Solar Charger Power Bank 36800mah,18W PD 5V*3.1A Fast Charging,QC3.0 Portable Charger Solar Power Bank,IP67 Waterproof Camping Gear Accessory (Green)

These are great to have when you're away from the house. Perfect to power something while camping, like USB lightbulbs. Small and compact, but have plenty of power. I have another 30000mah, and this one is shaves off a 1/4 of the size. It still has the 2 USB ports, charges through micro-usb, and double flashlight on the front. And those lights are bright. It's a slow charge through solar, but if you're outside for the day it works really well.

Was able to charge phone few times, charging with solar ll take few days in ideal sunny conditions

I have two from two different sellers and honestly this doesn't last as long with the same amount of power. I plug it into emergency lights so I tested both and this one died about 4 hours before the other one. The upside is it does charge super fast and obviously it's solar so that makes it worth it. I think the price is incredibly reasonable.

I know the rated amount isn't the actual power storage, but still I expected at least 10,000mah. The power bank is actually about 5500 mah at best. With a full charge on the powerbank (all 4 lights blue) I charged my 5000 mah tablet to 100% once and put 15% on my 2500 mah phone before it was drained. Charging by the solar panel is a very long and slow process, even in the bright Az sunshine. It's been 12 hours and the 1st light still isn't lit up. Good thing it was so cheap. A little disappointed. I was hoping to take advantage of it being sunny all the time here to charge the battery. UPDATE: I've had it in the direct sun for 36 hours, plus under a high output grow light for 36 hours and it doesn't seem to have charged at all. Charged it fully via usb and it charged the laptop to only 70% before it ran dry. That makes it closer to 3500mah.

I use this maybe once a month. Anytime we will be outdoors for some time or at amusement parks. Sadly I purchase it July 2022 and it no longer holds any type of charge. I can leave it charging all day and once we use it we are lucky to get half a charge on a phone. I assume it would have lasted longer. Especially since we don't use it excessively

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Back story, I have purchased 2 of a cheaper brand. Well, come to find out that they didn't work as described. I even bought 3 more for family Xmas gifts.I gave lousy presents this year. What a waste! NOW, I bought these as replacements. Yes, a little more $$$but, worth it, honest. They take about a day to fully realize charge. In Bright sunshine.You then can use these as portable power bank. OR, hook up your phone (it charges 2 items at a time) and the sun charges them without depleted power of the bank. These also can be charged with a USB. Which I use for initial use. Charges faster than solar. Then you keep them charged for whatever...mine sit on my bedroom windowsill. I REALLY LOVE THESE. Good to prep and store for the price. Awaiting for power outages and man made chaos. I truly recommend these. TEL

I bought this for a camping trip. It was good to have since we had no electric. Better than nothing at all. The first couple days it charged my phone to full battery, but after a couple days, it only charged my phone half way.I kept this in the sun all day and would charge at night, so it should have been fine. Was disappointed it didn’t work great.