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The best portable solar battery charger
By Mark Smirniotis This post was done in partnership with The Wirecutter, a buyer's guide to the best technology. Read the full article here. After considering 70 models and testing portable solar battery chargers for over 30 hours, we think the Anker PowerPort Solar Lite is the one to get if you need to power a small device in an emergency or off the grid. It can fully charge most phones at nearly full speed with less than a day's worth of sunlight.
Scosche solBAT II collects solar power, distributes it to USB devices
Solar-charged batteries aren't exactly wow factors these days, unless they're dirt cheap like this Scosche solBAT II. With 1,500mAh of juice, this dongle can carry slightly more power than your average smartphone, and can also take any device with a USB cable. However, before you fork out $29.99 to Scosche, you should know that the solBAT takes between four to five days (!) to charge up fully under sunlight -- not ideal for most power-hungry smartphones nowadays. There's always the $93.23 Energizer SP2000 (2,000mAh) for your consideration -- it's bulkier, but with three solar panels it only needs six hours of solar-charge time. Guess we'll just take the faster one, thanks.
SunCat batteries boast built-in solar charging wrappers
Solar chargers are a dime a dozen, but who honestly feels like carrying around rechargeable cells and a recharger? Guru Knut Karlsen has conjured up a far superior idea, and rather than just working up a few drawings and making us all feel dumb for not thinking of this first, he went out and proved that solar-charging batteries are definitely ready for production. In essence, he wrapped four C size NiMH rechargeable batteries with a few samples of flexible solar cells; by using a conductive silver pen and some flat wires from a broken Canon lens, he made a connection solid enough for trickle charging to occur. Moving forward, he'd like to install a capacity gauge as well as a method for faster charging, but we'd say this ain't half bad for a first attempt.[Via Inhabitat, thanks Sarvesh]
