Charging Nimh From Solar Panel

To charge a battery with a solar panel connect a charge connector to the solar panel.

Charging nimh from solar panel.

Assemble the solar cell. For a three pack that would be 4 8 v 3 1 6 v and 125 ma 2500 mah 0 05 c 125 ma. This is pretty simple and you don t need much. For nimh cells the maximum charging voltage is 1 6 v and the maximum current rate is 0 05 c for up to 20 hours.

Here we put the solar power supply together. Solar charging for load connected nimh battery. The solar charger batteries had an average voltage of 1274mv and the duracell charger batteries had an average voltage of 1295mv. The solar panel is rated at 1 w with a max load voltage of 6 4 v and the product page is here.

Charging nimh battery with solar. Charging 12v 6amp nimh battery with solar panel. If you have a solar cell that doesn t need. The slightly lower voltage is not surprising because the solar charger was designed to end the charge cycle 30mv under max voltage.

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. I haven t tested it too extensively and it s. You now have the complete design for your own solar charger. Solar aa nimh battery charger step 1.

The battery capacity is 2450 mah with a nominal 1 2 v per cell and the datasheet is here. Then run wires from the battery to the charge connector making sure to match the positive and negative poles.