440W Portable Solar Panel 17.2lbs Foldable SolarBag Splits 2×220W Solar Blanket 25% High Efficiency Lightweight Solar Panel Charger for Camping RV SUV Marine Off Grid

- 17.2 lbs Ultra-Light ? Our OptiSolex 440W Solarbag is ????% ?????????????? and ????% ?????????????? than comparable 400W systems, freeing up space for your essential gear so you no longer ave to choose between solar panels and your cooler. - Rated 440W Output ? Built with N-type cells reaching up to 25% conversion efficiency. While output varies with conditions, it delivers about 10% more than standard 400W panels under full sunlight. - Zipper Design ? 2×220W panels fold independently for flexible placement. They can charge both an RV battery and a power station at the same time, with each panel supporting up to 3 electronic devices. The panels can be split for lightweight camping or combined for RV trips, meeting various needs. - High Compatibility ? Works with most portable power stations and, when paired with the Optisolex SolexBrick S1 (not included), easily charges LiFePO4 batteries at 12V, 24V, or 48V, meeting various outdoor and emergency power needs. - 6-Port Fast Output ? USB-C 45W, USB-A 18W, and USB-A 15W ports charge multiple devices simultaneously, meeting the needs of power stations, phones, and small appliances. Say goodbye to power anxiety. - Durable Design & Warranty ? ETFE-laminated and IP65 rated, this solar panel ensures reliable outdoor performance. With a carry handle and adjustable shoulder straps, it’s easy to transport. Includes a 3-year materials and workmanship warranty.

Product description

OPTISLOEX 440W Portable SolarBag

Solar Power That Adapts to You

Pack Lighter, Do More

Power Faster, Wait Less

Does the package come with the Optisolex SolexBrick S1 controller?

Why is my 440W OptiSolex SolarBag labeled as "SolarBag 400"?

Is the SolarBag compatible with my power station?

Why is my portable solar panel underproducing?

Why does my solar panel develop white spots during use?

OPTISOLEX Solar Panels

Foldable Design

Free up room for gear that matters ? no more choosing between solar panels and your cooler.

N-Type Solar Cells

Built with N-type cells reaching up to 25% conversion efficiency.

Rated 440W Output

Split for lightweight camping, or combined for RV trips. One kit does it all.

Split for lightweight camping - charge both RV battery and power station at the same time.

Turn peak sunlight into max power- charge 1kWh in less than 3 hours. (Actual charge time varies by location and weather.)

Does the package come with the Optisolex SolexBrick S1 controller?

No, it doesn't. The current purchase option is for our standalone 440W Solarbag. This includes only the solar panel itself; the SolexBrick S1 charge controller is not included in the package.

Why is my 440W OptiSolex SolarBag labeled as "SolarBag 400"?

The packaging says "SolarBag 400" but the product is the 440W OptiSolex SolarBag. It has been renamed to reflect its official 440W STC rating (up from 400W for realistic expectations).

Is the SolarBag compatible with my power station?

Check your power station's solar input specs (max voltage Voc and current). The OptiSolex 440W SolarBag operates at 42V, 11.2A. If your station’s rated input ≥ these values, it is compatible.

Why is my portable solar panel underproducing?

Solar panel performance depends on several key factors, such as sunlight intensity, temperature, and weather conditions. Indirect sunlight, rising temperatures, cloudiness, and dust and dirt build-up can reduce the output of your solar panel.

Why does my solar panel develop white spots during use?

White spots are caused by hotspots from partial shading. This uneven heating alters the EVA encapsulation layer, affecting appearance and efficiency. (Always ensure the entire panel is exposed to uniform sunlight without any shadows or obstructions.)