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B&Q£163.99Visit shop B&Q - Efficient Slim Solar Panel 250W Shade Resistant Monocrystalline For Caravan Boat Off-Grid Charging
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The GWSOLAR 250W Efficient Solar Panel is designed for off-grid enthusiasts, caravan owners, and boaters who need a reliable, space-efficient power source. By utilizing advanced monocrystalline PERC cells with a shade-resistant parallel circuit design, this panel maintains high energy yields even in less-than-ideal conditions. While it is a robust and visually sleek solution, users should note that an external MPPT charge controller is required to effectively manage voltage output for 12V or 24V battery banks.
| Model Part Number | 5065027728127 |
|---|---|
| Brand | GWSOLAR |
Yes, but you must use an MPPT charge controller to regulate the 33.5V output down to the voltage levels required for 12V battery charging.
The panel uses a parallel circuit design, which allows electricity to flow around partially shaded cells rather than forcing the entire panel's output to drop.
Yes, it is designed for outdoor use and features weather-resistant construction suitable for marine and caravan environments.
The panel weighs 14kg, making it manageable for most standard roof mounting systems.
Yes, multiple panels can be connected in parallel or series depending on your charge controller’s maximum input voltage and current specifications.
Check the panel surface for obstructions such as leaves, snow, or dirt, and verify that all cable connections are secure.
Use a multimeter to test the output at the solar leads; if voltage is present, the issue likely resides in the wiring to the controller or the controller settings.
Clean the panel with a non-abrasive cleaner; do not use high-pressure sprayers or harsh chemicals that could damage the anti-reflective coating.
For optimal installation, ensure the mounting surface is stable and allows for adequate airflow underneath the panel to prevent overheating. As this panel outputs at 33.5V, it must be connected to an MPPT (Maximum Power Point Tracking) charge controller to step the voltage down safely for your battery bank.
| System Voltage | Controller Required | Connection Method |
| :--- | :--- | :--- |
| 12V Battery | MPPT | Series/Parallel |
| 24V Battery | MPPT | Series/Parallel |
For care, clean the surface with a soft cloth and mild, non-abrasive soap. Avoid walking on the panel, as structural damage can compromise the cells and reduce performance.
