100W Portable Solar Panel for Power Station Generator, Waterproof Foldable

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.

At first glance, this Grecell 100W looks like a copycat of the Jackery SolarSaga 100 with its color scheme, folding design, and handles that close magnetically. IN A NUTSHELL The Grecell 100W, like the Jackery Solarsaga 100, just folds in half and is held together by strong magnets, accented by a rigid, bright-orange carry handle across the top. Within the built-in carry pouch is a built-in MC4 connector cable ready to be plugged into a battery power station with an appropriate extension cable. On an overcast morning, it had achieved as much as 59W of output whereas the Jackery SolarSaga 100 got 53W. The differential was small, and so I tested it again on a clear, sunny day. The Grecell achieved 84W and the Jackery got 72W. That's pretty good efficiency as most monocrystalline solar panels lose at least 25% due to power conversion. A built-in kickstand helps orient the panel at an optimal, 45 degree angle for maximum sun exposure, and a built-in pocket allows for cables to be stored. Note that this solar panel is NOT waterproof. It should be kept out of the rain, but then again, if it is raining, the sun probably won't be out. Multiple adapters are included and I tested connectivity with Jackery, Goal Zero, and an off-brand Rockpals battery power station. All three worked with this panel as expected. As long as the power station is able to accept the panel's 20V of output, you are golden. I also connected it in parallel with the 18V Jackery SolarSaga 100, and that took the panels from 53W/58W to a combined output of 102W. You should almost NEVER connect multiple solar panels in sequence/a series -- you should almost ALWAYS hook them up in Parallel with a Y-split or combiner cable. (Goal Zero has a 4x combiner cable to hook up to 4 solar panels). Overall, the Grecell 100W solar panels are beautiful, sturdy, efficient, and portable and worked well with a variety of battery power station vendors and solar panels. Having the MC4 connector out of the box makes the Grecell compatible with an industry-standard connection, but some power stations may only accept APP (Anderson) connections -- in that case, use the included MC4-to-APP adapter cable. TIPS/NOTES - Panel lifespan: Panels generally die/become inefficient between 25-30 years -- They may last longer, but would produce less energy - Solar panels work best outdoor under full sun exposure -- Although the panels will work under the shade or behind windows, charging efficiency is greatly diminished -- Panels will STILL charge under cloudy conditions. So, keep the panels out even if you do not see the sun -- Operating temperature range: 14F to 149F (-10C to 65C) -- ONLY the solar panels can (and should) be directly under the sun while charging a battery power station --- Keep the power station in the shade to prevent overheating - ALL panels must be uncovered to generate a charge -- Do not completely cover one or more panels or the charging will stop - To maintain solar efficiency, the panels should be kept clean -- Remove dust with a soft brush and wipe with a damp (NOT wet) cloth -- Any residue, such as tree sap, should be removed as soon as possible -- Keep panel away from water that spray at greater than 60 degree angles -- Keep panel away from low-pressure (or stronger) water jet spray -- Do not submerge the panel under water -- Panels will work longer if they are kept away from water altogether - Do NOT bend the panels more than 30 degrees or risk breaking them! - Keep the panels away from fires and heaters CHARGING TIMES When using solar panels to charge battery power stations, the amount of energy the battery may accept could be throttled to prevent overcharging. Example: Jackery Explorer 1000 slowed incoming wattage from 70-80W to about 50W once it reached 70% battery charge. HOW MANY WATTS DOES A DEVICE USE? - Calc: Watts used by device = Voltage x Amperage - If a vacuum is 120V and 9.5A, it uses 1,140W HOW LONG DOES IT TAKE TO SOLAR CHARGE A BATTERY POWER STATION? - Calc: Hours to charge battery = Battery capacity (Wh) / (Panel Wattage x [0.5 or 0.75]) -- In a perfect lab environment, solar panels charge at the indicated wattage (ie. 100W) -- Expect to only receive 50-75% on a good, sunny day (ie. 50W – 75W), depending on environmental conditions, panel's age, and component quality -- Tip: Even if it is overcast, the panels will STILL collect solar energy. Keep charging! - Charging with a 100W solar panel -- Jackery Explorer 500: As fast as 6.7 hours [500 Wh / (100W x 0.75)] -- Jackery Explorer 1000: As fast as 13.3 hours [1000 Wh / (100W x 0.75)]

