400W 12V Fixed Shingled Mono Solar Panel Caravan Camping RV

400W 12V Fixed Shingled Mono Solar Panel for Caravans, RVs & Off-Grid Systems

This 400W 12V fixed shingled monocrystalline solar panel is designed for compatible caravan, camper trailer, RV, 4WD, shed and off-grid installations. Its rigid aluminium frame and tempered-glass construction suit permanent mounting where reliable high-output solar charging is required.

Check before ordering: the panel measures 1480 × 680 × 35mm. Confirm your available mounting area and make sure your solar controller or inverter can safely accept the panel’s 22.2V open-circuit voltage and 23.7A short-circuit current. This listing is for one solar panel unless another quantity is selected or stated.

Why Choose This Panel?

• 400W rated peak power under standard test conditions
• Shingled monocrystalline cell construction
• Rigid anodised aluminium frame with tempered-glass face
• Low-voltage, high-current electrical profile for compatible 12V battery systems
• Suitable for lithium LiFePO4, AGM and deep-cycle batteries when used with the correct charge controller
• Compact 1480 × 680mm footprint for compatible caravan and RV installations

Technical Specifications

• Model: SPAST-400-12V-SHING
• Maximum Power (Pmax): 400W
• Cell Type: Grade A shingled monocrystalline
• Maximum Power Voltage (Vmp): 18.5V
• Maximum Power Current (Imp): 21.6A
• Open Circuit Voltage (Voc): 22.2V
• Short Circuit Current (Isc): 23.7A
• Maximum System Voltage: 1000V DC
• Operating Temperature: -40°C to 85°C
• Dimensions: 1480 × 680 × 35mm
• Net Weight: 11.5kg

Controller & Battery Compatibility

Use a compatible solar charge controller, DC-DC charger with solar input, or hybrid inverter. Check the controller’s maximum PV voltage, PV input-current limit and charging-output rating before connection. The charging profile must also suit your battery chemistry.

When combining panels, remember that series wiring increases array voltage and parallel wiring increases array current. Recalculate the complete array against all controller limits and use appropriately rated cable, connectors, fuses and isolation.

Suitable Applications

• Caravans, motorhomes and camper trailers with adequate mounting area
• 4WD canopy and touring power systems
• Off-grid cabins, sheds and remote installations
• Battery charging systems using compatible MPPT or PWM equipment

What’s Included

• 1 × 400W 12V fixed shingled monocrystalline solar panel
• Pre-fitted solar leads/connectors as shown

Mounting brackets, extension cables, controller, fuses, isolators and batteries are not included unless purchased separately.

Delivery, Installation & Real-World Output

Standard-size orders are generally targeted for dispatch within 1–2 business days; oversized solar panels can require 2–4 business days. Available delivery options and any charges are confirmed at checkout.

Rated output is measured under standard test conditions. Actual output varies with sunlight, temperature, shade, mounting angle, cleanliness, cabling and controller efficiency. Use secure structural mounting and qualified installation assistance where required.

Frequently Asked Questions

Can this panel charge a lithium battery?

Yes, when connected through a compatible controller configured for the battery manufacturer’s recommended lithium charging profile.

Is a solar regulator included?

No regulator is listed as included. Choose a controller that safely supports the panel’s voltage and current and the intended battery system.

Can I connect two panels?

Yes, if the controller, cabling and protection devices are sized for the combined array. Series and parallel wiring change the voltage and current differently, so check the complete design before connection.

Need help choosing a compatible system? Contact the StarPower team by live chat or sales email before ordering.