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  • Competition Solar 7-Watt Amorphous Solar Power Battery Charger
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Competition Solar 7-Watt Amorphous Solar Power Battery Charger

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List Price: $49.99
Price: $34.01 & FREE Shipping on orders over $35. Details
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  • Rated up to 7-watt / 583mA per hour of sunlight
  • High quality amorphous thin film solar technology maintains high performance even in cloudy, hazy and indirect light
  • A built-in blocking diode prevents power loss at night
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Frequently Bought Together

Competition Solar 7-Watt Amorphous Solar Power Battery Charger + Sunforce 7 Amp Charge Controller + Battery Tender 081-0069-6 Ring Terminal Harness with Black Fused 2-Pin Quick Disconnect Plug
Price for all three: $55.18

Buy the selected items together


Product Details

  • Product Dimensions: 15.8 x 12.5 x 0.8 inches ; 3 pounds
  • Shipping Weight: 3.8 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Origin: China
  • ASIN: B008GUHBEO
  • Item model number: 41007
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (9 customer reviews)
  • Amazon Best Sellers Rank: #69,629 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

The 7-watt Competition Solar panel helps keep batteries full charged. This portable panel is great for keeping RVs, boats, cars, an ATV batteries charged. The amorphous thin film solar panel technology maintains high performance even in cloudy, hazy and indirect light. Its simple to install basically just hook up its cables to your battery. Extra power and performance for all your charging needs. 15.74-in x 12.5-in x .75-in. Weight 3 lbs.

Customer Reviews

4.2 out of 5 stars
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Most Helpful Customer Reviews

9 of 10 people found the following review helpful By WarmInWinter on March 7, 2013
I bought 28 of these panels (not on Amazon) and I think they're an amazingly good panel for the money. They are amorphous which means they charge in diffused sunlight not just direct sunlight.

I set up three of them on the deck in February on an overcast day and hooked them up to a discharged car battery. With my voltmeter I could tell they were putting out around 24 to 25 volts each and sure enough, the battery went from 10.4 volts (way too dead to even turn over the engine) to 12.5 volts (fully charged) by evening.

With solar panels it's dollars per watt that counts for comparison. Right now, anything that sells for about 2 bucks per watt is a good deal which is what I paid for mine. I could have bought two 100 watt panels, but I'm planning on putting my panels on roof mounted tilting axis poles so they can track the sun, and these panels are only 16" wide so the pole can be mounted very close to the roof and still get a high degree of tilt in either direction for tracking, but still be low enough not to get blown off by any nasty winds.

And panels are easy to link. Just connect the wires together in parallel (all the red wires to one big wire, all the black wires to one big wire) to increase your amperage. Each one puts out .58 amps so my 28 panels should provide just over 16 amps of charging power - with a charge controller in line that will be plenty to fast charge a couple of deep cycle batteries and run lots of small appliances with an inverter.
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2 of 2 people found the following review helpful By Yevgeniy on March 7, 2014
Verified Purchase
Got this today. Seems to be made well, no issues with shipping. I got it at around 4:30pm Michigan time, put it on the kitchen table and hooked up a volt meter to the clips and the meter showed the putting our around 4volts, took it next to a window, went up to around 14, went outside and got around 22. May not put out the 24 that it's rated for, but this leads me to believe that I will have no problems getting that when it's sunny out.

Wire quality seems pretty good. If there are any issues going forward or if I learn anything new about this, I will try to update this review.
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1 of 1 people found the following review helpful By anonymous on March 22, 2014
Verified Purchase
In direct, bright sunlight I can get almost 5 watts and the blocking diode leaked. The panel is big for its claimed output and even bigger for its actual output. But, it was easy enough to add a small diode and the battery clamps make it easy to clip it to my lawn mower so maybe I can get another season out of the battery.
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By George X on July 7, 2014
Verified Purchase
just what was looking for.
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I will be buying more of these as they exceeded my expectations. I was not expecting much since the price point was so low.

If one is looking for a solar trickle charger for their rv or boat deep cycle batteries I highly recommend this one.
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