DOKIO 300W Portable Foldable Solar Panel Kit (19.3x37.4in, 15.2lb), with Separate Controller and Dual USB, Monocrystalline Charger for 12V Batteries, Power Stations, RV Camping Emergency Use

As someone who loves spending days off-grid, I was looking for a reliable source of renewable energy. This solar panel kit has delivered beyond my expectations. When I first unpacked the kit, I was pleasantly surprised by how lightweight and foldable it was—perfect for throwing in my backpack or car without taking up too much space. The setup was incredibly straightforward; I simply unfolded the panels, positioned them to catch the sun, and connected my devices. It felt almost too easy! On a recent four-day camping trip, I had the chance to put it to the test. Each morning, I set up the panels next to my tent, and by noon, I was able to fully charge my portable power station. This meant that I had enough energy to keep my phone charged for navigation, power my laptop for a little work, and even keep a small cooler running to store food. It was fantastic not having to worry about running out of battery. One evening, I decided to try charging my lights for the campsite. Because of the DOKIO kit's efficiency, I had all the power I needed by sunset. I could bask in the glow of my solar-powered lights without fearing I’d drain my resources. The durability of the panel kit also stood out. It withstood a slight drizzle one day and still performed beautifully without any issues

I received the solar kit last night and tested it out from 4PM to 5PM this afternoon when there were about 3 hours of sunlight before the sky went overcast again. The solar panels were directly connected to an Ecoflow power station. The highest solar power that I saw was displayed on my power station was 118W. The highest solar power that I saw was displayed on my iPhone was 113W. The test continued until the power station stopped charging at 100%. The test confirmed this solar kit worked as expected, right out of the box. - Biggest pro: easy to carry and easy to use. - Biggest con: no kickstand or equivalent!! - Confirmed: peak power can reach 118W - Unknown: durability One thing that deserves extra attention: just as demonstrated in 1 of the product videos posted here at Amazon, this kit's solar output is *very* sensitive to how the panels are positioned against the sun. Simply by walking from one side of the panels to the other side, briefly casting a small shadow on the panels, I saw the solar power reported on my iPhone drop from 100+ to lower than 60W immediately and then bounce back. I think this is a good buy. Much more portable than my heavy Ecoflow solar panels. I plan to permanently leave them in my car.

This is a great lightweight kit. You can throw it in the trunk or back seat. I get enough voltage and amps to charge my 100aH LifePo4 battery with just 2 panels exposed to the sun even in low light. Something not mentioned but is an important feature, the controller has cross polarity protection and corrects if you plug in something not correctly polarized. I would have gave 5 stars except for 3 small things. The controller is a little hard to operate, the SAE plug is very loose and falls out easy, I had to buy a new cable to replace the Original. And it would have been nice to have grommets along the edges to hang from a rope or hooks on a tree or wall. This works way better than I expected.

Very nice set of solar panels just wish they included a set of stands because they are pretty inefficient without putting them on a proper angle to the sun. The company sells the stands separately. The stands they sell are alright but where they weld the rods to breaks easily. I posted a bad review on the stands and the company reached out to me and are sending me another set so they are very receptive to the customers needs. When used at the proper angle these panels deliver. They put out a respectable 8.8amps @ 22.5 volts open circuit. I made this setup more efficient by using a 12gauge SAE extension and a portable MMPT charger as the one they provided is adequate but I need every watt these panels deliver to recharge my Ham Radio battery’s out in the field and and MMPT charger can keep delivering power even on cloudy days . The panels are nice and light so if you have to trek your gear by carrying it a distance this is great and was my main reason for purchasing this brand. They are very thin and folded up are only about 2” thick and about 9 lbs with the controller and cables. They have a nice storage compartment built in. If I can make one suggestion to the company to make this the greatest system. Build stands into the panels backs like a photo frame has so you don’t need a set of stands. It would make these truly light and an even better product. These panels charge a 12.8 volt 20 Ah LIFEPO4 battery from a shut off voltage of 10.1 volts to a full charge in about 2.5hrs in direct sun light. The only gripe that I had was setting the provided PWM charge controller to B4 so it could charge LIFEPO4 batteries. Very confusing but I finally did it. This is one of the reasons I purchased a nice MMPT charger dedicated to charging this type of battery. You can’t go wrong buying these great panels. They also provided a nice set of accessory’s with these panels including a set of alligator clamps and multiple charging plugs. Very well thought out accessories.

