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Showing 1-6 of 6 reviews(Verified Purchases). See all 7 reviews
on April 21, 2013
I use this solar panel to charge my camera batteries while backpacking. The Powerfilm R7 works really well for this purpose. I can typically charge my camera battery at home in about 3 hours. This panel can charge the battery in slightly less than 4 hours if I am constantly monitoring the angle of the panel to the sun. On a typical backpacking day this is not practical though. With the panel strapped to my backpack it takes most of the day to charge 1 battery. On a backpacking trip I typically use two batteries every three days. Thus, this panel is sufficient for my needs.

When I was researching solar panels I also tried the Goal Zero 12301 Nomad 7M Solar Panel. One would think from the title that the Nomad 7 was an equivalent unit. However, while it did work really well, it was unable to charge my camera battery. Looking at the fine print, the power output of the Nomad 7 is only 2 Watts on the 12 Volt port. The Powerfilm panel is rated at 7 Watts; however, I have only ever been able to get 6.5 watts from it. This requires the panel to be perfectly flat; and, to be oriented perpendicular to the sun's rays. The Goal Zero Nomad is also heavier, which is a consideration for backpacking.

The one drawback to this panel is that it is quite large at 14.5 x 23 inches. I covers the entire backside of my pack. I use four Nite Ize SBP0-2PK-01 S-Biner Plastic Size-0 Double Gated Carabiner,Black, 2-Pack to connect the panel to my pack.

In terms of durability the panel is very tough. I leave it strapped to my pack most of the time. I am careful not to drop the pack right on the panel; however, it has tipped over several times and continues to function just fine. When it rains I often roll the panel up (powerfilm says no tighter than 3 inches) and the raindrops don't seem to affect it. If the temperatures are below freezing I try and make sure that there isn't any water on the panel. However, it has been covered in frost several times with no apparent damage.

All-in-all I strongly recommend the Powerfilm Solar Panel for a backpacking solar charger.
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on April 4, 2013
It works very well, if the sun in out (yes I know it's a solar panel)... What I mean, is... If there is light cloud cover it's hit or miss.

Very durable: I'm in the army, and I've taken this out to the field and deployments several times... It's been beat all to heck, I wip the dust off... Keeps on working!
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on October 1, 2011
I bought this as a gift for my sister who went on a trek to base camp 1 in Nepal (at Mount Everest). She used it to charge her electronics and said that it travelled well and worked like a charm.
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on August 21, 2013
I purchased my first PowerFilm three or four years ago. And, I just bought another one this summer for a different boat. Overall it does what it's suppose to do, produce 7 watts of electricity to keep your battery charged. I bought mine for my small 21' sailboat. After four years the charger is looking a little rough, but it has lasted longer than the battery it was charging. The only complaint I have is about the hooks that attach the film to the deck of the boat. They come loose and they break. I've had to glue them down and even that fails after time.
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on February 22, 2014
I had to trim the white edges a bit, add a grommet, and change the connector. But this photocell is now permanently mounted on the turtleneck of my homebuilt airplane and I like it! Though it doesn't generate a ton of electricity, it generates enough to keep the batteries in my communications radio charged and operate my GPS. And it works even when the engine is off!
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on May 31, 2016
This is consummate rubbish. Won't even charge an iPhone. Useless.
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