Instapark® Mercury 10M Solar Panel Portable Solar Charger with Built-in Dual USB Ports for iPhone,

The solar panel is impressive and the battery is effective. However, the battery is described as 5600mAh when it is really 5200mAh, a different product. The battery's output is 1amp which is not effective for charging an iPad 3 or 4. The panel will charge the iPad 3 directly, however, in direct sun. When charging an iPad 3 directly, if a cloud passes by, the charging will be interrupted. Instapark sells a 6000mAh, 2amp battery.

I bought this specifically because it's touted as being able to charge an iPad. I've tested it now for over 6 months with iPhone, iPad, and (with adapter) AA camera batteries at several latitudes (Phoenix to Seattle) and over several seasons (summer-winter). It's performance far surpasses that of a MUCH more expensive 10w B*u*t*n model purchased at REI a year or 2 ago that I returned due to worthlessness.

As you'd expect, it works better in the summer in AZ and at higher altitude than in the fall & winter in WA & OR. Solar cells need strong sun to work well, period. It easy charges an iPhone about as fast as wall outlet in strong sun (45-80 min.). iPad performance is OK, not stellar, it does work but plan to set aside most of the afternoon (4-5+ hours in strong sun). I've really never achieved a full, 100% iPad charge but it did keep me going for extended Kindle reading at remote campsites. I have had success charging on the car dash as well.

Chinese solar cells have come a long way in price & performance in the last year or so. BTW, this model has increased 20% in price in the last few months, and I would still give it 4 stars at the higher price. It's a bit too heavy for extended backpacking (maybe on an overnighter it'd be OK, but I'd think twice before humping this brick on a long trail). The sleeve has a very handy pocket for the battery, cables and adapters, and the loops make it a cinch to hang from a tree, etc.

Summary: Well worth the purchase price, I'll give a solar panel 5 stars when it works as well as an outlet.

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Works well even in partial sunlight, charges faster than my similar panel .

Battery pack is handy too. Great for on the go .

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very effective. can charge 2 devices simultaneously. very quick at charging the battery pack that came with it. can charge battery pack while the pack charges device.

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I bought this product last December and I can't tell you how much I'm satisfied. It helps me stay in touch with my family while I'm right now in a remote area in Haiti where only the sun provides in energy. Some neighbours also benefit from it, because of its 2 USB ports.Cool to have got it!

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