30W Solar Panel 24.5% Efficiency Rating 1.1lbs NO US SALES TAX!


  • Handheld 2-Way Ham Radios that charge from DC5521 can charge directly from the back of all of our Solar Blankets.
  • Only 1.1lbs, New charging ports including 1 USB, 1 USB-C & 1 DC5521.
  • Digital display  on back shows charging wattage. .
  • SunPower Gen 3 Maxeon cells are used which allow for the most absorption of energy in direct sunlight or the shade, making their charging abilities greater than other solar cells available.  24.5% Efficiency Rating.
  • ETFE Integrated Laminated Solar Blanket which is Anti-Reflective, Scratch Resistant, Durable & Waterproof, giving the Solar Blanket a Rubberized Feel and offers much better absorption of energy from the sun


Model OGT28.5
Max Power 30W
Convert efficiency 24.5%
Output Type C 5V 3A, 9V 2.1A 12V 2.1A
Output USB/DC USB 5V 3.6A DC 12V 2.1A
Folding size 11.9X7.9X1.6inch/303X200X40mm
Unfolding size 25.5X6.7X0.2inch/675X170X5mm



30W POWER RATING: One of the most powerful, portable solar power options on the market today,  VERY LIGHT WEIGHT: Weighing only 1.1lbs. Leaving more storage for other items you may want to bring on the adventure.

EXTREME EFFICIENCY: It is rarely sunny all day, but the Off Grid Trek blanket’s solar cells are able to harness maximum power even on cloudy or overcast days. The solar panel is 24.5% efficient, while most of the similar products on the market are 15% or lower. We only use the best Sunpower Gen 3 Maxeon solar cells.

CHARGE YOUR MOBILE DEVICES DIRECTLY: Connect your devices to either the USB/USB-C/DC5521 ports for high-speed, safe charging of mobile devices on the back of the solar blanket.

AUTOMATICALLY BUILT-IN USB IC: Most folding solar panels with a USB connector cannot charge some types of mobile phones due to not having an automatically recognized USB IC. The special IC in the Off Grid Trek blanket makes the charging current as powerful as possible so the charging rate is quicker, where other types of folding solar panels only consume some of the output current, making the charging time much longer.

ENVIRONMENTALLY FRIENDLY: Extend battery life by maintaining correct charge levels. Save the environment and your wallet!

ETFE Surface: Enhances the Solar Blankets performance and life. Imported from Japan, the EFTE has a better transparency than the normal PET which increases the Solar Blankets Power Output in the same light conditions. The ETFE also increases the life of the solar blanket to more than 8 years. 

Customer Reviews

Based on 8 reviews
Todd (Otis, US)
Very useful 30W solar blanket for small devices

Very high quality blanket and great size for traveling or camping needs. I got several of these for family members who might need a backup for charging phones and other small devices in a pinch using the USB A or USB C ports.
Rene was great to work with in also providing a useful DC5521 cable for using the DC port. That cable along with a DC5521 to DC7909 adaptor makes it possible to use the 30W blanket to charge an Anker 521 power station.
Highly recommend Off Grid Trek products!

Hi Todd, happy you are putting these to good use, we appreciate the review

Chris (Minneapolis, US)
Great addition to the camping kit & BOB

Great quality product that works well for charging the essentials. Very compact and light.
Additionally Off Grid Trek went above and beyond calling me directly to confirm details on my order, much appreciated.

Hi Chris,
Happy it is working well for you, we appreciate the review

David Ski (La Jolla, US)
So far so good

I've only used it twice but so far with only 3/4 son at fully recharged my backpacking power bricks without a problem.

Hi David, those are great results, Thank You for the review!

Stephen (Fairfield, US)
Works awesome even on cloudy days

I bought this because I recently purchased a DJI Mini 3 Pro drone and it has a USB port so you can charge the battery out in the field. We've had alot of cloudy days here in Montana lately so I tested this on an overcast day and it charged the drone just fine, I was getting 10 watts with no direct sun. I'm a solar panel freak and own tons of different solar panels and this is by far the most impressive! I'm saving my pennies to buy one of the large ones.

Awesome, works how it should, Thank You for the review Stephen!

chris renn (Newark, US)
Everyday user

Bought it for light camping and emergency use. Came in real handy when the power went out at -33 wind chill this year. Placed it in my window and was able to keep all my battery powered devices charged for the most part. Still haven't taken it out from the window and still charge all my portables off it. Recommended to my father and brothers who both are looking at buying.

Happy that it has provided power when needed for you