Solar Panel 390W Monocrystalline For RVs Boats Caravans Roof Mount Off Grid High Efficiency Ready RV and Marine Supplies
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Solar Panel 390W from RV & Marine Supplies is a high‑efficiency, monocrystalline photovoltaic module built to power your off‑grid lifestyle with reliability. Measuring 1956 x 992 x 40 mm and weighing 23.5 kg, this panel is designed to endure the rigors of roof mounting on RVs, boats, caravans, or remote cabins while delivering steady energy generation when and where you need it.
Key advantages that set this panel apart:
- Monocrystalline efficiency with module efficiency up to 16%, meaning more power per sun hour and better performance in constrained mounting space.
- Rugged, weather‑ready construction featuring an anodised aluminum frame, tempered glass, EVA and behind‑the‑glass layers to withstand harsh environments, hail, and UV exposure.
- Versatile power output designed for on/off‑grid systems with a nominal 12V DC output, making it easy to charge battery banks for camping fridges, lighting, and essential electronics.
- Electrical specs tuned for real‑world use Max Power 390W, Max Power Voltage 40.56V, Max Power Current 9.62A; Open Circuit Voltage 49.8V; Short Circuit Current 10.16A—supporting practical wiring with MC4 connectivity and longer cable runs when needed (0.9 m, 2.5 mm2 cable).
- Low‑light performance engineered to deliver meaningful charging even under cloudy skies or early morning sun, keeping you powered when other panels falter.
- Ready for installation suitable for a wide range of off‑grid configurations and easily paired with inverters and charge controllers to match your storage needs.
What you’ll use it for
This 390W module is ideal for RV owners seeking dependable roof‑top charging, boat owners wanting to maintain battery banks while docked or underway, and anyone building a portable or remote power system. It’s perfect for keeping a 12V or higher battery bank topped off for refrigeration, lighting, water pumps, navigation gear, and charging smartphones and laptops when you’re off the grid.
Why it matters
With its high efficiency and robust build, this solar panel helps you reduce generator use, lower fuel costs, and enjoy quiet, emissions‑free power wherever your adventures take you. The 1956 x 992 mm footprint offers substantial solar area without overextending your roof space, while the 40 mm profile keeps weight and profile manageable for secure mounting.
Practical details
40.56V / 9.62A 49.8V / 10.16A 0.9 m, 2.5 mm2 with MC4 connector RVJ1989
For durable, scalable solar power on your adventures, this 390W monocrystalline panel from RV & Marine Supplies delivers consistent performance, clear energy returns, and a trusted build that’s ready for the long haul.