7.5W 12V Solar Battery Maintainer & Trickle Charger
Key Features
• 30% High Efficiency Delivers superior charging performance compared to standard panels
• 360° Flexible Installation Adjustable mounting allows for optimal sunlight capture
• IP68 Waterproof Durability Features a rugged 1.6mm tempered glass surface and anodized aluminum frame
• Universal 12V Compatibility Maintains LiFePO4, Lithium-ion, AGM, GEL, and various lead-acid batteries
• Versatile Use Prevents dead batteries for cars, RVs, boats, tractors, and more
7.5W 12V Solar Battery Maintainer & Trickle Charger - 1 Pack is backordered and will ship as soon as it is back in stock.














7.5W 12V Solar Battery Maintainer & Trickle Charger
SmartTrack charging, LED status, IP68 protection, and 360° installation support LiFePO4, AGM, and GEL batteries.
Callsun Solar Panel vs Other Solar Panels Comparison
| Feature | Callsun Solar Panel | Other Solar Panels |
|---|---|---|
| Efficiency | 30% | 20% |
| Angle | Adjustable Angle(360°) | 180° Flexible Installation |
| Waterproof | IP68 | IP65 |
| Frame | Anodized Aluminum Alloy | General Aluminum Alloy |
| Glass | 1.6mm Tempered Glass | 0.6mm Tempered Glass |
IP68 Extreme Weather Protection
IP68 protection, tempered glass, and corrosion-resistant aluminum withstand 2400Pa wind and 5400Pa snow loads for lasting durability.
High-Efficiency, Fully Adjustable Design
Up to 30% efficiency, 360° adjustability, IP68 protection, anodized aluminum, and 1.6mm tempered glass deliver lasting performance.
360° Adjustable Sun Tracking
Track sunlight throughout the day with a 360° adjustable bracket for ground, wall, flat-roof, and sloped-roof installation.
Advanced 12V Charging Protection
Comprehensive protection against overcharge, over-current, short circuits, overheating, reverse charging, and over-voltage, with clear status indicators.
Reliable Battery Maintenance
Maintain vehicle batteries during long-term storage, preventing discharge and preserving battery health with reliable solar charging.
Durable High-Efficiency Solar Panel
High-efficiency monocrystalline cells, tempered glass, EVA, TPT backsheet, anodized aluminum, and IP68 protection ensure lasting durability.
Versatile 12V Battery Charger
Maintain 12V batteries for cars, RVs, boats, ATVs, motorcycles, trailers, lawn mowers, and water pumps.
Specifications
Key Specs at a Glance 7.5W output · 30% efficiency · Adjustable Angle(360°) · IP68
Mechanical Characteristics(STC)
| Maximum Power (Pmax) | 7.5W |
|---|---|
| Maximum Power Voltage (Vmp) | 18.08V |
| Maximum Power Current (Imp) | 0.42A |
| Open-circuit Voltage (Voc) | 21.28V |
| Short-circuit Current (Isc) | 0.43A |
| Cell Type | Monocrystalline Silicon |
*STC(Standard Test Condition): Irradiance 1000W/m², Cell Temperature 25°C, Air Mass 1.5.
Specifications
| Dimension | 200 × 330 × 17 ± 5 mm (7.9 × 13.0 × 0.7 ± 0.2 in) |
|---|---|
| Weight | 1.57kg(3.46 lb) |
| Operating Temperature Range | 14°F ~ 158°F (-10°C ~ 70°C) |
| Glass | 1.6mm Tempered Glass |
| Frame | Anodized Aluminium Alloy |
| IP Rating | IP68 |
| Max. Wind Load/Snow Load | 2400Pa/3600Pa |
| Compatible with | 12V LiFePO4, Lithium Ion, AGM, SLA, GEL, FLD, EFB, MF batteries |
Includes
FAQ
1. Can this solar battery maintainer be left connected 24/7 without damaging my battery?
Yes! Thanks to the 6-Point Smart Safety system, it protects against reverse charging and overvoltage, allowing you to safely leave it connected all day and night, extending your battery's lifespan.
2. Can this 7.5W charger recharge a completely dead 12V battery?
No. This is a 7.5W trickle charger and maintainer designed strictly to prevent battery drain during storage and maintain voltage. It does not have enough power to efficiently recharge a fully discharged or dead battery.
3. What do the 3-color LED status indicators on the controller mean?
The built-in 3-color LED indicators provide real-time status monitoring. They change colors to show whether the system is actively charging, maintaining/fully charged, or if there is a connection fault.
4. What is the difference between the included Alligator Clips and O-Ring Cables?
Use the Alligator Clips for quick, temporary connections to various vehicles. Use the O-Ring Terminal Cable for a permanent, bolted connection to a single battery, allowing for quick plug-and-play disconnects.
7.5W 12V Solar Battery Maintainer & Trickle Charger - 1 Pack is backordered and will ship as soon as it is back in stock.








