from a battery to the solar cell when no sunlight.

We use a number 1N4007 diode because it is cheaper and high pressure 1000V 1A general enough to use it.
circuit-diagram-of-aa-1-2V-Rechargeable Nickel metal Hydride Battery
AS Figure 2 we connected them in series are simple circuit.

We will take a charge of about 8-10 hours, or about 8.00 to 17.00 clock.
It will have full power, can measure voltage of approximately 1.3V. as Figure 3
aa battery is charged fully


  1. thomas July 16, 2014
  2. JUDE October 7, 2014
  3. momename October 9, 2014
  4. Sean Straw January 12, 2015
  5. nicole October 26, 2015
  6. sandeep February 26, 2016
  7. Jan Wixon November 11, 2016
  8. Doug Scherer January 9, 2017

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