X-DRAGON Solar Charger, 70W Foldable Solar Panel Charger (5V USB with SolarIQ + 18V DC+ Parallel Port) Compatible with Notebook, Portable Generator, car Battery, Cellphone, Tablet, and More

Used the panel in the prairies during winter, January 8th to be exact when solar output near its worst. It charged up my phone laughably fast while I was tethering. I'm kicking myself in the ass for buying 1 Jackery instead of 2 more of these. A Jackery isn't even water-resistant for christ's sake so in the rain you're screwed. With the Dragon, you need to cover up the junction box but any person with a bit of common sense can jury-rig a bag to fit over it so that's negligible. The design is sold, weighs roughly the same as a standard laptop. This is probably the best deal on Amazon for a portable solar panel, and it's so much more portable than the Jackery. Does anyone want to trade their Dragon for a Jackery?

Update Sept 13 2021: I've contacted Amazon, these panels are falsely advertised. Under no circumstances will you approach 70 watts on one panel. If you read the information on the panel itself, @18v 3A the max wattage you can expect is 54 under perfect conditions, account for efficency loss you're @ about 30 watts which is right where both of mine sit. $189 for a 30 watt panel? No thank you. The actual output is 35% of the advertised wattage, at best.Update Sept 12 2021: Looks like I've figured out the issue, they're advertised as 70 watt panels. That's their open circuit rating, the second you apply a load it will immediately drop by a huge margin. If you're using this with a solar controller for example to charge a deep cycle battery like on a boat, you'll get a maximum of 36 watts under 100% perfect conditions.Update Sept 8 2021: just got them paired to my solar generator and I have to say, not too happy. Probably going to return these. I have both hooked up in parallel and can't get anywhere NEAR 140 watts combined. Both panels together can't even hit the 70 watts each is rated for, with my bluetti sp200 at the exact same time of day I can easily pull 150 watts. Going to contact support it's as if there are a bunch of broken connections within the panels, if I don't have all of them deployed none of them work.I just got mine outside on a sunny day for the first time and hooked them up in parallel, have the 12v battery clamps hooked to a deep cycle battery and it seems to be putting out very high voltage, I've pictured my meter at 16.53 volts, it's still climbing as I write this review. I'm not sure if this would be safe to leave on a battery unattended. It seems to have stabilized at 16.61 volts, on a fully charged deep cycle battery. I don't know a whole lot about solar and batteries but again, seems high. My truck and other equipment charges at 14.7 volts.

So I got the 70W folding charger and it's quite compact and seems durable.I'm in ontario Canada, so I might not be getting full power? I've gotten 40 wats of the 70 on my jackery explorer 300.Been about 30 minutes in good sun and I've charged it 8%. Not too bad 😉Definitely the best portable panel I've ever purchased, but im curious why I'm not seeing the full 60-70 watts? Could be because I'm in Canada.Still happy. 4.5/5 would recommend

I'm trying to charge a Jackery, have the cross over connection used to go into the Jackery and the Input keeps reading 0... the panel and Jackery are brand new so a little concerned.. please help otherwise maybe I got a lemon and will have to return. Thanks

Disappointing output, far from the claimed 70 watts. My Jackery 500 will take 85 charging watts max but this solar panel never put out more than 30 watts, usually 25, even on a mid-summer day at solar noon.