25W 12V Solar Battery Charger & Maintainer with Dual USB Ports

Keep compatible 12V batteries maintained and provide convenient USB charging outdoors with this 25W Solar Battery Charger & Maintainer. Its lightweight polycrystalline solar panel is designed for use with cars, RVs, boats and other compatible 12V battery applications while also providing dual USB outputs for charging compatible electronic devices.

25W Solar Charging

The polycrystalline solar panel is rated for up to 25W of power under suitable conditions and uses a high-light-transmission PET surface.

Actual solar output varies with sunlight intensity, panel position, temperature and other environmental conditions.

12V Battery Maintenance

Designed for compatible 12V battery applications, the panel includes battery clips for connecting to a battery.

A built-in blocking diode helps prevent reverse discharge when the solar panel is not generating power.

This makes the panel useful for maintaining compatible batteries in cars, RVs, boats and other vehicles or equipment during storage and outdoor use.

Dual USB Charging

Two USB charging outputs provide additional versatility for compatible USB-powered devices.

USB Output: 5V/2A and 5V/3A with intelligent recognition.

Flexible & Portable Design

The lightweight panel measures approximately 16.37 × 14.37 × 0.59 inches and weighs approximately 1.21 lbs, making it easier to transport and position than larger rigid solar panels.

The approximately 30-inch alligator-clip cable provides additional flexibility when connecting the panel to a compatible battery.

Outdoor-Ready Construction

The panel carries an IP68 waterproof rating and is designed to tolerate outdoor conditions. For best charging performance, position the panel in direct sunlight with minimal obstruction.

Specifications

Rated Power: Up to 25W
System Voltage: 12V
Working Voltage: 18V ±0.3V
Maximum System Voltage: 18V
Working Current: 1A ±0.15A
Short-Circuit Current: 1A ±0.15A
Open-Circuit Voltage: 20V ±0.8V
USB Output: 5V/2A & 5V/3A
Photoelectric Conversion Rate: Up to 20%, depending on conditions
Panel Material: PET + EVA + Polycrystalline Solar Cells
Waterproof Rating: IP68
Dimensions: Approximately 16.37 × 14.37 × 0.59 in
Weight: Approximately 1.21 lbs
Alligator Clip Cable Length: Approximately 30 in
Operating Temperature: Approximately -40°F to 185°F
Color: White & Blue

What's Included

• 1 × 25W Solar Panel
• 1 × Battery Clip Cable

Important Use Information

Solar output depends on sunlight intensity, panel angle, temperature and other environmental conditions. The rated 25W output should not be interpreted as continuous output under all conditions.

Confirm battery voltage and compatibility before connecting the panel.

The manufacturer states that the protective plastic film on the panel surface is intended to be removed.

Do not place the panel in rainy conditions when effective solar charging is required, as reduced sunlight will significantly decrease charging performance.

Keep electrical connections clean and secure and follow the battery manufacturer's charging and safety requirements.