Features:

  • [Solar Panel Power Up To 3.8W]-Keep your 12V batteries topped off with this solar battery charger ,which helps to manage battery drain in all seasons. Designed to compensate for small, steady battery drains from the vehicle's clock or alarm system.If your battery capacity is lower than 20AH, we advise you to get a sunway solar controller regulator with it for overcharge safety protection,please check the asin B06X9VWZYF.
  • [Very Easy to Install]-The solar charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. If you need a Quick Connect And Disconnect Extension Cable For this solar charger,Please search the ASIN:B06X6LJTD6.
  • [Stronger and Durable]-Covered with ultra clear PV glass which is more efficient and also with Durable ABS plastic housing which is stronger. With BUILT-IN DIODE for prevents reverse charging from batteries.
  • [For Any Rechargeable 12 Volt Battery]-This solar battery trickle charger is the eco-friendly way to maintain the charge of any car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat and personal water crafts or RV 12 volt battery!
  • [LED Indicator]-with Blinking LED charge indicator when charging. When the 12volt battery is full charged, the blue LED light keeps stay on and no blinking.And when the solar battery charger is under strong sun light without be connected to the 12v battery, the blue light may also stay light up.And the solar charger maintainer Includes cigarette lighter adapter and alligator battery terminal clamps.We offer 12-Month Warranty! If you have any questions, please contact us.
Helps keep my trolling motor battery charged

I use this on my Jon boat to keep the trolling motor battery charging while we're out. It's a trickle charge, not a full charging unit, but helps to keep the battery going longer while we're fishing.

No more dead battery

Put this in my 1990 Suburban that was not making it from weekend to weekend due to a drain somewhere(most likely Viper alarm system). So far my truck has started strong each time since.

Simple to use and well built!

I ordered the Sunway Solar Car Battery Charger to maintain a marine deep cycle battery. I purchased the battery as part of an off-grid solar system. Since I bought the battery before purchasing the Renogy 100 watt Solar Starter kit, I needed a way to keep my battery charged and healthy in the meantime. The Sunway Solar Charger was very simple to use and charges (based on the blinking blue light) even in shady times of day. I'm very pleased and once I order my Renogy system, I'll have a handy solar charger for my boat battery.

So I was initially disappointed but decided to seal around the outer edge of ...

I bought this to keep my RV battery charged when we're not using it. When I got it the instructions said not for external use, which wasn't what other reviewers said. One reviewer claims he uses in on his boat and it's outside in all kinds of summer weather 24/7. So I was initially disappointed but decided to seal around the outer edge of the glass screen to prevent any water to enter there. I use a silicone caulk and it has been performing really well since I purchased it a month or so ago. It keeps my 24V deep cell RV battery up to maximum charge without having to use a regulator of any kind. I expect it last quite a while. I question the caution in the instructions for interior use only, but perhaps they are just CYA! I would buy it again.

Great product

Decided to try this brand. Made mount for charger to keep generator and winch batteries topped off. Like the flashing LED so you know it's working. Also the long cord is a plus. Reaches everything with room to spare. If it lasts for awhile and does it's job will definitely buy over and over.

Works great

I have a horrible problem with car batteries because I don’t drive my car much. I drive every week but only for very short distances. On top of that I travel for work, so my car can sit idle for two or three weeks at a time. Bottom line— even a brand new battery will require a jump start in about six months time. Normal trickle chargers weren’t an option because I don’t have a garage. My BIL wired this solar-charged trickle charger to my battery and ....WAHOO, my problem is solved! I drive an Infiniti G37 and after my last out-of-town work trip (where the car was idle for three weeks) the car started easily. I highly recommend this solar powered trickle charger (and my brother in law 😄)

Highly recommend this charger

Excellent charger for a very reasonable price. Went to Florida from Massachusetts for three weeks in February, 2017, and left charger attached to battery terminals on car. Several blizzards later when I returned, the car started like I had never left. I would highly recommend this product. Note though that like in my case, if your "cigarette lighter" port is not activated when the car is off, you will need to attach the cables directly to the battery. This was no problem with my Acura. I simply passed the wires out the driver side window and was able to close the door without hurting them (due to rubber stripping's flexibility). Same thing with the hood. I just threaded them under the top corner of the hood and was able to latch the hood without cable harm. Charger suction cups kept it attached to the inside of the windshield to soak up the sun and trickle charge my battery effectively. A lot cheaper than a service call, and/or new battery.

BORDERLINE BATTERY

Don't use my car often and hooked up the Maintainer to a battery that I knew was on it's last legs. Left my car parked at the airport for nine days and it started up with no hesitation. Convenience and Obscure Install Have since bought a new battery, hardwired the Maintainer with a 5amp fuse mounted as close as possible to the battery. Installed a Push On-Off Led switch mounted obscurely on the dash, yet within easy driver's reach and to keep the curious from playing with it. When taking my car to an auto-shop for repairs, I'll disable it at the quick-disconnect. NOTE: 1/2019 * Because the panel works well in low light conditions I no longer put it on my dash, the intense heat started to warp and split the case halves. So, instead I place it on my seat. *For safety, when storing my panel as per picture, I turn the panel away from any light source to totally de-energize the unit. I have on a rare occasion forgotten to turn the unit off before starting my vehicle, it caused no adverse effects on sensitive electronics. Still, its a bad idea to keep it on with vehicle running! (pic's show led lit/ un-lit operation and storage of unit)

This charger works great. The blue light lets you know it is ...

I got this to use on my camping trailer. I have two 12 volts batteries. This charger works great. The blue light lets you know it is charging. And it is waterproof. I bolted the charger onto my trailer using the two holes in it from the factory. Then I cut the battery clamps off the end of the cord and installed connections to mount it on the positive and negitive battery post. This way I still have the two prong plug to disconnect it if need. If the blue light does not come on, you have your positive and negative wires connected to the wrong battery post.

Very helpful device!

So far so bueno. Got this guy to keep the battery on my travel trailer going, it is parked too far from the house to keep it plugged in all the time. It charges when it's overcast which is great. Easy to use, this being my first solar product, the cord was long enough to put the panel inside the trailer, but it is tight so I purchased the extension cord kit. Overall I am happy with its performance thus far.

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