| View Larger Image | S-1116: 12V Briefcase Solar Generator | Misc.by Golden Gadgets
| 1 New starting at: | $69.99 |
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| | Sales Rank: | 109,288th |
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FEATURES | - Use Amorphous silicon solar cells
- Power: 13 Watts maximum
- Working voltage: equal or greater than 14V
- Working current: equal or greater than 750mA
- Dimension: 20.07" x 14.76" x 1.57" (510mm x 375mm x 40mm)
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EDITORIAL REVIEWS |
Product Description
The Briefcase Solar Generator can charge a wide range of applications, can be served as battery maintainer for marine boat, motor house or big vehicle. Supplying power to notebook computer, satellite telephone, electric hand tool like cordless drill. Or as a independent power source for outdoor activity like camping, exploration. A blinking charging indicator to give a clear view that the generator is working and a built-in diode to prevent reverse charging.
Comes with the Solar Briefcase, battery clamps, and cigarette lighter plug. |
CUSTOMER REVIEWS (Average Customer Rating: 4.0 based on 2 reviews)
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S-1116 Amorphous Briefcase Solar Performance Numbers by Michael D. Zuteck  4 Stars
November 08, 2009
I bought this unit as a low cost way to gain some hands on experience with solar panels, and for possible use to recharge my laptop computer after a hurricane power outage. Via digital voltmeter I found:
Open circuit voltage: ~ 21.5 v
Max charging current: 400 - 500 ma
Both the voltage and current will vary somewhat depending on temperature and insolation - these values are for shirt sleeve temperature and good sky conditions. I've used it to recharge the battery on a motorcycle that's used infrequently, and leave it on the front dash of an Astro van that is also infrequently used. It adds charge in both cases, but at a half amp tops its not a fast way to do it.
The unit is reasonably well built, and the supplied hookup cables are useful. For light duty or maintenance charging, it can do the job. If you want to deliver a more robust amount of power, a monocrystaline panel will deliver a lot more juice for the same physical size, whether its briefcase or regular panel.
Bottom line - if you understand its limits, this product is a good way to mess around with solar power at a modest price. But it you want to generate more serious levels of power, look at the mono or poly crystaline alternatives.
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Very Good for Emergencies by WILLIAM MCLEAN (Medford, OR USA) 4 Stars
May 24, 2009
I own four of these. Got them from another source. I have all of them in a closet waiting for an extended power outage. I purchased Radio Shack #274-1573 adapters so that I can plug them directly into my four Xantrex XPower Powerpack 400 plus units (battery pack power sources). These power packs give me both 12 Volt DC and 115 Volt AC. I keep them fully charged by plugging them in to the wall socket. As for choosing solar panels, If I could afford it (and I was many years younger) I might have purchased the much more expensive monocrystalline solar panels. They retain 80% of original efficiency after twenty five years of continuous use. By contrast, these much cheaper S-1116 briefcase panels will only last about five years of continuous use. Also, the monocrystalline panels are much more efficient and thus smaller while producing higher wattage. A nice portable monocrystalline briefcase is available at much higher cost. It is even somewhat weather proof. The S-1116 is not weather proof. If you want to set up a lifetime solar power source, buy monocrystalline solar panels. But, I assume you are only wanting a portable solar power source for emergencies. If so, I think this cheaper S-1116 is your best choice. It might also be a good choice considering that they do last five years - and the scientific community is continuously improving, and reducing cost of, everything electronic. All four of my panels tested better than advertised. Maybe I should have given the S-1116 five stars.
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