GoldenGadgets.com has the Portable Hybrid Solar Charger for Blackberry, iPhone, Nokia, etc for $20 + $3 shipping = $23 shipped. Solar Panels have charge and maintain the built-in 2000 mah Lithium ion battery inside, providing USB spec power for your devices.
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can this be used with iphone?
dunno.can't even get the page to load! Ben-Effect going on, or what??
How the hell is this a "hybrid" of anything? Is that so rodeo cowboy know electricity is involved?
#3, presumably hybrid means either you get power from the sun or USB to recharge the internal battery.
As always GoldenGadgets specs are full of it. Their 2000mAH battery is not going to be behind a sophisticated buck circuit to increase current and the spec on the solar panel is 130mA @ 5.5V
Therefore, it is impossible to recharge the battery in even 10 hours of the brightest sunlight, and most people will find the current in typical sun for 10 hours would be less than half of that. Figure several days out in the sun to recharge it.
As for USB recharging, again deceptive specs. At the max current of USB at 500mA, charging cannot finish in 4 hours. No battery is 100% efficient at charging and this will charge much slower towards the end being closer and closer to the 5V input from the USB, if it can even fully recharge at all.
Basically this product is a waste, get a plain old portable power battery pack if you need one, instead of wasting money on the ineffective solar cell or pay a lot more for a properly designed (and much larger, the current required for timely charging requires a substantially larger cell(s)) alternative solar charging product. Keep in mind that you can buy a plain old pack then buy a separate solar panel and velcro, epoxy, cement, etc, it onto any pack you want (or make yourself) simply adding a diode in series to the battery, and since the solar panel would tend to be larger than the pack, you might consider mounting it on a piece of UV resistant polycarbonate so it doesn't get very hot and is crack resistant, to aid in protecting the solar cell from bending since most in good price:performance ratios are brittle crystaline types.
Then again you could just do something novel and buy a 2nd or 3rd phone battery instead.