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

April 21, 2026 - Comment

Price: $21.99(as of – Details) Product description Choose a solar panel that works for you Add to Cart Add to Cart Add to Cart Customer Reviews — 5.0 out of 5 stars 1 4.4 out of 5 stars 66 5.0 out of 5 stars 6 4.6 out of 5 stars 3 4.6 out of 5


Price: $21.99 - $19.99 $21.99
(as of Apr 21, 2026 02:59:09 UTC – Details)


Product description

rv solar panel rv solar panel

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3

solar panel itsolar panel it

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1

solar panel kitsolar panel kit

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1

Choose a solar panel that works for you

Add to Cart

Add to Cart

Add to Cart

Customer Reviews

5.0 out of 5 stars 1

4.4 out of 5 stars 66

5.0 out of 5 stars 6

4.6 out of 5 stars 3

4.6 out of 5 stars 69

4.7 out of 5 stars 24

Price

$159.99$159.99

$93.99$93.99

$29.99$29.99

$39.99$39.99

$104.49$104.49

Special Feature

TwinCell Shade Immunity

TwinCell Shade Immunity

Three-stage Smart Charging

Three-stage Smart Charging

Three-stage Smart Charging

Ultra-Thin,240°Bendable Design

Ultra-Thin,240°Bendable Design

Visual Indicator Light

No

No

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?

?

×

×

Types of solar cell

N-Type

N-Type

Monocrystalline Silicon

Monocrystalline Silicon

Monocrystalline Silicon

Monocrystalline Cells

Monocrystalline Cells

High Efficiency

25% High Efficiency

25% High Efficiency

30%

30%

30%

23%

23%

Waterproof Rate

IP68

IP68

IP68

IP68

IP68

IP68

IP68

Dimensions

46.46″L x 30.31″W x 1.58″H

43.31″L x 22.76″W x 1.38″H

Weight

20.94 Pounds

15.1 Pounds

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 batteries—perfect 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 anywhere—walls, roofs, or uneven surfaces—using 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.

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