GRECELL 240W Portable Solar Panel for Power Station, Ultra Light Foldable Solar Panel Kit, 25% High Efficiency, IP65 Waterproof, Solar Charger for Outdoor Camping RV Boat Home Backup Power, Off-Grid

We purchased the 100 watt panel to go along with our Grecell HW01 power supply. The solar panel is constructed very well, and feels to be very high quality. It folds in half for excellent portability, and has straps that snap to keep it closed. The storage pocket on the back is nice for keeping all the cables and adapters in one place, ready to use. The included cables and adapters will allow this to be used with many different powerbanks. Kickstands, one per side, are sturdy, and prop it at a good angle to get plenty of surface exposure to the sun. During my initial tests, with small clouds visible, I was getting up to 86 watts during the peak of the day. It charged my bank up to 100% from 68% rather quickly. Our powerbank is used for small items, and device charging while camping, and also to run my astronomy equipment throughout the night. This panel will make recharging easy during the day, without having to worry about running my vehicle battery down.

Top notch panel. Easy to fold away. Love the built in support legs. Even if they can be a little cumbersome to move once out, they were perfectly fine for a fold-up panel. Very flexible and pretty stable. The power output is great. During overcast days even during the rain, I was still getting somewhere around 7 to 15 watts. During sunny but semi-clouded days I was getting around 100 to 120 watts. On full sun days I was getting 170 plus. They stood up to full storm weather so the durability is great. They connected into my power bank easily with the proper connector and they kept my portable power station fully charged during sunny days.

Wow..... nice, compact, efficient panel. Even with the sun 60 degrees off, 45 degrees high with my panels hanging on vehicle..... I was able to pull 160w. These far exceed performance of my last panel. The panels appear much different than the Amazon picture. An obvious upgrade to a much better performing panel. A few moving parts and pieces but nothing too complicated to set up. My one recommendation to Grecell is to add a USB-C port inside the zippered bag where panel branches into the MC -4 cable. The addition of a USB-C port would make this a stand-alone useable panel without a solar generator. 5-stars - really impressive performance.

Already pulling 150 watts at 9am however I’ve yet to see anything close to 200 even with no clouds and 85 degree weather. Still nice panels for half of Anker, quality cables very portable and charging my C1000 quite well with provided adaptor!

For campers, van-lifers, and anyone building a portable power setup, the aims to deliver a practical balance between portability, efficiency, and real-world usability. While many portable solar panels promise high output but struggle in everyday conditions, this foldable 100W model focuses on dependable performance and convenience for outdoor power needs. Compact design built for travel One of the most appealing aspects of the panel is its foldable briefcase-style design, which makes it easy to transport on camping trips or store in a vehicle. Weighing roughly 10 lbs and folding into a compact carry size, it strikes a good balance between portability and usable power. The panel includes integrated handles and adjustable kickstands, allowing users to quickly set it up and angle it toward the sun for better efficiency. That small design detail matters in real-world use because proper positioning can significantly improve solar charging speed. High-efficiency monocrystalline cells Under the surface, the panel uses monocrystalline solar cells with conversion efficiency around 23–23.5%, which is higher than many portable panels that typically operate closer to 18–20%. In ideal sunlight, users often see 80–90 watts of output, which is considered excellent real-world performance for a 100W portable panel. This level of output makes the panel suitable for charging: Portable power stations Phones and tablets Laptops or small electronics Emergency backup batteries The standard MC4 connectors and included adapters also make it compatible with many popular solar generators used for camping or emergency preparedness. Durability for outdoor environments Outdoor gear needs to survive harsh conditions, and this panel uses ETFE-laminated solar cells with an Oxford fabric backing, which helps resist UV exposure, heat, and wear from outdoor use. The materials also make it easier to wipe dust or dirt off the surface—important because clean panels perform noticeably better when charging. Performance limitations to keep in mind Like all solar panels, performance is heavily dependent on sunlight. Output can drop significantly in cloudy weather or partial shade, which is a normal limitation of portable solar systems. Another small drawback is that the panel is not fully waterproof, so it should be protected during heavy rain or prolonged moisture exposure. Some users also mention that the included cables can feel a bit short for larger campsite setups. Final verdict The GRECELL 100W Portable Solar Panel succeeds by focusing on practical off-grid power rather than unrealistic promises. With strong conversion efficiency, good real-world output, and a travel-friendly folding design, it’s a dependable option for outdoor enthusiasts and emergency power users. If you need a portable solar solution for camping, RV trips, van life, or backup charging, this panel offers a solid mix of portability, efficiency, and compatibility with most power stations—making it a smart addition to any mobile energy setup.

