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Victron Energy
Victron BlueSolar 20Wp
Victron BlueSolar 20Wp
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The Victron BlueSolar 20Wp monocrystalline solar panel is a compact glass panel for campers, boats and other small off-grid installations. The anodized aluminum frame, tempered glass and bypass diodes make it suitable for reliable permanent installation.
- 20Wp rated power
- Monocrystalline solar cells
- Dimensions: 440 × 350 × 25 mm
- Weight: 1.9 kg
Why this Victron BlueSolar panel?▾
- Compact size for small available roof areas.
- Good performance in low light and sensitivity across a wide light spectrum.
- Waterproof junction box and bypass diodes to limit power loss due to partial shading.
- Sturdy aluminum frame and tempered glass for permanent installation.
The actual yield depends on the season, solar radiation, shade, mounting orientation and the battery charge status.
Specifications and dimensions▾
20Wp
Monocrystalline
18.5V
1.09A
22.6V
1.19A
440 × 350 × 25 mm
1.9 kg
What else do you need?▾
- Charge controller: Victron SmartSolar MPPT 75/10 for one panel on a 12V battery installation.
- Solar cable: 4mm² solar cable set. The panel has a junction box with screw terminals; make the connection strain-relieved and waterproof.
- Battery cable and fuse: 4mm² battery cable set, 2 × 1m with 15A fuse, with the fuse close to the battery or positive busbar.
- Roof entry: a suitable cable entry for the route inside.
- Cable management: UV-resistant adhesive cable mounts and zip ties.
Never connect a solar panel directly to the battery. Always use a suitable charge controller and protection.
Mounting on camper, boat or frame▾
Camper: preferably use aluminum Z-profiles. For this compact size we do not recommend any specific plastic spoiler.
Boat: on a suitable flat deck plastic corner supports are a practical choice.
Measure the available space beforehand and take into account skylights, ventilation, rails, cable entry and the space of the mounting material. Carefully degrease the surface, use suitable construction adhesive and primers and make all entries waterproof.
Use with a 24V battery▾
One separate panel has insufficient operating voltage for a 24V battery. Use multiple identical panels in series or choose a panel with a higher operating voltage. Always check the maximum open-circuit voltage and the limits of the MPPT charge controller.
Common mistakes▾
- Connecting the panel directly to the battery.
- Insufficient strain relief or waterproofing of the connection in the junction box.
- Using a cable that is too thin or missing a fuse.
- Combining panels with different electrical characteristics without checking.
- Not taking into account shade, roof obstacles and space for mounting.
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