Photo via press release The Joos Solar Charger makes some bold claims. First, the company states that it generates 20 times the charge of other personal solar chargers on the market. There is no data on their website showing exactly what numbers they’re measuring, so we can only assume they’re talking about chargers with similar sized solar

cells, and not personal solar chargers in general. The Joos can deliver 2.5 hours of talk time on your cell phone for every one hour of sunlight it sucks up…. Read the full story on TreeHugger

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Joos Solar Charger Tested In A Tub of Water In The Shade, Still Charges (Video)