UPDATE: MARCH 18TH 2025.. Thank you, Grecell for your endless commitment to excellent communication and customer satisfaction !! Anyone who's looking for quality, price point and an excellent product line including the Grecell power stations, look no further, this is the one that will not let you down. My correspondence with Amy at Grecell has been amazing, my new panel arrived yesterday for a no hassle return/exchange, as expected, i hooked it up to one of my Grecell T-1000 stations and boom, in midday mediocre sunshine, the number of watts soared beyond belief. If there's anyone that's a stickler on all things solar, it's me. Through the 110°+ unforgiving blaring sun in the Arizona desert months, the black oxford cloth to the panel never faded, snaps never faltered and the Grecell line just couldn't disappoint. Look at the nomad channels on YouTube and they'll even describe Grecell being a heavy hitter equal with jackery and bluetti, but, Grecell rises above the competition with their panels. I ventured from the 200 watt portables to the 100 watt panels so my aging bones could spread the panels around easier catching every ray of sunshine. Weight: 10 pounds for the 100 watt panel and close to 20 pounds for the 200 watt, this speaks volumes of the quality and durability. All the assorted connectors in the zippered pouch make its case for a no brainer of a must have, plug into all power stations. I am not a compensated customer, I'm writing this detailed review because when i believe in a product, I will share the positive experience with other potential buyers. I'm all about customer service and follow through vs being ghosted by companies who fall flat, but, this company has all the right moves defined, explained and remedied. Shipped out of California with a very fast delivery to me on the east coast of New England. Highly recommend to all ⭐⭐⭐⭐⭐ +++++++++++±+++++++++++++±+++ JANUARY 2025... First of all, Grecell customer service is second to none, just amazing, day or night including weekends, they are so quick to communicate and are always consistent with getting back to me with my questions, troubleshooting or to feel satisfied. I bought this 200 watt portable solar panel in October 2023, and they stepped right up with making things right with a hiccup in the product. I've purchased their power stations and their solar panels, both are extremely durable in extreme environments...great quality, flexibility, value, sleek design, pricing, quality materials and of course their renowned reputation of being a Grecell product. 10 Gold Stars for the manufacturer and the follow through customer service. ------------------------------------------ 0ctober 2023....I just ordered this 200 watt solar panel and received it a day earlier than expected. Sweet. I recently bought the amazing Grecell T-1000 power station to go with it so i thought I'd stick with the same brands to connect. This is one beefy, lightweight, rugged, well encased product. The pocket to hold the wires are a plus. The thick canvas snap straps will provide that extra durability. I like the instruction booklet, quick steps and to the point. The handles are very grippable. This purchase was definitely overdue. The customer service is known for being spectacular, two other people in my extended family have the whole Grecell set, Word of mouth is everything to me. Price point- Bingo, best deal.

I bought this 240W foldable solar panel mainly for camping and as a backup at home. It’s simple to set up, just unfold and face it toward the sun. The foldable design makes it easy to carry, and it doesn’t take up much space when stored. So far, it has worked reliably with my power station, giving steady charging during sunny days. The build feels sturdy but not too heavy, and the waterproof feature is a nice extra for outdoor use. I like that it comes with multiple connectors, so it’s compatible with different devices. Overall, this solar panel does what it promises. It’s not meant to replace your main power, but it’s very practical for camping, RV trips, or emergencies. I’m happy with it and think it’s a useful and reliable choice.

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.

Probably works pretty well but the stand mechanism and assembly process are clunky and unreliable. Rule 1 of solar power is You Need More Panels. This helps solve that problem at the expense of simplicity of implementation

A very good, useful, handy product. I get 60-80W power on a sunny day. Easy to carry. Cable comes with multiple connectors. Very useful in charging solar inverter. Worth the buy