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Sunforce 50022 5-Watt Solar Battery Trickle Charger

| 25 answered questions

List Price: $69.99
Price: $54.99 & FREE Shipping. Details
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  • Creates 5 watts of electricity for charging and maintaining 12-volt batteries
  • Works with automobile, tractor, electric fence, deer feeder, boat batteries and more
  • Made of durable ABS plastic and amorphous solar cells
  • Weatherproof amorphous panel charges in all daylight conditions-even on cloudy days
  • Includes 15" x 14-1/2" amorphous solar panel, 4 pre-cut holes for easy installation, 4 stainless steel screws, 9.5 ft wire, 12V DC plug, battery clamps and Quick Connect technology
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3 new from $54.99

Get the Right Gear for Your Needs in Our New Sunforce Store
Get Solar Info and More in Our New Sunforce Store
Our new Sunforce Store has the information you need to get started with solar and wind power. Check out helpful installation videos, guides, and a solar calculator that can help you build a customized solution that will meet the power requirements of your gear.

Frequently Bought Together

Sunforce 50022 5-Watt Solar Battery Trickle 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: $78.35

Buy the selected items together


Product Information

Technical Details
BrandSunforce
Item Weight3 pounds
Product Dimensions17 x 13 x 1.2 inches
Item model number50022
Manufacturer Part Number50022
  
Technical Specification
Additional Information
ASINB0006JO0TC
Best Sellers Rank #1,939 in Automotive (See top 100)
Shipping Weight5 pounds (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
Date First AvailableAugust 29, 2004
  
Warranty & Support
Warranty, Parts: Parts
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Product Description

Amazon.com

The Sunforce 50022 5-Watt Solar Battery Trickle Charger gives you another reason to love the sun--it can help keep your vehicle's battery charged. It provides up to 5-Watts or 350mA of power to prevent the natural voltage drain of batteries over time. It includes both a lighter socket adapter and alligator clips to give you flexible connection options.


The Sunforce 5-Watt Solar Trickle Charger is compact and easy to install.
Convenient Power That Helps Keep Your Batteries Charged
The Sunforce 50022 5-Watt Solar Battery Trickle Charger lets you harness the power of the sun, the most powerful and plentiful source of energy available to us. Unlike nuclear and fossil fuels, solar power is clean and pollution-free, and the equipment requires very little maintenance to operate.

This trickle charger is designed to stave off the natural voltage drain that 12-Volt batteries undergo over time. It can also maintain the charge of a 12-Volt battery while it is providing energy to small electronics like cell phone chargers or small pumps and motors. The Sunforce 50022 5-Watt Solar Battery Trickle Charger is constructed with durable ABS plastic and features amorphous solar cells and an ultra-bright blue LED charging indicator. Four mounting holes are pre-cut in the frame for easy permanent installation. It is weatherproof and remains effective even on cloudy days. The built-in overcharge/discharge protection prevents overcharging and reverse-current drain. This trickle charger is an ideal choice for automobiles, recreational vehicles, all-terrain vehicles, tractors, boats and more.


Sunforce Solar Panels are effective in areas of both high and lower
sun exposure, making them ideal for use in the United States.
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About Amorphous Solar Power
Solar panels convert sunlight into an electric current, they do not store power. Amorphous solar panels are created by spraying silicon onto glass in very thin layers, and are commonly known as thin film solar panels. This process allows them to be better at generating electricity in all lighting conditions, including cloudy or shady environments. They have a maximum operating temperature range of -40 to 176-degrees Fahrenheit, requiring virtually no maintenance. They can even withstand impacts from one-inch hailstones at 50 miles-per-hour.

The Sunforce 50022 5-Watt Solar Battery Trickle Charger is designed to maintain an existing battery charge, and not to fully recharge a battery. It can remain connected to a vehicle battery at all times and will not adversely affect its operation or electrical components. Unless the trickle charger is permanently mounted, you should remove and store it to prevent physical harm while the vehicle is in motion.

Product Description

The Sunforce 50022 5-Watt Solar Battery Trickle Charger gives you another reason to love the sun - it will help keep your vehicle's battery charged anywhere, anytime. Just plug this helpful 5-watt trickle charger into your vehicle's 12-volt lighter socket and position the panel to pick up the most daylight possible. Or, if you prefer, use the included battery clamps to connect it directly to the battery, so you can keep your lighter socket open for cell phone chargers or other accessories. Regardless of how you hook up the battery charger, you'll never get caught off guard without the juice you need to start your car. The amorphous solar panel is completely weatherproof, charges in all daylight conditions and has an integrated blocking diode that protects against battery discharge at night. The 50022 is the ideal choice for automobiles, recreational vehicles (RV), tractors, boats, electric fences, telemetry and more. It has a maximum power output of 5 Watts and 350Mah. With a maximum temperature range of -40 to 176-degrees Fahrenheit, this unit measures 14 x 0.75 x 13 inches (WxHxD) and weighs 4 pounds.


