A couple of weeks ago I bought a FreeLoader solar battery which is expressly designed to recharge your little tech gadgets. This week, I added a supercharger to it (that’s the large green thing). The whole kit itself costs about £50.
It’s not terribly sunny here but the freeloader battery charges in about 8 hours by itself and in about 3 hours with the supercharger. This battery will then (in turn) provide about a half-charge to a Nokia N800 or iPhone 3G.
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Having the unit in direct sunshine charges it quicker, having it behind glass in my living room (which is sheltered) makes it recharge much slower. You can also fast-charge it over USB which you would think defeats the purpose but this is about being able to get your gadgets power when you need it.
I think this kit will be very useful during the next few weeks and after that I’ll be looking at a bigger project. Like powering the TV at home.
Oh, it also comes in pink.