Performance: I bought 2 of these for temporary use on my sailboat. The idea was that I could normally keep them stowed and set them up when at anchor to help keep my batteries charged. I've used them for about 6 months now and I can definitively say they are terrible. The absolute maximum power I have ever seen them produce in any sun condition is about 50-55% of what they are advertised at. The normal amount with no shading and pointing at the sun is about 42% or 125 watts. I didn't expect these to fully live up to the 300 watts they are advertised at but this is pathetic. I have other panels that will produce as much actual power as these will that are MUCH smaller. Convenience: The fold up design of these panels is the primary convenience factor that I bought them for. They do fold up and stow away as I needed them to. Having said that, they are pretty large even when folded up. These panels have no holes for tying them down or securing them in any way. They are rather difficult to secure easliy. This is a real pain for a portable panel. Durability: These panels are semi-flexible and seem to be relatively tough. They have survived being blown over a number of times due to the lack of securing points. I was concerned they would be damaged but their power output is no more abysmal than it was when they were brand new. The weathering of the fabric that holds these panels together is really bad. You would think that fabric that makes up the frame of a solar panel would be UV resistant. I assure you that it is not. These panels showed significant degradation after the first couple months of use. They still look new on the back but are falling apart on the side that faces the sun. The 12V plug that attaches to the panel is not color coded or marked in any way which makes it easy to connect it backwards. I spent a considerable amount on my two panels and I am very disappointed in them. They both perform exactly the same so I don't think this is a case of a defective panel. I wish I had bought different panels.

I've only had this for a couple of days, but it tests out great. I plan on using this primarily to top up the batteries in my RV. But secondary use will be to recharge my batteries when doing portable amateur radio. First pic shows my testing setup. I ran the solar into a watt meter, then into a 16 Ah LiFePO4 battery. The battery was nowhere near depleted. On a bright sunny day at about 11 a.m. I set this up. For those that don't know, LiFePO4 batteries have built in battery monitoring systems that control the charge going into the battery. From the 2nd pic, the panels were generating 91.2 watts of power at about 6.5 A. It brought that 16 Ah battery to a full charge in just a couple of minutes. Last pic shows the mod I had to do on the cable. Like many hams, I've standardized on Anderson power poles for power connections. I just clipped the cable with the battery clamps and put on power poles. The negatives I see is they are slightly heavier than I expected. I also don't like they don't come with the Anderson power poles already installed. Another is that the charge controller feels cheap, but that's what I expect from an inexpensive solar system. But these negatives don't take off a star. I have a camping trip coming up. I'll update the review once I return and have some details on how it does on keeping my RV battery charged. Edit: we camped for a week without hookups. I was able to put the panels on top of out awning for the entire day and kept the camper battery topped up just fine. I was also able to charge a LiFePo4 battery to run my ham radio rig the entire week. I'm very happy with this solar set up. Picture 4 is there because there was a question asking how big the controller is. It is approximately 4 3/4" x 2 3/4" That's a standard playing card for comparison.

