|Item Weight||10.1 ounces|
|Package Dimensions||7.5 x 6.5 x 1.5 inches|
|Manufacturer Part Number||43238-127056|
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12 Volt Waterproof Solar Sealed Lead Acid Battery Charger UV87511
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Go green with renewable energy. Draw power straight from the sun with a rugged, waterproof outdoor solar charger. Perfect for all your outdoor applications, like boating, camping, hunting or RV's. Keep the battery on your boat topped off when it's tied to the dock. For hunting enthusiasts, power your automatic deer feeder with this solar charger. The breakaway kit on your trailer will always be ready when it's hooked up to this. Don't be cut off just because there isn't an outlet nearby. Trickle charge only Over-charge circuit protection. For use with automotive and other sealed lead acid batteries. Waterproof Rust / corrosive proof Maintenance free Easy installation Find batteries that this will charge click here .
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Lets begin with the alligator clips, they are junk! The negative clip was broken upon opening, and the positive clip fell apart after a day. But, since I planned on cutting them off anyway, it did not affect my review. I'm only posting this part since some of you will be using the alligator clips as the sole means of attachment.
I temporarily mounted the panel to the hood of my riding mower, so disregard the zip ties. I hooked the panel up on a sunny day and mowed the 3/4 acre lawn, not massive, but not a 10 minute job either. Upon completing the mowing the battery was at 12.67V. So I parked the mower next to the deck instead of the garage hoping my days of hooking the mower to the trickle charger in the garage were gone. over the next week, we had one day of scattered clouds followed by five days of thunderstorms and overcast, not a single bit of direct sunlight during those five days. At the end of the week, the battery read 12.73V.
I know some of you are thinking, half a volt is nothing. But what this proves is the fact that in one afternoon, under use the battery did not loose any power as usual. In fact it charged from 12.23-12.67. Over the next six days the charger was running at less than 25% normal sunlight and the battery still charged from 12.67-12.73. I have not disconnected the charger, since I crimped on terminal end loops and hard mounted it to my battery. This also goes to prove that there is no drainage during night or bad weather, it also proves the waterproof claim.
I will post an update on the 14.4V cutoff claim once/if the battery reaches that point.
I am completely satisfied with this solar panel and can now leave my riding mower outside and clean up some space in the garage. To some of you this may be a sin, but my mower has been outside for years and still holds up, I keep the rust off and maintain it regularly, just need more space in the garage.
UPDATE: 11 months later this thing still keeps the charged battery from draining. It sat all winter and the mower fired right up this spring, over the past 8 winters I have had to charge the battery and continue charging it once or twice a season. Still cannot comment on the 14.4V shutoff, as the Battery maintains around 12.85V-13V. The plastic is holding up well, I would recommend adding some flowable silicone to keep moisture out. I used RTV and it discolored the plastic where I applied it on the bottom edges.
Many questions were useless on Amazon, but it DOES come with a little diode built in so you won't lose any power at night. I ended up buying a bunch of diodes on sparkfun because nobody could answer the question.
As far as weather proof, that is debatable. I am deploying these in an area with monsoons, so I will come back to this review if they die. There is no gasket, just a plastic on plastic cover, that hopefully will repel water.
Pros: inexpensive, easy to assemble and mount
Cons: base is a little flimsy. Alligator clips are kinda cheap.
Overall assessment: killer deal. I'll be ordering more of these for future projects.