Anker Power Bank(PowerCore 10K), Compact Travel-Ready 10,000mAh Battery Pack with PowerIQ Charging Technology, 5V/3A High-Speed Charging for iPhone, iPad,and More(USB-C Input and Output(Black), 1pack)ClimatePartner certified

Some months ago, I purchased a well-known suitcase brand with a collapsing "closet" feature for packing a lot of clothing in a smaller space. That suitcase also had a pocket for inserting their brand's power banks and plugging it into a USB port near the handle. This enables the traveler to charge up a mobile phone or other device without digging through a bag for a charger or using public charging stations. I found their brand of power bank, a solar-charged device, to be unreasonable high.This Anker Power Bank is approved for carry-on baggage, so it's safe you bring with you on a plane. There are three output ports, one of which doubles ad as input port to charge the bank. You can easily give a full charge to most mobile phones, and the device even has a trickle charge feature for low-power items. This is so convenient for quick charges to top off a phone, tablet or headphones before storing your bag away. Yet it's light enough to carry in a pocket and it's about the same size and slimness as many modern mobile phones.This bank fit my suitcases charging compartment perfectly and connected just fine with the suitcase's USB wiring. The best part is saving about $125 versus the cost of the "suitcase" brand. As usual, the Anker product quality is tops.

I bought this a few months ago as 'emergency backup', if I happened to be away from a charging source (so, not in a building or car; generally for camping and the like). The battery in my Galaxy S8 has degraded over time, and I wasn't ready to get spendy on a new phone, nor did I look forward to 'cell phone surgery' to replace the battery (the days of popping off the case back and swapping out in a minute or two are long gone, sad to say). So I ordered this up. At 10,000 mAh, I figured I should get enough charge to get me through a jam.If you're thinking... "S8! That's a dinosaur!" -- you're likely rocking something much more current, and aren't worried about off-grid power. Yet. But remember -- all batteries degrade with time.After having used it... my thoughts- Takes a bit to charge up, once discharged (so once you've discharged, plan ahead). Especially the first time.- However, once it's charged up, the self-discharge rate is slow, so you don't have to constantly keep it plugged into a wall wart, etc. You can charge this up, once conditioned, and pack it away for a few weeks to a few months.- The 4 LED meters on the front are handy for determining SoC / Time to Charge- Form factor on this is very similar to the dimensions on my S8 (although a little thicker, and of course, heavier)- A shorter USB A <> USB-C cable does double duty -- USB A to bring the charge to the phone / device via USB-C, then remove & flip USB-C into the input of the Anker, while plugging the 'A' end into any compatible port to recharge it.- Comes with a black cloth bag with drawstring closure, which is nice to keep that short USB cable together with the device. Nothing fancy, but useful.- And probably the best, after using Qi-Wireless for 90% of the time over the life of the G8 -- this thing puts juice into the phone, quickly. I can go from 5-15% charge to 30% in under 30min. Not sure how many amps it's charging at (rated at 'up to 12' -?), but it's definitely quick. If you're caught somewhere without power (or even if you're not) -- this device is a lifesaver (figuratively & perhaps literally, I guess).Technically, I guess you're not supposed to use the phone while charging with a power bank, but it comes in handy for those times where you need to use the phone a little longer, but need a little juice to tide you over (it juices the phone so fast--especially vs. Qi-wireless--that you say "I might as well just keep it hooked up to this)). I think it'll charge close to 100% in about 90 minutes, maybe less.- Since my G8 battery is ~ 3800 mAh (?), I can get up to two full charges out of this thing, or many 'partial' charges. From full, 30 minutes' time on the G8 doesn't even remove one 'dot' from the 4-light meter. This is real value, in my book. Because most of the time, I can get back to a power source in 30min or so.So... for what I'm using it for, which is to buy time until I decide to finally (!) upgrade my phone, and keep the S8 running a little while longer... it's an excellent accessory, from a trusted company. Since this has been out a while, and been superseded by higher-cap devices, solar-capable chargers, etc. -- it's also cheap -- about the cost of one of those replacement battery kits (with batteries that came from who knows where).Not often I unequivocally give the full 5-stars... but this product gets them from me. Recommended.(oh, and mine came new in a box, so if yours doesn't... get in touch with Anker for a new replacement)

Good stuff, does its job. Slightly lower rate of charging but not too bad. Best thing is the compactness - its just a little bigger than my iphone 13 so fits basically anywhere without being a heavy load

This little power bank is like that reliable friend who always shows up when you need them—but then takes forever to get ready the next time you call. It charges my phone quickly, and the 10,000mAh capacity is perfect for travel—enough juice to get me through a long day (or two).The only drawback? Recharging the power bank itself feels like waiting for paint to dry. Plug it in at night and hope it’s full by morning. For something with “high-speed charging” in the description, I wish that speed worked both ways.That said, it’s compact, dependable, and does exactly what I need when I’m on the go. I’d still recommend it—just plan ahead if you don’t want to get caught with a dead backup battery.

The Anker Power Bank (PowerCore 10K) is an absolute game-changer for anyone on the go. Its compact size is perfect for slipping into a backpack or pocket without adding any noticeable weight. I always bring it to work soon as my phone battery gets low i use it and BOOM charges my phone up to 100% like it's NOTHING! and it's been incredibly reliable. The 10,000mAh capacity provides more than enough power to fully charge my phone multiple times, so I never have to worry about my battery dying.The build quality feels solid and durable, exactly what I've come to expect from Anker products. It charges devices quickly and efficiently, which is a huge plus. The simple design and easy-to-read LED indicators make it a breeze to use. This power bank is an essential accessory for anyone that works or travels and don't can't wait to put your phone on the charger when you get home or when your phone is almost dead from daily use, daily commutes, highly recommend this strong durable brand!The USB-C port is a fantastic best feature. It allows for both input and output, which means you can charge the power bank itself with a modern USB-C cable and also charge your USB-C devices, like newer phones and tablets, directly from the battery! This versatility makes it an even more convenient! and future-proof accessory.

I tested it and it works well, and charges my phone in a reasonable amount of time. The price was right and the power bank itself seems to hold a charge for a long time. I used the USB--C for both for input and output with no problem.