|Item Weight||1.4 pounds|
|Product Dimensions||19 x 6 x 1.2 inches|
|Item model number||50012|
|Manufacturer Part Number||50012|
Sunforce 50012 1.8-Watt Solar Battery Maintainer
|Price:||$17.48 & FREE Shipping on orders over $49. Details|
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- Charges 12-volt batteries and creates 1.8 watts of energy
- Works with automobile, motorcycle, tractor, boat batteries and more
- Made of durable ABS plastic and amorphous solar cells
- For indoor use--solar panel is not waterproof
- Built-in blocking diode to prevent reverse discharge
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From the Manufacturer
Convenient Power that Helps Maintain your Batteries
Sunforce 1.8 watt, 12 volt Solar Battery Maintainer
No more battery drainage with the Sunforce 1.8 watt, 12 volt solar battery maintainer! Whether you are storing your car during the winter months or leaving your vehicle unused for long periods of time this solar battery maintainer will ensure your engine always starts.
The ideal choice for cars, boats, SUVs, tractors and more!
Easy DIY Installation
Just plug the 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 the panel directly to the battery. Regardless of how you hook up the battery maintainer, you'll never get caught off guard without the power you need to start your vehicle.
Includes: Suction cups for mounting, battery clamps, and 12 volt DC plug.
Connects to 12 volt battery.
Quick connect technology.
Fully weatherproof design.
Maximum power output: up to 1.8 watts, 120 mA.
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. Amorphous solar panels have a maximum operating temperature of -40 to 176 degrees Fahrenheit, requiring virtually no maintenance.
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Top Customer Reviews
I performed my tests in December, when the sun is at its lowest in the sky and the days are shortest(unless you live in Australia, then forget what i just said) . I live in northern California, which isn't ideal for solar, but is much better than many parts of the USA in terms of daily solar energy received.
Performance on an OVERCAST December day, near solar noon:
-Voc or open circuit voltage was 13.3V
-Isc or short circuit current, a whopping 1.8mA
-Charging current to battery was 0.18mA. The battery was at 12.0V at the time.
Performance on a SUNNY December day, near solar noon:
-Voc or open circuit voltage was 20V
-Isc or short circuit current was 60mA behind the car's windshield. Pointed directly at the sun and not behind glass, the panel managed 87mA.
-Charging current to battery was 50mA. The battery was at 12.0V at the time.
My sunny measurement was taken 3 days after the overcast measurement. My car drains the battery at 45mA continuously. Given that the solar panel is lucky to deliver decent power 8 hours a day, roughly three times the drain current is needed to keep the battery charged. This is beyond this panel's capabilities, even on a nice summer day.Read more ›
The price of this item is reasonable and affordable. Perfect battery maintainer for the long winter months. Panels comes with its own clamps, adapters and connectors. Just to make sure, I checked the battery voltage before using this item and after using the item and the maintainer surely works great. The batteries show no sign of drainage or loss of voltage since one month. I have seen the voltage has gone up slightly indicating a good charge everyday.
Cons: One panel-wire had a loose connection (soldering). The LED light indicator turned ON sometimes and if I moved the panel-wire it went OFF. I understood it is loose soldering. If I had a solder iron, I could have easily repaired the loose connection. Since I don't, I returned the item and got another set which is fine.
In full sun, the array produces 70mA of current at 24V (60mA when properly attached to the battery). When attached in reverse, the array LED and diode together draw microamps of current (my ammeter could not measure that low of current).
Most Recent Customer Reviews
Works wonderful. Thin light weight. We bought 4 for our boats and works wonderful.
We attached them to the front and back of the boats to charge our boat batteries.
Not sure it ever worked. Put it in vehicle to keep battery topped. Left it for couple months, battery dead. Read morePublished 1 month ago by Keith A. Frazier
They work OK for now but they are very thin and delicate. Be careful using because they will break if you are too rough. Read morePublished 1 month ago by Tania
Bought 2 of these. One for farm truck and one for side by side. Both had brand new batteries (less than a week old). Read morePublished 2 months ago by Amazon Customer
Bought this solar charger to keep my motorcycle battery charged. as I only ride once every 1-2 weeks. Read morePublished 2 months ago by Harry
Works great left my car parked for 2 months at the airport in winter in Colorado and it started like a new battery was installed.Published 3 months ago by Michael D.
I was very concern about it but I went for it. Just got it. I installed it on my ford F150 4.6lt using the cig lighter plug and I tested the current and it was good so I knew this... Read morePublished 3 months ago by nofearxp