Sunsei 25006 SE-500 7.5-Watt 15-Volt Solar Panel Battery Charger / Maintainer

by Sunsei

Product Features

• 7.5-Watt (500mA, 15-Volt)solar charger, perfect for medium sized boats, R-Volts, trucks and tractors
• Protects against natural battery discharge and electronic drain
• Touch-action indicator
• Engineered to maintain your 12-Volt deep cycle battery
• Perfect for back-up power in RVs, boats or off-grid applications

Product Details

• Product Dimensions: 17.8 x 16 x 2 inches ; 3.3 pounds
• Shipping Weight: 5 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B001KQ5XBO
• Item model number: SE-500
• Average Customer Review: 4.5 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #53,369 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

From the Manufacturer

The SE-500 Sunsei solar 7.5-Watt 120-Volt charger is a solar panel designed to provide reliable, renewable energy as an alternative to noisy and expensive diesel, propane and gas generators. This solar panel is ideal for medium-sized boats, RVs, trucks and tractors and can also be used to charge portable electronics, deer feeders, gate openers and fence charges. It is engineered to maintain a 12-Volt deep-cycle battery, it will keep a battery topped off when not in use. The weatherproof solar charger provides immediate trickle-charge when exposed to daylight, even on cloudy days. Its "Plug-n-Play" features allows connection of multiple panels in seconds without tools or rewiring; it also features a touch-action indicator to show when the panel is charging. The panel comes with 1 -cigarette lighter adapter,1-female cigarette lighter adapter,1-battery clamp connector,1-terminal ring connector,1-extension cable (10-Feet),1-panel-to-panel jumper cable, 4-mounting screws. It is 14.8-Inch by 14.2-Inch by 1-Inch in size and weighs 3.3-Pound. It is covered by a 10-year warranty

Product Description

This solar-powered battery trickle charger from ICP® Solar Technologies is perfect for medium-sized boats, RVs, trucks and tractors. It's designed to protect against natural battery discharge and electronic drain, and it can also charge portable units such as deer feeders and gate openers.

Customer Reviews

Most Helpful Customer Reviews

14 of 14 people found the following review helpful:

5.0 out of 5 stars Well worth the investment, December 30, 2008

By 

J. Preston (San Juan Mountains) - See all my reviews
(TOP 1000 REVIEWER)    (REAL NAME)   

Amazon Verified Purchase

I purchased this for trickle charging the battery on my tractor. It tends to sit (covered) in a sunny spot, and, it is an electricity hog when I use the lights on it. It has worked well for about a month maintaining the charge on the battery, making up for the poor output of the old generator on the tractor, and boosting the starting and lighting power.

This unit provides a constance 0.5 amp charge. I have a few concerns. I hooked up a high quality voltmeter to it and the charge read somewhere between 16 volts and 18 volts (off the scale on my volt meter). Under a load (once connected to the battery) it may read a lower voltage but I have not measured it under load.

In any event, it charges the battery over a period of about four days and keeps it charged.

A real plus to this unit is that it is accompanied by an excellent array of leads. It has an extension cord that is about 8 feet long. There are four types of leads enclosed with the package.

The first are bare wires (+ and - (red & black)) that, on the other end, plug into the unit or the extension cord.

The second are a set of alligator clips (+ and - (red & black)) that, on the other end, plug into the unit or the extension cord.

The third is a male cigar lighter adapter that plugs into the unit or the extension cord.

The fourt is a female cigar lighter adapter that plugs into the unit or the extension cord.

All of the connections and leads are of good to high quality.

With these attachments, you have the versatility you need to hook it up to any vehicle or 12v battery.

This is well worth the $100 (approximate cost plus shipping).

9 of 10 people found the following review helpful:

5.0 out of 5 stars Excellent Trickle Charger, July 10, 2008

By 

JSC0324 (Burbank, CA USA) - See all my reviews

In all fairness, I never expected to charge a dead battery with this. I leave my boat parked in the desert and I leave this plugged in. Week after week, I go back to the boat and it the battery is fully charged. I was worried that without a trickle charger that I would be "stuck" constantly looking for a jump or have to carry another jumper battery. With the SE-400, this has not been the case. I did buy the small charge controller (probably not needed) as well as the mounting equipment. The mounting arrangement was overpriced for what it was, but it works very well and is probably the simplest way to go. If you're handy, you could easily make your own. (This should be a separate review.) If you are looking for a trickle charger, I think this is an excellent solution.

6 of 6 people found the following review helpful:

4.0 out of 5 stars Maybe better to buy at a store, March 29, 2009

By 

crevatis "crevatis" (Chicago, IL) - See all my reviews

This review is from: Sunsei 25006 SE-500 7.5-Watt 15-Volt Solar Panel Battery Charger / Maintainer (Lawn & Patio)

The product is very nice and works as advertised. Sunsei did a nice job for the most part. Only issue with its design is the caps that cover the 2 power jacks on it fall off easily and are easily lost.

Other than that, the only problem is upon receiving it, it had two large cracks across the glass. It still works, but is no longer weatherproof. You cannot see these until you open and remove the panel from its blister pack. Mine was shipped from Vermont to Chicago via UPS. Even though the box had "FRAGILE" printed on it, they didn't take good care shipping it. In the future I'll look for this sort of product in an outdoors recreation store in the area.