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.

Solar trickle charging nimh aa batteries. 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. I m not worried about maximum number of charging hours because sunlight isn t going to exceed 20 hours in chicago.

Then run wires from the battery to the charge connector making sure to match the positive and negative poles. You now have the complete design for your own solar charger. Assemble the solar cell. If you have a solar cell that doesn t need.

Charging nimh battery with solar. The solar panel is rated at 1 w with a max load voltage of 6 4 v and the product page is here. 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.

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. I actually tested the panel myself and found that in the best case with 90 000 lux full sun the max voltage was 5 2 v corresponding to a max current of 157 ma. Solar aa nimh battery charger step 1. Charging 12v 6amp nimh battery with solar panel.

The slightly lower voltage is not surprising because the solar charger was designed to end the charge cycle 30mv under max voltage. I haven t tested it too extensively and it s.