Used this out of the box when my wife's phone was down to 20%. She left it charging in her gym bag while she went for a swim. By the time she was done with her workout, the phone was almost completely charged. She's keeping that one, so I naturally (and happily) got a second. The charge-percentage readout is really useful for telling my two chargers apart, or at least which one has more charge. My blue solar charger only has a few tiny indicator lights that blink (still not sure how to read that pattern) so this little yellow powerhouse is what i reach for out of convenience, and for faster charging. The only downsides i can find are (1) it's a little heavier than it looks, but still easy to fish out from the bottom of a gym bag or backpack (2) It takes a while to charge to full capacity, so plug it in as soon as you get home, and you will have plenty of charge in a couple of hours (I could be wrong, I was streaming action movies at the time, and only checked the power level when the bad guys lost). But once you are at 100%, you should get at least two full charges out of it, for most recent-model phones. So if you're on the go during your day and can't always find time to sit down and charge your phone, carry this little thing in your bag. It's just fantastic.

Boy O Boy do I ever like this little power bank. It has been especially appreciated since I cut the Cox Cable and depend on a hotspot connection on my iPhone for wifi. I bought it for the cool look and it has been a favorite electronic purchase. It charges quickly enough and supports my iPhone for hours. The only downside is the blocky shape that doesn't fit into a small purse. WTH, that's what the computer bag is for!

Nice and small power bank

It charges my phone fast and has a really cool design. The loop is more useful than I expected. I use the loop to hang the charger when I use it to power my rope light. That allows me to hang everything overhead when camping. The only downside is that the labeling on the product was misaligned which makes it look a little low quality. The charger will not turn on if what you're plugging in doesn't pull enough power. So, my rope light won't trigger the charger to turn on. I have to trick it by charging my phone and quickly swapping to the rope light.

I got two of these because we needed a charger when away from home. I got these for the size and weight. To my surprise we got a fast charger as well. I did not even know you could get a portable fast charger with a portable charger. The instructions suck and there is a confusing warning about charging it. I gave up trying to understanding what they said and just used it. No trouble so far. When at home and need a third charger I grab one of these. Really, everyone should have one of these for travel and everyday use. I never leave home without it.

I've tried this out and it does fast charging. Mine came 100% charged. For the price it's the best. More times I've found myself not near a power outlet. I have to limit my usage. Now I have a power bank no worries about power. This is sort of a geek item. You do get to see some of the front components. It has an attractive look. It's not as bare bone as other geek tech. But it has that feel. The power is awesome no complaints here. If you're looking for a geek theme it could be better. They do hide about 80% of the working components. Over all no complaints. I have a smaller banks that gives me a half charge and the weight is about the same. It is thicker and wider. It can fit in your pocket.

This is a great little charger, but it failed really quickly. Hopefully I'm just an outlier. Bought this Dec 6, so git it Dec 8th and it's now Feb 8th. Lasted exactly 2 months. I don't expect rechargeable batteries to last forever, because duh. I also am an electrician by trade and know my fair share about the life expectancy of batteries. 2 months isn't it

Thus bank in addition to being astetically appealing has a feel of quality to it,easy to ready a solution hands down the best displayI have ever had on a power bank with an accurate high resolution capacity display as well as a green gast charge indicator. Features I have wanted for some time in a small power bank. The capacity is very accurate. Handles high current loads like a boss. Works great in a heated coat. The clear see through case is a bonus for me having a background in electrical engineering. Highly recommended.

This is powerful for its size, and compact. Very handy for a small power solution. The % charge readout is not very accurate, so take the numbers with a grain of salt.

I received this power bank today. I have spent some time charging it and discharging it. I have tried numerous different cables with it. If you are wanting to use quick charge 3.0, make sure you are using cables that are for quick charge. Regular USBC charging cables will not enable the quick charge feature which is indicated on the screen with the green symbol. To the manufacturer, lose the little yellow tether that is part of the power bank. Instead, leave the hole and put a piece of mesh screening on the inside just so that there is battery ventilation. Next, I think this power bank has great aesthetics. Please make the same power bank as a DIY version so people can use their own 21700 batteries in it. I personally have tons of 21700 batteries and would have loved if I could have swapped out the batteries. Overall, this seems to be a great little power bank and I plan on using it a lot.