Charging Nimh From Solar Panel

Solar trickle charging nimh aa batteries.

Charging nimh from solar panel.

The slightly lower voltage is not surprising because the solar charger was designed to end the charge cycle 30mv under max voltage. The battery capacity is 2450 mah with a nominal 1 2 v per cell and the datasheet is here. I m not worried about maximum number of charging hours because sunlight isn t going to exceed 20 hours in chicago. Solar charging for load connected nimh battery.

For a three pack that would be 4 8 v 3 1 6 v and 125 ma 2500 mah 0 05 c 125 ma. Then run wires from the battery to the charge connector making sure to match the positive and negative poles. I haven t tested it too extensively and it s. This is pretty simple and you don t need much.

To charge a battery with a solar panel connect a charge connector to the solar panel. Charging 12v 6amp nimh battery with solar panel. Assemble the solar cell. Solar aa nimh battery charger step 1.

Divide the wattage of the solar panel by the voltage of the battery to get the number of amps your charge connector needs to handle. Charging nimh battery with solar. Here we put the solar power supply together. The solar charger batteries had an average voltage of 1274mv and the duracell charger batteries had an average voltage of 1295mv.

You now have the complete design for your own solar charger. If you have a solar cell that doesn t need.