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Sunway solar battery trickle charger maintains the charge of car, truck, marine, tractors, ATVs, snowmobiles, boat,water crafts or RV 12 volt battery!
Why do I need a solar trickle charger?
- Batteries Naturally Discharge - Automotive batteries naturally discharge when not in use.
- Vehicles have a small but constant battery drain - Modern vehicles have upwards of 30 body control modules (computers), alarm systems, immobilizers and lock monitoring. These units all consume electricity from the battery. That's why in a week or two with no or little vehicle use the battery can become discharged.
- Battery life is shortened if it is not kept charged - A 12V battery that is not correctly maintained above 12.4V can suffer from sulphation. Sulphation is the main cause of battery failure. That's why the auto battery easy goes to dead when vehicles are left standing for long periods.
Get Sunway Solar Car Battery Charger As Your Battery Maintainer ,so you'll never have a flat battery again!!!
With Green LED charge indicator connector. It lights on while the solar charger is producing power. What's more, compare to the built-in charge indicator,the solar charger has better waterproof performance with an independent indicator connector.
- Keep your battery topped up with solar power
- Quickly connects and disconnects to the battery
- Mono Crystalline solar panel, with higher efficiency solar cell
- Covered with tempered solar glass,ultra clear glass makes solar cells absorb more sunlight.
- Durable ABS Plastic and solar glass
- Conveniently comes with battery clamp and cigarette light plug
- Compare to the built-in charge indicator, an independent indicator connector makes the solar charger has better waterproof performance.
- Maintenance free, lightweight compact design
- Interchangeable connectors: accessory socket plug and crocodile clips
- Green LED charge indicator
- Built-in diode prevents reverse charging
- Suction cups for easy mounting
One way plug connector. Plug and Play. Pretty safe and very easy to install.
- For optimal power, ensure the panel is directly facing the sunlight.
- Clean the Solar Battery Charger MONTHLY, or more frequently to maintain peak efficiency.
- The charger can be attached to the inside or outside of the car windshield.
- This solar panel charger is special design and the output voltage is 15volt, the charger will not overcharge the battery or cause any damage.
- But if your battery capacity is lower than 20AH, and you are worry about the battery will be overcharged, you can get a ‘Sunway solar 7A charge regulator’ or check the asin: B06X9VWZYF.
- The solar charger is a basic of trickle charger and it is best for slowly charging and maintaining battery charge.Please note that the charger is designed to top-up battery charge as a result of natural drainage. It is not intended to recharge a battery that has fully discharged.
- The charger is splashproof and waterproof,but it should not be submerged in water.
Operation: For optimal power, ensure the panel is directly facing the sunlight. Clean the Solar Battery Charger MONTHLY, or more frequently to maintain peak efficiency. Check the battery is 12V and larger than 50Ah. If the battery capacity is 50Ah or greater, the charger will not overcharge the battery or cause any damage. If the battery capacity is smaller than 50Ah,a suitable charge controller will be required. Or,please don't continuous charging more than three days. The solar charger is a basic of trickle charger and it is best for slowly charging and maintaining battery charge.Please note that the charger is designed to top-up battery charge as a result of natural drainage. It is not intended to recharge a battery that has fully discharged. The charger should not be submerged in water.
Interchangeable connectors: accessory socket plug and crocodile clips!
The solar charger panel can be mounted to the windshield or mounted using the mounting holes and place the charger in the desired location in direct sunlight.
Note:Some vehicles have tinted windows that will seriously affect the performance of your charger if it is positioned behind them. For Optimum charging the unit should be placed outside the vehicle in direct sunlight!
Plug the solar charger into your vehicle's 12-volt lighter socket.
In some makes of vehicle, the cigarette lighter may not operate when the ignition is turned off.
Note:You must disconnect the charger from your cigarette lighter or battery when starting you engine or driving. Electrical surges from the car engine when starting and running may damage your charger.
The charger can be connected to the battery using the crocodile clips provided.
Note:Ensure the red cable is connected to the positive (+) and the black cable is connected to the negative (-). If in any doubt seek assistance from a competent person. Do not leave the solar charger connected and unattended for long periods.