they are not 300 watt panels. i suspect they are 240 watt. i ordered three sets of these, they were all supposed to be new, they were all used, but in good shape. two of the sets out put is exact, one set is about 6% less than the other two for what ever reason. this folding panel kit inludes everything but the battery, but the cables are so short you will be sitcking your batter out in the sun to get charged, same with the charge controller. you can buy extensions but you need to know these panels can and i can confirm will output 17 amps @ about 13.8volts, so be mindful of your cables, that is a fair amount of amps for such low volts. the panels are heavier than i thought they would be, which can be a good thing, they fold up and can be stowed easily, but this is also a problem. they absolutly need to do be flat and angled towards the sun for good power production, like all solar panels. i think everyone leaving reviews talking about 140 watts is expecting good performance laying flat, which i understand almost all youtubers show them flat on the ground. so, they need to be propped up and angled correctly, this panel is large and floppy. i built a stand for them and guess what, now i have to tote this stand around with me, making these panels not so portable and easy. glass panels can be leaned against anything and they hold their shape, these dokio panels will flopp and bend under their own weight almost like a wet peice of paper, and they can crack if you arent careful. also, just 4 inches on grass shadow on one panel will reduce its output by almost 1/4. it appears i got more power than anyone that mentioned actual stats, and i used my own equipment to measure this. the dokio pwm controller lies, it will claim 250 watts when i am in fact getting 220 watts for example. i have all kinds of stats i can share, and i can tell you i think i found the cells these panels are made of and i think the manufacture lies about the cell stats which leads to dokio's numbers being wrong. i will tell you just a few more stats: laying the panels flat in the grass i got (not the best day for sun) : 12.72v x 7.16a=91 watts, put it up on my stand and i got: 12.98v x 12.73a=165 watts. i connected two dokio 300 watt panel kits in series on the ground and only got 12.79v x 11.01 amps =140 watts lol. one panel positioned correctly does better than two laying flat, i think the above tests were done around 2pm northern indiana in late february on medium partly sunny day using included pwm controller. since then i have had better tests and better days of sun and found this panel performs just as good on the included pwm as it does on my mppt charge controller. max power i have seen from pwm is 220 watts and about 13v 17amps= 225 watts on mppt, albeit using perfect angle charging a battery with a huge load to ensure max output from panels and controllers. this panel i suspect is made up four panels and i suspect the are actually 60 watts each not 75. also they are wired in parallel, which is not good as it shoots the amps up and while we want good amps it is important to know how V x A = W and we should have high voltage and lower amps going to the charge controller, then let the controller step it down to 12v for the battery. i wish i knew more about the internal construction as i suspect if you were to rewire these in series and ran them to a mppt you could get a 50 foot cable and get about 230 watts from them with the controller and batteries inside where its at least dry and out of the sun. i am returning these as i can and have got three glass panels that will give me about 276 watts wires in series with 50 foot cable run, according to my current test data, for about $240 and a mppt controller for about $100, which i already had for a total of $340 and they can be leaned against anything but i will continue to use the stand i built for the dokio panels. the dkio panels are over priced, they lie about its specs, they are floppy and you need to stand them up, right on the main selling page they say dont even leave them out side for one night which concerns me, the glass panels i got come with a 25 year warranty. i wanted to add that i did more testing today and two rich solar 100 watt panels produced about 98% of the power of this "300 watt" kit. i still like this kit and i bought 3 and decided to keep one, may toss it in a vehicle or take it to work for emergency power, especially since we are headed into tornado season now.

This review only applies to the panels themselves, I do not use the rest of the kit. First off, for those saying these don't product 300w, you need to understand solar panel ratings. They will produce 300w in more or less perfect conditions. So for example mid day late summer clear Texas sky pointed right at the sun absolutely they produce 300w (each set). I only use the panels, not the other stuff as I have a parallel cable setup with a pair of these panels and in the right conditions I get a full 600w out of 2 of these into my AtemPower DC to DC charger / MPPT charge controller. Your limitations are going to be environmental conditions, and your charge controller / power station setup. I run my camper electrical, 12v fridge, USB chargers, laptop charger, CPAP fans etc... and this has no problem keeping the batteries recharged / topped up. My only issues, and they are kind of the nature of the beast as it were are... #1. No included / build in kick stands to set the panels up to actually face into the sun directly. No big deal. Dokio has them available through Amazon, just don't forget to buy them, and carry the hex key with you... #2. Water resistance. You are NOT going to be charging up in a deluge no matter what, and Dokio claims their materials are water resistant, but immersion can be a problem. Keep the connectors pointed to the TOP of the panels, and if ponding / flooding is a possibility take them down and move them inside. Simple enough right? I opted for portable panels instead of roof top mounted panels on my camper to allow me to move the panels as the sun moves to keep them oriented to the sunlight to keep charging going. These are great for that, until some jacknugget pulls his big a-- fifth wheel just to your south giving you nothing but shade. Not the fault of the panel, and remember, portable, just move them! Liked my first set so well that I did get the second and built the parallel cable, so instead of 300w coming in at 18v, I now have 600w at 18v coming into my MPPT controller. (33-1/3 amps). This came with a simple MPPT charge controller, and a bag full of adapters for various power stations, none of which I use and I am not reviewing them. My only desire for any kind of upgrade is, I wish they made these in a 500w capacity, so that I could pair up 2 of them into a 60 amp controller and get 1KW into my camper, 600w is good, 1KW I can at least run AC for a while on...