Renogy 100W 12V Flexible Solar Panel: features, specs and who it suits

The Renogy 100W 12V flexible solar panel is a lightweight, bendable panel for off-grid charging. It is aimed at RVs, boats, vans and other places where a rigid glass panel is heavy or the surface is curved. Here is what its specs mean and what to check when planning a setup.

Flexible rather than rigid

Renogy says the panel bends up to 240 degrees, so it suits curved roofs such as van and boat tops, and weighs about one third as much as a rigid panel. The listing gives 5.3 lb (about 2.4 kg). Flexible panels are typically thin and light, but they are usually fixed with adhesive or fasteners rather than a frame, and it is common to leave a small air gap beneath for cooling. The all-black appearance is glare-free, according to Renogy.

What 100W and 12V mean

The 100W figure is the panel's output under standard laboratory test conditions, and real output varies with sun angle, temperature and shade. Renogy says the panel can provide an average of around 500 watt-hours per day, depending on sun availability. That figure is a guide: it assumes decent sunlight, and winter or cloudy weather will give less.

The 12V label means the panel is intended for 12V battery systems. In most setups, a solar charge controller sits between the panel and the battery to regulate charging. Check the controller's input limits against the panel's electrical specifications in the manual.

Cell technology

Renogy says the panel uses half-cut PERC monocrystalline cells. Monocrystalline silicon is known for good efficiency per area. Half-cut cells split each cell in two, which typically reduces resistive losses and can help when part of the panel is shaded. PERC adds a rear layer that captures more light. Renogy states that this improves capture and output efficiency.

Weather resistance

The junction box and solar connectors are rated IP67 for waterproofing. Renogy says the panel withstands up to 5,400 Pa of snow load and 2,400 Pa of wind load. These are laboratory test figures, and mounting method matters as much as the panel itself.

Size and installation

The panel measures about 43 x 22.9 inches (109 x 58 cm) and is 0.1 inch (about 3 mm) thick. It has pre-drilled mounting holes and 2.3 ft (about 0.7 m) solar connector cables. The cables are short, so plan for extension cables if the controller is far from the panel. Follow the manual on mounting, wiring and fuses.

Who it suits

It suits RV, van and boat owners, small off-grid cabins and anyone who needs a light panel to maintain or charge a 12V battery, especially on a curved surface.

What to check before you buy

• Surface: make sure the roof or deck can take the mounting method you plan to use.
• Space: measure the area and keep clear of shade from vents and antennas.
• Controller and battery: confirm voltage and current limits match.
• Cables: the supplied cables are about 2.3 ft; check whether you need extensions.
• Daily energy: compare 500 Wh per day with your actual use.

The short version

• A 100W, 12V flexible monocrystalline panel that bends up to 240 degrees.
• About 5.3 lb and 43 x 22.9 inches, around one third the weight of a rigid panel.
• Half-cut PERC cells and IP67 connectors; rated for 5,400 Pa snow load and 2,400 Pa wind load.
• Pre-drilled holes and 2.3 ft cables; typically needs a charge controller.

Bloiq is reader-supported. Some links may earn us a commission; it never affects what we write. How we make money.