SUNER POWER Waterproof 12W 12V Solar Battery Charger & Maintainer Pro, Built-in UltraSmart MPPT Charge Controller, 12 Volt Solar Panel Trickle Charging Kits for Car Automotive Boat Marine RV Trailer
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Availability:
In Stock.
Arrives
Tuesday, Jul 29
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Size: BC-12W Pro
Features
- Ultra-Smart MPPT TechnologyThis 12v solar panel battery charger is crafted with SUNER POWER's unique Ultra-Smart MPPT( Max Power Point Tracking) technology, the innovative MPPT allows to deliver high tracking efficiency of up to 99% and peak conversion efficiency of 98%, improving approximately 20%-30% utilization rate than other competitors
- Improved 3-stages ChargingThe improved 3-Stages charging algorithm (Bulk, Absorption, Float) allows to charge 12-volt battery more effectively, ensures battery is safely recharged and increases battery life and performance
- Free MaintenanceThe solar trickle charger stops charging when battery has full charge, and automatically resumes when battery has discharge, totally free maintenance. A fully-automatic, worry-free and smart 12volt solar charger
- Full Safety ProtectionsBuilt-in multiple protections including over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature, waterproof and spark-proof, the battery is fully protected
- Wide CompatibilityIt's not just a solar powered battery charger, it's an advanced solar battery maintainer for 12-volt sealed lead-acid car, automotive, marine, RV, power sport, boat, dump trailer, motorcycle, trolling motor, tractor, ATV and deep-cycle batteries, including flooded, gel, AGM, SLA and maintenance-free, plus lifepo4 lithium batteries
- Superior Quality and MaterialMade of premium Grade A+ solar cells with efficiency up to 21%-30%, tempered solar glass and durable corrosion-resistant frame, withstand extreme weather conditions like UV, anti-rusting, erosion, hail, and sandstorm
- Easy to UseUsing the most advanced MPPT technology, this 12 volt solar battery charger starts charging immediately when it detects a battery. Pre-designed holes allow for quick mounting with included suction cups, and all cables are plug and play, offering easy and quick using experience
Brand: SUNER POWER
Color: Navy Blue
Product Dimensions: 16.5"D x 9.4"W x 0.6"H
Output Voltage: 12 Volts (DC)
Input Voltage: 18 Volts (DC)
Product Dimensions: 16.5 x 9.4 x 0.6 inches
Item Weight: 3.21 pounds
Manufacturer: SUNER POWER
Item model number: BC-50W-P
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: BC-12W Pro
*** update*** one of my best purchases! Changed it from four stars to five because I had not had it very long. This thing is fantastic! I have an older 2000 4 Runner where if I don't have a stronger battery like an AMD or EFG the battery is dead in three days without driving. There's a constant known drain on these Toyota's. The stronger batteries last about three weeks before they start to slowly disintegrate in charging. After having to get a second EFG battery the mechanic down the street told me to get a solar charger. I read lots of reviews and this is the one that I decided on. I had my portable jumper with me today prepared for the battery to not be working because I literally have not driven it in at least three months! I thought no way!?? But yes, it started up like a perfect brand new battery. I brought the charger on my errands because I thought maybe when I stopped it will discharge but no, it started right up again! I love this thing! Remember if you're gonna let your car sit to have a full tank of gas for the Health of the tank*****I like that the size is not overly obtrusive, and it's got plenty of length in the cords which is a huge plus for me as it doesn't limit where and how I decide to connect the solar panel to my battery. That being said, I have an older 2000 Toyota 4Runner and it's one of the models that does not work with the cigarette lighter which my sister said to use. Her husband used to have a collection of cars including Ferraris and $400,000 Porsches etc. all on trickle chargers but unfortunately I tried that mode and it will only connect while the engine is running which defeats the purpose! The small clamps are covered in cheap plastic and just barely fit around my battery terminals but they seem to work and send a signal. The third option doesn't look like it goes with my traditional type of (EFB) battery even if I unscrew the bolts and put it underneath. I'm not sure so I'm going to have to ask my mechanic because the kind that could just attach to your terminals without clamps. I could leave on and just disconnect and connect at will. The photos show a different type of battery for that straight wire connection so it looks like I am stuck with the clamps. I bought a 4 pack of round Dyi...?(you can find it by searching rubber coated magnets ) that won't rust or hurt my car and actually attach strongly to car. I read a lot of reviews on a lot of different magnets and many of these magnets won't even stick to stainless steel. You can't really attach them to this all on their own so what I did was I glued two of the magnets that are the exact size of the suction cups and added them to one end/side of the back of the board. This magnetized the board very strongly to the top of my roof and I was able to put up an angle on my roof rack. (See pictures ) It's not going anywhere! I don't know if I would want to attach it to my window as I'm not a big believer in suction cups holding in extreme circumstances like the magnets would . I have every confidence that these magnets will work through my car cover when I put that on. I sure wish I could've used the cigarette lighter but cannot so don't expect it to necessarily work on your car or think that it's defective because it doesn't light up on your model. It's charging right now so I will get back in a week or two to see if it stays fully charged. I know some people are recommending that you buy a battery status contraption for another 40+ dollars that if you get Bluetooth and you stand within 30 feet of your car it will give you the status of your battery health. I don't know if I need to go to that extreme. It's for a car that I don't drive that often, either of them that often, so I always have to worry about the battery. I sure hope for the price that this last for a while and from some reviews it seems to kind of be hit or miss so check the status light fairly frequently.
