DOKIO300W 18V Portable Solar Panel Kit Folding Solar Charger with 2 USB Outputs for 12v Batteries/Power Station AGM LiFePo4 RV Camping Trailer Car Marine…

The media could not be loaded. ****Update 4/30/24I requested a replacement. Amazon sent me new panels. The seller also reached out to me. Panels were delivered the next day and so far they work great. They charge my Lifep04 100Ah battery and I can run the camper AC on a sunny day with no problem while keeping the battery charged.Update****Solar panel burned after the second time charging a 12V LifeP04 battery 100AH and a 2500W load....See last picture. I ordered a replacement will update when I get it and see how long it lasts...************Not bad, they are easy to move around. No back legs to hold them upright. No holes to hang them from a wall. The Controller is not the best, but a better one to take advantage of the panels.Tested them for an hour, battery went from 11.9 to 12.6 V within 30 minutes on a cloudy day. I haven't tested this panel fully yet. Not bad for the price I paid.The connections are simple, however I had a reverse polarity within the system and I had to switch my battery cables in order to make it work. No a good thing that's why they send you an adapter. Quality seems good, they are flexible however don't bend them to much or they will crack. Cables are short, order extra cables....

I’ve been working with solar panels for a few years and found them very useful for maintaining my telescope and ambulance batteries while away from city lights. The DOKIO panels I’ve purchased in the past, those with the full aluminum frames and glass, worked well with an MPPT controller, but I needed something light-weight and easy to tuck away, so I purchased this product. The panels meet my expectations, but not so much the PWM Controller, nor the cabling (wires). Although the Controller is rated at 20 amps, it’s the size of a pack of cigarettes and the wiring is too small, so I have my doubts it will work well and last. I won’t rate it here, because I have yet to give it a workout. If you want to get the most out of the panels, then ensure you purchase a minimum of 10 AWG (8 AWG recommended for long runs over 20 ft) wire that runs from the panels to an MPPT Controller rated at 30 amps to be safe. If the panels are charging a battery with a full 300 watts of output at 14.5 volts, then it will have just over 20 amps of current flowing and I never recommend using a controller that is running at its maximum rating like the PWM Controller shipped with the panels. Electronics should always be designed to handle more than its advertised maximum, just like mechanical items should always be built to handle more torque, weight, or sheer force that its rating. If DOKIO sold this package with a 30 amp MPPT Controller and 10 AWG gage wire, then everyone would be happy with their purchase. I also plan to use Scotchgard Outdoor Sun and Water Shield on all cloth surfaces to give it some UV protection (don’t get it on the panel surfaces; use a brush around the panel facing). The panels are flexible and don’t prop up against surfaces without flexing, so I built a frame out of 3/4 PVC pipe (engineered for sturdiness) that can be angled to the Sun and moved when necessary. The frame breaks down to 19 and 23 inch lengths for portability in a small pouch. I do recommend this product, but be prepared to spend a little more to suit your needs.

UPDATE! My original review follows. I am pretty happy with this solar setup. I am NOT into comparing specs or having the latest and greatest, etc.. I have owned this setup for over 1.5 years and use to power my 26 foot trailer with 2 cheap Walmart 70ah batts. I use the toy-like controller included. I camp pretty frequently and would say I've used the panels for 3 months combined days. I am ok with the setup as it is affordable, flexible, easy. My past 45 lb setup with hard frame got to be a chore. These charge my batts within a couple hours in good sunI recharge daily. Panels could use an uptick on ruggedness. And grommets, attachment points so you can hold them in place. Laying on ground is often dirty/dusty, standing flexible panels in wind, not so good. You can build a frame, I just haven't. If you're looking to spend little and want decent capability, these are worth a try. If they last me another 1.5 years (for a total of 3) $300 bucks total, not bad. I think they will last longer if cared for.Original review. Just bought this and used for three days. Delivered as expected. Safe packaging. The panels seem of good quality, though I can see what others have mentioned about possibility of material holding panels breaking down. The photos in the advertising are misleading: these panels will NOT stand up flat like that without considerable support behind them. Support you will pay another $50 to $100 to build (unless you're very crafty) They bend very easily and care is necessary. I plan to take this inside during inclement weather, even wind. I have 2 cheap lead acid batteries that had run out of power the night before due to furnace use in cold weather. These panels charged those batteries fast, and my heat lasted through the night next night. I had a hard framed heavy Zamp 200 watt suitcase a few years ago and to compare I'd say this was considerably faster. I don't measure amps, all that stuff. I want to plug it in and get back to what I'm doing for fun. And there's my single largest disappointment with this package... oddly, Dokio failed to include a cable with the XT60 connector for their controller and an SAE connector for the port on the side of probably 3 million travel trailers out there, like mine. I'm no pro, and so maybe I am missing something... but who wants to take their battery covers off and clamp the controller to the battery each time they want to charge (often more than once a day...)? I really want that cable, say 10 to 12 feet in length, to make this easier for my style of use. The PWM controller that came with this unit is pretty fragile looking too, but it seems to work and I wanted to use the kit as is for awhile. Anyway, for the money, this kit is a go, so far. I hope it lasts a few years.

Routinely see around 180-220 watts in clear conditions. I use mine to charge a Bluetti 550. It will bring it from dead flat to 100% in around 4 1/2 hours, if I reposition the panel ever so often. The included charge controller is handy as a backup if my main controller fails. Getting the panels perpendicular to the sun is tedious, but overall a great product.Update 21 Dec 2024: 2 1/2 years after purchase it still works well. Nothing has failed, all the stitching is still intact and works great, but maximum power has decreased some. With clean panels perpendicular to the sun I now see a max wattage (as measured by the Bluetti 550) of 145-160 watts. In 2 1/2 years, I have used these panels around 780 hours.