Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel
with Sharp Module

Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Pane...

Category: (Automotive Parts and Accessories)

4 new, starting at $435.31

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Editorial Reviews

SHARP polycrystalline 80W solar kit that can produce 4.67 amps. Kit comes complete with a male D/C plug, mounting bracket and screws, battery clamps, voltage tester, quick connectors, and extra wiring. Ideal for boats, RV, 12v battery charging, pumps, satellite dishes, and many other uses. Easy to install, weatherproof, and allows for connecting multiple panels for more power. Unit has a 25-year warranty.

The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel Module will give you several more reasons to love the sun. It provides the power you need, while helping you save money and protect the environment. This panel is ideal for cabins, recreational vehicles, remote power, back-up power, and 12-Volt battery charging. This panel comes with compatible wiring, accessories and a voltage tester to help you start producing up to 80 Watts of clean, free power in all weather conditions.


Sunforce panels can be easily added to new or existing systems.
Convenient Power That Helps You Save Money and Protect the Environment
The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel Module lets you harness the power of the sun, the most powerful and plentiful source of energy available to us. This inexhaustible supply of power is freely available wherever the sun shines, and gives users the freedom to power their homes, RVs, boats, batteries, and electronic equipment far from civilization or right in town. Solar power can help cut your energy bills by reducing your dependence on the main electrical grid, and can also provide back-up power during outages. Unlike nuclear and fossil fuels, solar power systems are clean and pollution-free, and they require very little maintenance to operate.


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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Flexible Power for New or Existing Systems
The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel Module is an ideal addition to both new and existing solar power systems. It comes with a voltage tester, wiring and mounting accessories to make installation easy. These solar panels can be used individually, or they can be connected together to boost power output.

Sunforce High-Efficiency Polycrystalline Solar Panels must be connected to a compatible charge controller (sold separately). The charge controller prevents the solar panel from overcharging and damaging connected batteries or electrical systems. It also prevents reverse current from sapping your battery strength at night. Sunforce High-Efficiency Polycrystalline Solar Panels can be connected in parallel for 12-Volt systems, or in series for 24- and 32-Volt applications. Please ensure that the components being used in your system are compatible with the individual and total output voltage of your solar panels.

About Polycrystalline Solar Power
Polycrystalline silicon is a material consisting of thin wafers that are cut from a silicon crystal which has grown in several directions. This advanced surface texturing process provides polycrystalline solar panels with a higher power output than amorphous panels of the same dimensions, and makes them more cost and space-effective. These individual wafers are assembled into panels that are covered by durable, weatherproof tempered glass. Thanks to their efficiency and durability, these solar panels require virtually no maintenance once installed. This solar panel has a maximum power output of 80-Watts/4.67-Amps.

Solar panels convert sunlight into an electric current; they do not actually store power. Sunforce Solar Power Panels are primarily used to recharge all types of 12-Volt batteries, including lead-acid automotive batteries, deep-cycle (traction type) batteries, gel-cell batteries, and heavy-duty (stationary type) batteries. When using these solar panels to run appliances on a regular basis, the use of deep-cycle marine batteries is recommended. This type of battery is designed to withstand the frequent charge and discharge cycles associated with solar panel use.

Customer Reviews

Great Panel - packed poorly

Reviewed by R. Rothen, 2010-02-27

The panel is great - built very solid, as well.
One thing I did not care for: it was packed poorly. An extra layer of heavy cardboard on the outside of the box would be good. The mounting- kit, cable and free tester were just floating in the box. I bought two panels (2 separate orders) - both times it was shipped in the same manner.
The panels would deserve 5 stars... but because of poor packing... only 3 stars.

Sunforce does the Job

Reviewed by John E. Miles, 2010-02-07

I've purchased the Sunforce 39810 80-watt solar panel, and completed the easy installation. I also purchased the 30 Amp controller. Both units are working as advertised. The panel provides approx 4.7 amperes on a sunny day to recharge my battery.

An excellent bargain for either battery usage or grid tie - great size too

Reviewed by HMMWV, 2010-02-05

In evaluating solar panels (and systems of many panels) the typical pricepoint is $5.10/watt in high volume production. If you are finding better pricing than that something is wrong.

An example may be inefficient panels that use larger panels, causing massive panel size such that it is 4-8 times larger than this panel with the same output.

Other inefficiencies to watch out for are caused by voltages that are not useful. You could, for example, have a panel that output 500V at 1/10 A for 50W sold for $250 - looks good financially but very few charge controllers go much over 250 volts (and many dont make 250 volts - some are 12 or 48 volt systems). So that panel is not much use

This panel is in the sweet spot - enough power to be useful (80W/3 is a simple approximation for what useful power you can get with a battery all day long - about 25W or so given inefficiences. So theoretically it could support a 25W load 24x7 with an 8 hour day of sun.

The last inefficiencies to watch out for are panels that need heavy sun before they produce any output. Some panels produce usable (1-2 amps) output with just ambient scattered light such as a foggy day, while others give near zero output unless the sunlight strikes them head on. This panel design gives output whenever there is light, which is good. More light is always better, but it could be worse.

So to sum it up - there are no pitfalls here. It passes all the checks for pricing and performance. We load tested a string of 12 of these for a customer to profile their output to help decide if a rotator would help and it showed that very little gain would come from the expense of an automatic rotation system due to the panel's efficiency at many angles. With 12 panels we produced 1KW for 8 hours with taper up and down on both sides.

Best of all this can be used in series strings for grid tie systems or with battery maintainers

Off grid power

Reviewed by Wayne Shappy, 2009-10-05

This product works great it provides me with enough power to keep in touch with the outside world.

Rising force in the market

Reviewed by V S, 2009-09-06

80 Watts/4.67 Amps = 17 volts.

Be sure to size your system appropriately to minimize voltage drop to your inverter.

Sunforce isnt the cheapest, but still a good price and a nice, solid product with a 25-year warranty.

Note: GET A SOLAR SURVEY - you might not qualify for any tax rebates if you dont get one!

Also do the math yourself. If you live on the 43rd paralell and get 4.4 sun hours per day average, do NOT place these at 43 degrees! Tilt them closer to the SUMMER sun angle. You'll get more sun in summer and less in winter, but you arent getting much in winter anyways! You'll get more yearly output (or get a tracker and not do any math)

The technology is getting better; cheaper manufacturing processes and better spectrum band as well as improvements leading to higher efficiencies. If you want better stuff, I dont know how "long" you should wait. It can only get so good, the potput isnt going to duble or anything. Laws of physics