Customer Ratings & Reviews

This is my second Anker portable battery. I stuck with the Anker brand because the first portable battery I bought 5+ years ago was superb for its time. Now, I wanted something with more capacity than simply the capacity to charge my old MotoX phone. Size/Weight: Basically, it is the size of your larger cell phones (i.e. 6.5" phones) in footprint and double the thickness. It has some weight to it because it is, after all, nothing but battery encased in a plastic shell. Design: Nice textured matte finish with the Anker name engraved on it. It has a button similar to an old-school iPhone that when pressed will show you up to 4 blue lights--each representing 25% charge left on the battery. If you see 3 lights, for example, when you press the button, you have between 50-75% battery charge left. It has 2 USB-A ports (the "old" rectangle USB port) and a USB-C port. Usage: I let my Motorola One Ace run nearly all the way dead and put it on the Anker charger. The phone said it would take approximately 1.5 hours to fully charge. Effectively that is a 10% charge every 9 minutes. USB-A charging is at 2.4A while USB-C charges at 3A (or that's how I understand it to be). Unfortunately, this is not as fast as my Motorola TurboCharge wall charger that came with the phone. I do not know for certain, but I suspect that is because Motorola TurboCharge is a proprietary "motorola thing." Nonetheless, the charge from battery to phone is not unreasonable. However...I found the time to charge the battery to be slower than I had hoped. I am not an electrical engineer, but I know enough that Motorola Turbo Charge and QuickCharge 3.0 are not the same thing. Nonetheless, I had hoped for faster brick charge times from my 18W wall charger and cable. The world of "chargers" and charging protocols is fairly complicated so "results may vary" for phones, cables, and wall chargers. Charging the brick from empty to 100% with my 18W 5V/3A charger took well over 4 hours. [Full disclosure, I checked on it after 4-5 hours and it was not full so I left it charging overnight so I cannot speak to exact amount of time but BB says approx. 7.5 hrs to full charge.]. Perhaps Anker has some documentation to clear up all the standards and how all that works. Conclusion: As mentioned, this is a nice upgrade from my previously very reliable Anker charger. As an added bonus, I have the ability to charge up to 3 devices at once (2 USB-A, 1 USB-C port) and I should be able to fill my phone with charge 5-6 times before I need to recharge the brick. The brick is best recharged overnight as it does take some time to reach 100% full. Sitting unused, the Anker PowerCore III 20K holds its charge very well. The product comes with a nice drawstring sleeve to hold the charger. I suppose you could tuck your USB cable(s) in the bag along with the brick if your cables are short. This is not the right battery to rely on for charging large devices like a laptop however I suppose in theory, given enough time, it could charge a laptop. It is best suited for phones, tablets, portable speakers and headphones. This model does NOT provide wireless charging.

I got the opportunity to try this device out for a honest review and I have used plenty of Anker products in the past so i figured why not. Inside the box you get the device, a USB type C to USB Type A cable to charge the device and a soft case to carry it. The battery pack itself has 2 USB Type A ports and one USB type C port which can be used to charge devices and is used to charge to pack itself. The pack is a 20,000 mah battery so it can easily charge your iPhone 12 Pro for example which has about a 4,000 mah battery ( rounding up) about 4 full times. The one knock on the device is that I would think by 2021 it would of come with a USB type C to USB type C cable instead of USB type A to USB type C.

Fast charge! Can be used a couple of times. Just wish it was a little lighter. Really weighs down my purse. Needed to find a cord for charging purposes.

5 years still good is everything you need i Will buying again

Only knock I have on this power bank is the time it takes to charge it fully. From empty to full is nearly 8 hours, so this is one you really need to think about putting it on to charge at bed time. Two USB-A ports and a USB-C port, which is used to charge the bank and also charge other devices with quick charge. The size really isn't much bigger than my 10,000 mAh and you get twice the capacity. Also comes with a nice mesh style carrying case. Anker did a nice job on this one.

This is a truly SUPERB, fast battery charger. I had many over the years and this one is much lighter and charges the phone much faster. I'm an entertainer and I carry it with me on all my trips. HIGHLY RECOMMENDED!

I used the Anker portable battery charger pack on a recent trip and I was not disappointed. I used it to charge a Samsung 8" Android tablet from about 20% charge to full charge and still had plenty of juice left to charge an iPhone 12, a pair of Sony bluetooth over the ear noise canceling headphones and a pair of Samsung earbuds and still had half capacity left. The single button lets you check how much capacity you have left. The size is roughly that of a smartphone and weighs about the same as a can of soda. You can easily toss it in auxiliary pouches of a backpack or a purse without it taking up too much space. I like the USB C charging port in addition to the 2 USB A ports. The price point is competitive and with its charging capacity, size and simplicity easily makes this my new go to charging pack. Anker products are solid and always a good value. Well done Anker for hitting another one out of the park. Simple is always better!!!

I just used it while in New York. I like that it’s not too heavy and feels good in your hand. I could charge my phone while in my handbag. Anker makes great products

Charges fast and works great with my Pixel 6. Also includes a nice little travel pouch. We have several Anker products including cables and such and the quality has always been good.

It has a lot of power and charges my iPhone really fast, with lots of charging capacity left over. However, it needs a cable that will plug into an iPhone.

satisfied with this purchase. took it on a cruise trip and only had to charge it once.

It kept my phone charger while in Europe, stays powered for a long time.

Great Battery for the price. Im sure as time progresses, it these batteries will get smaller and smaller and when that day comes, it will have earned its 5th star.

great slim powerbank. Definitely a good choice for phones while travelling.

Works like magic. Best for travel to parts of the world with electricity shortages

Works great, I was able to keep my phone charged on long trips.

Perfect gift for my daughter she uses it everyday.

Charges my phone fast and charges pretty fast itself.

This charger is great. It gets charged pretty quickly, and my phone can get a charge from it pretty fast as well.

Great power bank im in love will buy again. Easy use