BLAVOR Solar Power Bank, PD18W QC3.0 Fast Charging 10W Wireless Charger 20000mAh Solar Powered Powerbank with Type C Input/Output, IPX5 Waterproof, Camping Flashlight, Compass, CarabinerGlobal Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

I bought 3 Blavor powerbanks to try them out for backpacking. I got the 10,000 and 20,000 solar, and the 16,000 5-panel folding. THis one, the 20,000 is a good choice, but not always the best choice.First, it's rugged, great for hiking. THe solar puts out 300mA, will will take 67 hours for a full charge, and put on 1.5% per hour. It could put 60% into my Galaxy phone in 8 hours in full sun. Slow, but acceptable in an emergency, but not sustainable for an extended trip.What's great about it: power delivery. There was an older version of this powerbank which only output 5 volts 2 amps, but this new one supports 18 Watt Power Delivery. It can quick-charge my phone, and quick-charge itself. It has Qi wireless, which is critical for backcountry safety, because charging with a cable can fail with dirty or broken connectors.I measured the capacity at 64.6 Watt-hours, which is 17,460mAh at 3.7V delivered. Not too bad!It's heavy at 510 grams. Not the best for hiking, as 20,000 mAh is quite large, and more than you need for a day-trip. The 10,000 powerbank would be better for hiking, but that one doesn't have power delivery, just 5 volts. Then there's the 5-panel folding 16,000mAh, which is better for backpacking, because it can actually recharge the powerbank, but that's also 5-volt only. Too bad!So this powerbank misses the mark, because it's too big and heavy for day-trips, too weak on solar for extended trips.

Blavor is listing real specs on the product page along with realistic expectations such as making clear the limitations of the solar panel on this unit "...that the solar charging is just an additional feature, the actual result may not be as positive as you expect due to the large capacity, small panel size" is a very honest accurate statement missing from so many sellers of these type units. Refreshing. It is actually the best quality solar panel I have seen on these type units, however a small 300mA panel will only be a trickle charger, but still nice to have handy as it is pumping some energy into the batteries. My background was electrical design engineering, I love solar power and have many large arrays and portable solar units.... so I know a little more than the average consumer about what to expect. All my portable solar chargers work to charge this unit. The Blavor power bank received was of higher than typical build quality and weighed in at about 465g. I tested the capacity (after three cycles of full charge and discharge to bring capacity up in a new lithium battery) and it met its capacity rating. Perfect for outdoor actvities such as hiking, camping, and as a robust travel charger with its re-enforced rubber corners adding to impact resistance and its water resistance to common drink spills etc. It is not waterproof, so think rain drops or splashes. Certainly I would trust its drop and water resistance over my unprotected Anker banks. The simple compass tested accurate for what it is.A few very minor issues with my unit were the living hinge for the USB output port, it ripped easily and is barely hanging on...so you may want to reinforce that with some mesh tape and shoe goo, or even a fishing line loop easily sewn in so that it dosen't get lost. I'm sure they will fix that minor issue, but for now use your ingenuity, especially if you are a maker ;) The flashlight was a bit into the blue tint cool white spectrum and for camping this really needs to be more warm white (personal preference) or at least neutral white. I may void my warranty and replace the blue tint cool white LED with a warm white one ;) Also the fast input charging via USB C or micro USB on mine is picky as to what charger it will let fast charge it (likely a fluke issue with my unit and further tests pending, it will "quick" charge at 5V almost 3A if you have an adapter rated at 5V 3A). The USB C output fast charges all my devices fine, and all other USB outputs charged at specification as I tested each one carefully over several devices with USB testers and known reference devices. The wireless charger is very good and charges through my thick otterbox phone case, it works with everything that is wireless charging that I own...Unit has a flat rubberized ring on the wireless charger to help resist slipping of a device or slipping on a surface when solar charging. Low power wireless ear bud cases performed well on the wireless charger. Overall, it is a feature rich soild unit. The protective Blavor branded box and packaging is top notch, hard for unit to be damage in shipping. I plan to buy another one when they come back in stock and encourage other folks to support an honest seller.

Couple of things to know about this charging pack is that it's very, very handy. 20k mAh was enough to keep my device fully charged on a camping weekend with plenty leftover (I use a Galaxy S8+).My favorite thing about it is the wireless Qi charging. I can put my device on it and as long as it's "mostly centered" over the middle ring it'll start charging my device. For a test, I put my phone at 25% battery and it was able to get it up to 100% in around 3 hours. In addition, the wireless Qi charging will remain active even after you take your device off it for a short period. This means I can pick up my phone for a little bit to check messages and set it back down without having to tap the button on the side to reactivate the Qi Charger. The only downside is that since the Qi station is on the back of the unit so you cannot collect solar energy while it is charging your device, but to accommodate something like that would require a redesign of the product.Wired charging is also possible. It took less than an hour to charge from 50% to full when using my USB Type-C charger. I still much prefer the wireless charging capabilities as it makes things much more simple, especially without having to worry about misplaced cables.The Flashlight is super bright and easy to turn on. Just hold down the Orange Button and it flicks on with strong intensity. To change the blinking pattern, simply tap the Orange Button once to cycle through the modes.The compass is handy, and I really like how it's built into the device rather than onto a carabiner clip. It doesn't exactly show which way is north a lot of the time, but it does get the general direction. Even then, the compass is not the main purpose of this device, it's a small handy feature.The carabiner clip is most likely my second favorite feature. I love how the clip is centered at the TOP MIDDLE of the device instead of a corner like other solar collecting power banks. This makes it much better and easier to stay clipped to my backpack and NOT flip around, which would interrupt the solar collection process.If I had to pick anything to complain about, it would be the time it takes to charge. But that cannot be helped. 20,000 mAh is a LOT of power. When I first got the device it was around 25% and it took overnight to charge completely. But with the solar panel keeping the device topped off and daily usage, it easily lasted me through a camping weekend.