US Local Shipping | Free Shipping

Free Warranty | 30-Day Easy Returns

30W 12V Solar Battery Maintainer & Trickle Charger

Regular price $44.99

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

First order: Save 5% WELCOME5
Pack Option
Payment Methods
Delivery Methods
Delivery time: 3-8 business days.
30-Day Return and Refund Service
Warranty Coverage
Free Shipping

30W 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

Callsun 30W 12V solar battery maintainer & trickle charger kit with adjustable bracket and alligator clips on a white background.

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).