7.5W Solar Battery Maintainer & Trickle Charger, 12V Waterproof Panel with IP68 Smart Controller, Overcharge & Reverse Protection for Car, Automobile, Boat, RV, Motorcycle, Marine, Trailer
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Thursday, Aug 20
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Size: 7.5W
Features
- Maximize Solar Intake: Experience superior energy conversion with our proprietary SmartTrack technology. By pairing premium monocrystalline silicon with real-time sunlight tracking, this solar trickle charger boosts efficiency to 30%, actively countering natural battery drain to ensure your gear is always primed for the next adventure.
- Visual Feedback & Active Protection: Monitor your charging status at a glance with the intuitive 3-color LED system: Blue for sunlight detection, Red for active charging, and Green for "Maintenance Mode." Leave connected 24/7 without worry thanks to our 6-Point Smart Safety system, which safeguards against reverse charging and overvoltage, significantly extending battery lifespan.
- Universal Vehicle Compatibility: Say goodbye to dead batteries during storage. Designed for cars, motorcycles, boats, trucks, pickup and RVs, this 12V solar battery maintainer seamlessly supports LiFePO4, AGM, and GEL batteriesperfect for keeping your seasonal vehicles power-ready during winter breaks or long-term parking.
- All-Weather Endurance: Tackle the harshest elements with confidence. Engineered with 3.2mm low-iron tempered glass and a corrosion-resistant aluminum frame, this solar car battery charger boasts an IP68 waterproof rating to withstand heavy rain, snow, and wind with ease.
- Effortless 360 Installation: Install anywherewalls, roofs, or uneven surfacesusing the included 360 adjustable bracket. The structure is reinforced with impact-resistant corner protectors to defend against accidental drops or debris.
- 25-Year Performance Grade: Invest in long-term value. Built with premium Grade A+ materials, Callsun panels are tested to deliver consistent power for over two decades. Backed by lifetime technical support and a promise to resolve any inquiries within 24 hours.
- What You Get: Callsun 7.5W Solar Panel, Smart Solar Controller, 360 Mounting Bracket, Alligator Clips, O-Ring Terminal Cable, Installation Kit, user manual, our worry-free 12-month warranty, and friendly customer service.
Brand: Callsun
Material: 3.2mm Tempered Glass, Monocrystalline Silicon
Product Dimensions: 13"L x 0.78"W x 7.95"H
Efficiency: 30% High Efficiency
Included Components: solar panel
Efficiency: 30% High Efficiency
Amperage Capacity: 0.41 Amps
Maximum Voltage: 18.42 Volts
Upper Temperature Rating: 70 Degrees Celsius
Maximum Power: 7.5 Watts
Special Features: Anodized Aluminum Alloy, Smart Solar Battery Controller
Output Voltage: 21.87 Volts
Connector Type: SAE to SAE
Item Dimensions L x W x H: 13"L x 0.78"W x 7.95"H
Brand Name: Callsun
Included Components: solar panel
Model Number: CS-DB7.5W
Manufacturer Part Number: CS-DB7.5W
Manufacturer: Callsun
Material Type: 3.2mm Tempered Glass, Monocrystalline Silicon
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Aug 20
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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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 7.5W
Put this on my Kubota Tractor to keep the battery charged, especially in the winter when it’s not used as often. We use it to plow snow, but depends on the year whether there is any and you sure don’t want to have a dead battery when the snow is flying all around you. This charges the battery very nicely and the tractor fires right up. I’m ordering another one for an ATV. Good Controller, easy to install and works great! The panel itself looks to be super high quality. Strong and not flimsy at all.
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Reviewed in the United States on March 7, 2026 by D. Deem
Size: 7.5W
Works good, using on me riding lawn mower to keep the battery up,now I don’t have to jump start my mower anymore
Reviewed in the United States on March 13, 2026 by Tim
Size: 20W
I have a company van that has a GPS tracker that stays active constantly that will run the battery down if it sits for a few days. I have been off work for an injury and use this plugged in and just lay it on the windshield. I went out to move it for mowing today after not being started for almost 6 weeks and it started right up. Seems to be doing well with keeping the battery charged. I will probably buy another one to use on a battery bank i put together with an inverter to run my cordless tool batteries and for light in my shed
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Reviewed in the United States on March 26, 2026 by ShotgunDoc
Size: 7.5W
Arrived quickly, Installed easily and began working right away. Set it and forget it. Should keep my boat battery topped of and ready to go when I need it.
Reviewed in the United States on March 15, 2026 by Simon
Size: 20W
This has got to be the best little charger “solar” I’ve ever had plus it puts out 100% of what advertised and great to have I keep this as a must in my RV to keep my engine batteries maintained
Reviewed in the United States on February 13, 2026 by C,T,Robert
Size: 7.5W
Bought this for a 2005 Toyota solara with interstate battery. The car sits and I try to drive it at least once a week. But days go bye and I would end up with the battery needing a jump. So decided I would try this out. Not disappointed at all. Its been a few weeks now and each time I started the car it cranked right over. Not sure if its good to leave it connected, the first time I drove the car I unhooked after starting. The last 2 times I left it connected and did my errands. Seems amazing for the price. Definitely recommend.
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Reviewed in the United States on March 29, 2026 by Guy
Size: 20W
Works great. Charges in the shade. Overkill for my application but I’m extremely happy with the three I purchased. Home made solar box set up for deer cameras. Replaced crappy HME solar box
Reviewed in the United States on March 30, 2026 by R. Childers
Size: 20W
This was purchased after I've bought a similar charger from a different brand ( which was slightly more expensive). Thus, I'm able to compare the 2 products. If you click on the "Visit the Callsun Store " link, the opened page was convincing enough to me that they specialized in solar products. This Callsun charger has way better more robust components, wire cables thicker, even better cable ties provided. Their packaging in foam is excellent. Beware that the charge controller is attached/glued to the back of the solar panel and is not detachable,.. which some photos presented could get you misinformed. I would buy this product again !
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Reviewed in the United States on February 5, 2026 by mar ino