Great solar panel. We haven’t had it long but we have hooked it up in multiple weather conditions and it does work well. It draws different amounts of watts based on weather conditions and placement so it’s not always 100 which we knew when we bought it. You have to be reasonable when buying solar panels. It is tough and did well during an ice storm when outside. The design works well and has legs in the back to prop it up. The cables are pretty long but you have to keep the generator pretty near it, so we got some extenders. When storing this it’s pretty slim and fits into our small closet, but it’s still a pretty good size panel. We’d love a bigger wattage one to try out one day.

Very impressed with this Grecell 200 watt portable panel. Not only was the price amazing, but the quality and the function of the panel lives up to Grecells reputation. I purchased this panel to charge 2 x100ah lithium batteries and to keep my 12v compressor fridge running. I hooked it up to test it and this is in January when the sun is low. It already hit 144 watts and I'm sure it will do much better when we get some real sun for extended periods of time. Very happy how well it works and it's compact size. Easy to haul and setup too. I'm running a 100/30 Victron charge controller inside my camper. I have a 6 foot cable with a anderson connector from the MPPT controller out through the old lead acid battery vent hole in the side of the camper. I then connect that 6 foot cable to a 30 foot extension cable to the solar panel. Works perfectly! Very excited to do some off grid camping with this setup. Thanks Grecell!

Ive been using this panel for a little over a month now. I really like to use things in multiple situations and gauge its effectiveness; This panel is perfect for what I am using it for. I wanted something that was lightweight, easy to store and transport to supplement my mounted solar panels. I don't always have the best options for parking in the sun, and the angle is never perfect with mounted panels. What I really wanted was a panel I could easily and quickly setup in the best location to supplement my charging. I have been extremely pleased with this purchase. It really filled the niche I needed with my setup in my camper van, and I also found myself using it in a lot of other applications because it is very portable and light weight. 1. Very portable. I really liked how its all self contained, the cables, adapters, all come in a zipper pouch, and I ended up using it to store my 20 ft cables as well, so when it is time to set it up, its really a "Grab and go " situation. The handles are very nice, and they have magnetic clasps so the unit stays closed until its time to use it. I really liked this feature, because it kept it safe, and stopped anything from slipping inside the panel when I was storing it. The feet are velcro secured and right on the unit, its really nice that they secure so well, and they are always right there to use. That is one of my favorite things about this panel is that its all " Self contained " I do not need to look for feet, cables, or anything, because its all right there. 2. Well made The construction is very sturdy, I've been using it for right around a month at this point and it still feels and looks new to me. Its very easy to clean/keep clean, the material is strong. I really love the zippered pockets and velcro hold downs for the feet. It keeps it all "Tight" and very quick to store and grab when I want to use it. 3. Comes with cable and adapters I really liked how it came with extra cable length, and adapters for any device you might want to charge. I have some older power stations and was really surprised to be able to just directly charge those. It really made it easy to work it into my solar setup. It saved me money too. 4. Great power Its a 100watt panel and I felt the output was very nice. Being so portable, it was very easy to set it up in the best location for the area I was set up in. I used an extra 20 ft cable I had as well, so it is always optimal. This really was clutch for me as it kept me from always being "Just about" there to fully charged on all my stuff. It is really perfect for my application. Overall, I love this panel. It is so thin and lightweight, it just fits in a little niche I had for it like a glove. I have not had a single issue with this unit, and I cant imagine being without it anymore really. Just being able to add that extra wattage with the perfect output to my setup sent it to total perfection. Its just so nice how it folds in half and protects itself. I would really give this a try if you want something, Portable, well built, and effective. Something else to add. I have been just grabbing this single panel and a power station for car trips and even a short hike. I really love the portability of this VS my massive fixed panels.