Simple yet functional, these SunCat Solar Batteries “are basically a set of old NiMH rechargeable batteries wrapped in a flexible Photo Voltaic cell created by the Institute for Energy Technology.” The photo voltaic cells were glued on and wired using a conductive silver pen along with flat wires.
When the batteries are drained, you simply leave them sitting in a windowsill or anywhere with ample sunlight and they’ll recharge themselves.
[via OhGizmo]
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