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Reviewed in the United States on January 14, 2025 by CAKatwoman CAKatwoman
Size: BC-12W Pro
UPDATE: My initial review of this Suner Power BC-12W-Pro solar battery charger was one star, because it just sat there and did nothing and neither I nor Amazon could get any response from Suner. I suspect that Amazon didn’t really contact Suner, because once Suner saw my review they contacted me and have been VERY responsive, even on nights and weekends. Mason of Suner Power walked me through some very simple tests requiring nothing more than a digital voltmeter and some sunshine and explained where I had erred. His diligence, my patience, the tests, and my better understanding of how to use and what to expect from a small solar panel resolved every issue efficiently and gave me faith in the company and its products. The initial problem with the panel was that it refused to even detect any of four automotive batteries I hooked it directly to via Suner’s battery clamps. Their instructions didn’t make it clear that the panel must be in sunshine just to detect a battery. Once Mason explained that to me, the panel came alive in the sun as verified by its informative brightly blinking LED. The next problem was that the panel still couldn’t detect a fully charged battery, let alone a marginally charged one. The third and most frustrating problem was that I could not contact Suner Power. The support and technical email links on their website did not work and Amazon’s call to Suner on my behalf got no response in more than a week. When frustration morphed into anger, I ripped Suner Power a new one in a one-star review here. THAT got immediate, clear, very helpful, and ultimately very effective responses from Suner. That bumped my rating to two stars, but I still couldn’t get any … you know … CHARGING from my charger. Suner/Mason then very generously sent me a pre-tested replacement and has continued to work closely with me to perform simple, sensible performance tests on both the original and replacement panels. Still, many hours of comparison on multiple vehicles in various stages of charge in various lighting conditions produced negligible charging. I have graduate degrees in engineering including many courses in electronics. I’ve been an avid automotive DIYer for many decades. I've installed big rooftop solar systems on two RVs and fixed automotive electrical problems that left me stranded and subsequently stumped dealers and independent garages. Yet this time I was stumped. Where does that leave the average consumer? I finally found the “secret” to making the panels work: Hook them up and let them sit in blazing sun for half an hour. Only then did the voltage start to climb, ultimately to a reassuring 13V or so. Once that happened, I switched panels and the second one, the one that initially couldn’t detect a battery, quickly detected the battery and hit 13V. I anticipate that the Suner Power 12W panel will work even better on the small 18aH jet ski battery mine is intended for. At this point I suggested to Mason that adding comments addressing these three additional caveats in their otherwise thorough instructions might save him and his customers a lot of time and angst: 1. Even for a panel to simply detect a battery, the panel must be in sunshine. 2. A quick operational test is insufficient. It may take up to an hour for a panel to boost a fully operational but marginally charged automotive battery’s voltage to 13 volts, even in bright sunshine. 3. To contact Suner Power, customers must manually type [email protected] or [email protected] into an email address window. Clicking on those links on the Suner Power website does not work. My only remaining dilemma was how many stars Suner has earned at this point. Just 3, because even though the panel works fine now, an initial glitch and shortcomings in the instructions thwarted the anticipated no-brainer plug and play? Naah … maybe 4 because it now works due to my better understanding? OTOH, how about 5 because of Mason’s outstanding, and these days rare, support? Yeah, let’s do 5, and hope that Suner Power adds a couple of comments to their instructions. That’s a cheap and hopefully helpful fix.
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Reviewed in the United States on March 26, 2025 by Believe It
Size: BC-12W Pro
So far, so good. Purchased this as a solar trickle charger for my boat battery when its on the lift between outings. The panel charged up my battery and keeps it topped off. Rain and wind have not negatively affected the panel or its ability to keep charging. Panel is well built and appears to be ready to last quite a while. Several types of charge cords are included to suit your hook up needs.
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Reviewed in the United States on June 25, 2025 by Jeff M.
Size: BC-12W Pro
For my Jeep that gets driven only once a week. I use it as a battery tender, keep it plugged into the unswitched cargo area 12 volt plug. Solid green light tells you when the batter is fully charged, and the circuit shuts off to prevent overcharging supposedly. Well, my battery has not exploded yet, so I guess it works. 4 stars because the suction cups do an OK job of holding this to the window. I've accidently hit the roll down switch for the window a couple times, and the suction cups did break away from the panel, that's better than breaking entirely. Overall I think it works, and hopefully will prolong the battery life, the Jeep has 2 batteries.
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Reviewed in the United States on May 31, 2025 by Bill K.
Size: BC-12W Pro
I purchased 2 of this model solar chargers that I use to keep my boat AGM batteries topped off while it is in the RV storage lot. They work great. When one ne of the charger's leds stopped blinking, I notified the manufacturer - they promptly sent a replacement - no charge. I am extremely satisfied with this product and the company.
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Reviewed in the United States on June 23, 2025 by Mark B.Kennedy