Batteries eventually need to be replaced. That’s the way we’ve been living for decades, so shelling out the cash for batteries just seems like something we have to do. The SunMod Modification Kit ensures that you’ll never have to replace your batteries again. For a very reasonable $20, SunMod turns any of your AA or AAA battery powered devices into solar-powered gadgets.
Part DIY, part world saving, all you need to keep your gadgets powered are the SunMod kit and a few rechargeable NiMH batteries. The sun handles the rest, without the need of any electric charge. Included in the kit is “a flexible solar cell 4.8V with soldered metal connectors.” Get your own for $20 each.