Solar Powered Battery Charger
This is a great idea. Here’s Amazon’s product description:
This unit will charge four equivalent sized batteries at any one time.
It includes an adjustable stand to assist in positioning for the best
angle toward the sun. Can also be used indoors when placed in direct
sunlight through a south-facing window. Bright sunlight is not
necessary for this unit to work properly, but it obviously works faster
when available. Overcast days are fine but it increases the time
necessary to recharge the batteries completely.
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