Jaime
Reviewed in the United States on February 5, 2025
so far these haven't disappointed me..i said "these" because i like them a lot that i bought 2 more..so i have 3 sitting in my car feeding my batteries on it..
Mommadeer
Reviewed in the United States on February 24, 2025
I would recommend this
Lynn F.
Reviewed in the United States on July 8, 2024
Awesome product. Keeps boat battery charged always.
dean c
Reviewed in the United States on July 14, 2024
The solar panel is used to maintain power in a lawn tractor battery. Works great.
Jerry N.
Reviewed in the United States on June 5, 2024
Was skeptical at first but I installed it on my she'd to keep my mower charged. Solid construction, even came with a test mudule. It works...very well.
Randy Lahey
Reviewed in the United States on February 3, 2022
Edit* below is what I thought before it broke.Went from 5 stars to 1 not sure how warranty is yet but I’m looking into itI’ve only had it a few months so idk how long it’ll last.It’s been a game changer for me though!I have it gator clipped onto my skiff battery, that keeps it charged to run my bilge pump on a float switch, in SE Alaska where it rains pretty much every day and not much light either. It’s been on top of my canvas T-top that has been covered in snow, salt water spray, and getting rocked and slammed pretty hard in some nasty weather. My pump switch got left on (froze) a few times that drained my battery, and my battery was submerged in salt water before I installed this and it’s been holding a charge since! Couldn’t be happier with it.
Laura Southworth
Reviewed in the United States on June 3, 2021
I got this for a customer of mine who doesn't drive their car enough to keep the battery charged up and it works perfect. Just permanently wired it to the battery and laid it on the dash and it does the job. No more problems with undercharged battery. I also like the fact that it wont over charge the battery but maintain it which was a problem I found in alot of the solar ones.
Bikini Whisperer
Reviewed in the United States on March 28, 2020
[update 9/2020]Okay so you got that part about the polarity is crossed between this unit, and a unit like Battery Tender?I'm not getting into who is 'right' or 'wrong' on these things, but the cross over plug is cheap (and the seller even offered to send one, so check with them) ... and they need to resolve that.... however...I need to upgrade my rating - because once you get past making it work, it seems to work quite well...!I've had this plugged in (once I got the crossover) to my Battery Tender pigtail that's connected to the battery of my motorcycle. Without this, I would plug the Battery Tender in when it was getting hard to start... and then I'd forget... and then I'd be buying a new battery. I can't really string a power cord to the carport all the time... So, this might have happened to me, err... more than once? (There's a reason I was looking for this product, right?)This has really worked to solve that problem... the solar panel sits near the bike... and it's not really in direct sunlight all that much... but even with all the crazy distractions of the pandemic (me not riding for months), the bike is now happy to start every time!(Of course this DIDN'T stop the problem of me needing to get out and ride, but at least the battery isn't dead, right?)So I'd still be delighted if they'd work out this need for a crossover plug (if you have the "conventional" Battery Tender), but it sure worked well in my situation. (Much better than the BT solar model I tried to get working - that got recycled. wasted my money).Best of all, I gave in and ordered a second unit for another bike - I think it's worked so nice, maybe I can stop buying new batteries for that bike, too?So I'm obviously sold... and the vendor offered great support (even if I didn't take them up on it) and I'm quite happy with the product! (Well, except for the polarity, but now that I'm forewarned, I can deal with that...)Buy it, sort out the plugs and polarity, and once it starts working it's great.-----------It looks like a great product... put it in the sun and the dongle with the LED lit up...But after reading their notes, and then looking at the cable, I can see why they caution not to connect to existing cables!After using Battery Tender (and a few clones) I have a pigtail already hanging off my battery - but the polarity of this "charger" is backwards!I can just see the design argument... (Yeah, well the battery is the source.... no the charger is the source... no, the... ... crud, we need a new charger, and maybe a new battery!)Really, I don't friggin' care, but if I plug this into the existing pigtail I'm going to make a mess and nothings going to get charged.So, cool product, but they cabled it like it's the source (battery) and not like it's charging the battery... so if you're not going to use the supplied (nearly useless) connectors, then get your voltmeter out before you plug it anywhere.
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