Customer Questions & Answers

Customer Reviews

I think my experience with this product is ridiculous.
Bill Carmine
The solar panel has a plastic frame but the middle is unprotected on the back (and front).
El Marco
Now it starts right up every time, even after a couple of weeks sitting idle.
Missy DeYoung

Most Helpful Customer Reviews

231 of 235 people found the following review helpful By Tab Numlock on June 29, 2007
Verified Purchase
I live on a river and built a campsite on an island across from my house (the dog loves it). I bought a deep-cycle marine battery but am getting too old to lug it in and out of the canoe for charging. So I got this little panel and, so far, have not run out of juice. And it's cheap enough so if someone steals it it's no big tragedy. I run a laptop, TV, fluorescent light and charge my cell phone. I even have a 12v car-vac to clean the sand out of the tent.

Of course, I'm not there 95% of the time so 5 watts is probably adequate. And I don't have to worry about overcharging. I screwed it to a big log in pretty open sun. So far, it has survived, even some small hail.

BTW, I use the power cord from an old vacuum cleaner and a 4-way 12v splitter to distribute power from the battery.
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118 of 120 people found the following review helpful By Amazon Consumer 40+ on November 8, 2007
In 2006 I took a 3 week vacation out of the country. I left my car at the airport and away I went. Upon my return, I had to have the battery boosted for 15 minutes before it would turn my car's engine on. I have no idea what caused the drain (Sattelite Radio memory, car's other computers, etc), but I had to do something to prevent a $50.00 boost call in the future. A coworker told me about these devices and how his brother uses them to keep his mobile home powered when parked. Higher wattage products are sold, but if all you're doing is keeping a car battery charged, 5 watts is plenty of power for the job. No other devices (charger controllers) are needed. The charger comes with a couple of ways to hook up to the battery (direct battery terminal clips, cigarette lighter plug). I used the cigarette plug. Just plug it in to the power port, and lay the solar energy collector side face up on your dashboard. For those with heavily tinted windshields, I have no idea if the tint would cause a problem with the panel's energy collection.

This year, after returning from another 3 week trip (and using the solar charger), my battery started better than it did before my trip to the airport!
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189 of 200 people found the following review helpful By El Marco on June 13, 2007
Verified Purchase
I recently ordered one of these panels (June 2007). The first one arrived shattered - the manufacturer packaging does not protect the panel much and it was inadequately packaged in the shipping box by Amazon. The replacement unit was also badly packaged for shipment.

I tested the electrical output in full sunlight and got 20V out into a 100 ohm load -> 4 watts which is pretty good.

One thing to consider though is that this product is not very rugged. The solar panel has a plastic frame but the middle is unprotected on the back (and front). So unless you handle it very carefully it is likely to break.

Someone using this on a car dashboard would need some sort of protective carrier (like those insulated pizza boxes) to protect the unit when it was not being used.

------------ Update Dec 2007 ----------------

Panel stopped producing electricity in November. Had to send it in to Sunforce at my expense for warrantee replacement. They promptly tested it and sent me a replacement. One thing I did notice is that the plastic housing on the unit that I returned had developed some small cracks. I am using the unit on my car dashboard to keep my battery charged.

------------ Update Jan 2013 ----------------

The frame around the panel has warped and cracked. As a result the panel no longer reliably charges my battery. This product isn't really engineered for reliable operation on car dashboards - the plastic / frame cannot deal with the extreme temperature changes over time.
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43 of 45 people found the following review helpful By Phil W on April 12, 2010
The unit was installed atop an RV to maintain the two (115 Amp-Hrs each) House Batteries while the vehicle is in storage. The batteries are connected in parallel, and the 5-watt unit has been doing an excellent job of maintaining the batteries at 13.32 volts. I am astonished that the manufacturer chose the BLACK color for the plastic frame. A quick test by placing the unit in the Arizona sun (in early April!) showed that the black plastic frame quickly got too hot to be touched. I carefully masked the solar array area and spray painted the frame with white Kilz spray paint. What a difference! The frame stays cool to the touch and the unit has been mounted on the roof of the RV ever since, performing flawlessly.
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51 of 57 people found the following review helpful By bobthedog on January 26, 2007
Verified Purchase
This unit has consistently performed _better_ than it is rated for. It routinely generates over 140% the rated voltage - and even generates the Rated Voltage on overcast days. A *streetlight* at night caused it to generate a measurable voltage (~50% rated, as I recall). Also, it is weather/hailstone resistant. I am very pleased with the performance of this item.
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25 of 26 people found the following review helpful By Steve Fleischman on July 30, 2007
Performed as stated. Keeps my deep cycle marine battery charged. When I
leave my boat after sailing for 2-3 hours my 12V LED volmeter reads system
at 11.85 volts and the next day it is charged to 12.80 after receiving sun
for 10hrs. Tops it off - trickle charge as stated.
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32 of 35 people found the following review helpful By JN on February 13, 2008
Verified Purchase
I have a 98 Camry that is rarely used, and often when I tried to use it, the battery had been drained (not sure by what) to the point that the starter would only make clicking sounds. Since I have hooked up the Sunforce 5watt trickle charger the car starts up every time! Very cool product.
My only complaints would be that it is a bit large, but still rests on the dash when the car is parked, and I had to connect direclty to the battery (with provided clips) since the cigarette lighter is turned off when the ignition is off - but I just ran the wire around the door frame and under the hood.
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