400W (200W*2) 18V Solar Panel N-Type Mono 18BB Roof RV Boat Off-Grid Battery
400W (200W*2) 18V Solar Panel N-Type Mono 18BB Roof RV Boat Off-Grid Battery
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Product Description
Powerful 18V Output for 12V Battery Charging
Unlike standard 12V solar panels, our 18V solar panel can charge your 12V battery more efficiently through a controller using just one panel. This gives you a practical advantage and makes installation easier.
Premium Pure Copper Wire
Built for hot weather performance.
Our panel uses high-quality pure copper wire, which stays cooler and carries current better than copper-clad aluminum wire, especially in summer conditions.
Superior Build Quality
Made with higher manufacturing standards and refined craftsmanship, this solar panel offers dependable performance, durability, and a clean finished look.
Dual-Layer Wire Protection
The cable is designed with a 2-layer protection system for enhanced durability:
Outer UV-resistant layer
Inner insulation layer
This helps protect the wiring from sunlight, wear, and outdoor conditions.
Reverse Current Blocking Protection
Equipped with a blocking diode junction box, the solar panel helps prevent reverse current at night, so your battery won’t lose power after sunset.
Smooth and Safe Edges
The panel frame is finished with smooth edges for safer handling during installation and transport.
Secure Packaging
Carefully packaged to help ensure the solar panel arrives well protected and in excellent condition.
Specification
| Parameter | Details |
|---|---|
| Type | Solar Panel |
| Power Source | Solar |
| Technology / Solar Technology | N-Type, Monocrystalline |
| Pliability | Rigid |
| Material | Reinforced Glass |
| Frame Material | Aluminum |
| Color | Black |
| Power / Maximum Input Power | 200 W |
| Wattage | 200-299 W |
| Voltage | 18 V |
| Maximum Input Voltage | 11-20 V |
| Current Type | DC |
| Current Output | 11-19 A |
| Current Rating | Greater Than 10 A |
| Charging Mode | MPPT / PWM Compatible |
| Connector Type | MC4 |
| Connector Configuration | Male & Female |
| System Configuration | Off-Grid |
| Dimensions | 1340 × 670 × 30 mm |
| Size | 52.76 × 26.38 x 1.18 in |
| Weight | Approximately 18.5 lbs (8.4 kg) |
| Efficiency | High Efficiency |
| Features |
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| Application |
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| Recommended Environment | Outdoor |
| Resistance Properties |
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| Protection Properties |
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FAQ
Q: What is the difference between off-grid and on-grid systems?
A: Off-grid systems use batteries and work independently from the utility grid. On-grid systems connect to the utility grid and may help reduce electricity costs through net metering.
Q: Why is my solar panel not reaching full power?
A: Output may be affected by weather, shading, dirt, panel angle, temperature, or system wiring. Cleaning and proper installation can help improve performance.
Q: Should I wire panels in series or parallel?
A: Series wiring increases voltage, while parallel wiring increases current and can reduce shading-related losses. Choose the setup that matches your controller or inverter specifications.
Q: What does “12V” mean in the title?
A: “12V” means the panel is intended for use with a 12V battery system. The actual panel operating voltage is typically higher (around 18V), which is required for proper charging.