30W 12V Solar Battery Maintainer & Trickle Charger
Key Features
• 30W High-Efficiency Power Uses 30% efficient PERC monocrystalline cells for superior energy conversion
• 360° Optimal Adjustability Features a non-slip, fixable bracket to maximize solar capture for gate openers, fences, and pumps
• Extreme Weather Resilience IP68-rated design withstands 2400Pa wind and 3600Pa snow loads
• Durable Build Quality Combines 1.6mm tempered glass with a corrosion-resistant anodized aluminum alloy frame
• Compact Mounting Measures 15.9 × 18.2 × 0.8 ± 0.2 in and weighs 5.62 lb for versatile installation
30W 12V Solar Battery Maintainer & Trickle Charger - 1 Pack is backordered and will ship as soon as it is back in stock.









Delivery time: 3-8 business days.



30-Day Return and Refund Service
Warranty Coverage
Free Shipping30W 12V Solar Battery Maintainer & Trickle Charger
Boost your 12V batteries with Callsun 30W high-efficiency solar charger. Featuring A+ monocrystalline cells, IP68 all-weather durability, smart 3-stage charging, and wide battery compatibility, it keeps your cars, RVs, boats, and motorcycles powered and ready, anytime, anywhere.
Why Choose Callsun Solar Panel
| Feature | Callsun Solar Panel | Other Solar Panels |
|---|---|---|
| Efficiency | 30% | 20% |
| Installation | 360° Flexible Installation | 180° Flexible Installation |
| Waterproof | IP68 | IP65 |
| Frame | Anodized Aluminum Alloy | General Aluminum Alloy |
| Glass | 1.6mm Tempered Glass | 0.6mm Tempered Glass |
Specifications
Key Specs at a Glance 30W output · 30% efficiency · Adjustable Angle(360°) · IP68
Mechanical Characteristics(STC)
| Maximum Power (Pmax) | 30W |
|---|---|
| Maximum Power Voltage (Vmp) | 20.16V |
| Maximum Power Current (Imp) | 1.49A |
| Open-circuit Voltage (Voc) | 24.3V |
| Short-circuit Current (Isc) | 1.57A |
| Cell Type | Monocrystalline Silicon |
*STC(Standard Test Condition): Irradiance 1000W/m², Cell Temperature 25°C, Air Mass 1.5.
Specifications
| Dimension | 403 × 463 × 20 ± 5 mm (15.9 × 18.2 × 0.8 ± 0.2 in) |
|---|---|
| Weight | 2.55kg(5.62 lb) |
| Compatible with | 12V LiFePO4, Lithium Ion, AGM, SLA, GEL, FLD, EFB, MF batteries |
| Glass | 1.6mm Tempered Glass |
| Frame | Anodized Aluminium Alloy |
| IP Rating | IP68 |
| Max. Wind Load/Snow Load | 2400Pa/3600Pa |
| Connector | Solar Connector Compatible |
Includes
Downloads & View
User Manual
FAQ
1. Can I leave the solar charger connected all the time?
Yes. The built-in intelligent chip automatically switches between Bulk, Absorption, and Maintenance modes. Combined with the 6-point safety system, it prevents overcharging and allows safe 24/7 connection.
2. Do I need to purchase a separate charge controller for this 30W solar panel?
No. The 30W panel features a built-in smart controller, meaning you can connect the alligator clips or O-rings directly to your 12V battery without needing any external regulation hardware.
3. How does the 3-status LED system show the different charging stages?
The intuitive 3-status LED indicators change based on the internal chip's activity. They provide immediate visual feedback as the system automatically transitions through the Bulk, Absorption, and Maintenance modes.
4. What temperature range can this solar charger handle for year-round outdoor use?
Featuring an IP68 weather-sealed, full-potting design, the charger is engineered to maintain stable and reliable performance in extreme outdoor environments ranging from 14°F to 158°F (-10°C to 70°C).
30W 12V Solar Battery Maintainer & Trickle Charger - 1 Pack is backordered and will ship as soon as it is back in stock.









