Customer Ratings & Reviews

Works as intended. Charges fast and has good capacity

This charger has plenty of power and works easily.

The best external battery ever and faster charge to it

This charger works great. It’s kinda heavy and long. It’s not easy to find a charger of that capacity that it’s heavy and large but anker makes great batteries.

I bought this for my 3 week travel in SE Asia. This is such a great battery pack. It gives me peace of mind that I won't run out out of juice. Even after one full charge, the battery indicator didn't even deplete one dot, so it leads me to believe that this can hold many charges. I have yet to test it out fully.

This is one Portable charger that has lasted well over a year. Stands up to a full charge and is able charge multiple phone. Micro USB connector has still held up and not damaged. This is typical of cheap products, rendering the charger useless.

I've had it for a couple months now, and it is really convenient. A little bit heavy but charges really fast. Can charge my phone a couple of times.

I bought two of these for my adult children because they were always complaining about the battery life on their phones. My younger child uses it to charge wireless headphones and a Nintendo Switch with it with no issues. Both are completely satisfied with this charger.

As a heavy iPhone user in the outdoors, this is a must-have. I spend a lot of my time in the outdoors and the Anker Powercore is always with me. The convenience and reliability of this portable charger make it possible for me to photograph and record video without ever worrying about battery life.

My daughter used this as a back up for phone charging for a 2 week long trip with another family. Pack charged her iPhone several times without needing plugged in. When we took it on our next trip, it didn't need plugged in that long before a full charge was reached. I'm happy with this product.

Wooooo, trust me. When I’m out running around LA, you don’t want your phone to die. Not only will you feel stranded, but you will also hate life. No music, no photos, no texting...why? Because you didn’t get yourself a Anker powercore 20,000. Go get it, it could save your life

Pros Holds a great charge. Can charge iPhone 3ish times. Cons It's a bit heavy. Takes a long time to charge.

This is a must have for long flights and electric that is undependable. It charges quickly, it has LED's to let you know how much charge it has, and it has two ports so you can be your seat-mate's hero. It is a little heavy for a computer bag, but put it in your roll-aboard near the zipper where you can get to it.

Bought this on a trip, as I needed to charge my phone on a flight. This holds a ton of charging power. However, I deducted a star, as it was not fully charged when I bought it (didn't even fully charge my phone the first time). Also, because it is a bit heavy. Sure, it's a large battery, so that's probably to be expected. As usual, Anker makes very solid stuff. Wish it had a USB-C charger, though. Would keep cable clutter to a minimum.

I have previously owned a couple of portable chargers that did not work very well. This one does exactly what it says. I was able to charge both my Galaxy 7 and my android watch for five days on one charge of the PowerCore while I was out camping.

This is an excellent charger and is very sturdy. It holds a charge well. It will charge my phone without any issues. I have dropped it multiple times and it continues to work. This battery pack is a little bit larger than I would like but for the quality I would buy another one.

I prefer having a hefty charger that can power several trans-oceanic flights to the lighter chargers that are exhausted after one flight. Only downside: German airport security insists that it be shown separately, as if it were a laptop, so if you forget, you are pulled out of line.

Bought this last summer for a camping trip and it worked great! It allowed several full charges to our cell phones, and I've used it regularly since then to charge my phone or Apple Watch when out and about running errands. Have had it for over a year now and it's still going strong!

I travel a great deal and utilize public transportation most days to work. This provides able power on the go and eliminates the inconvenience of looking for a power source on the move. Do not be the person at the airport searching for the power plug when you can charge on the move.

I bought this portable charger for a long weekend where I wouldn't have electricity. The charger lasted 3 of the 4 days while I used it during the whole night and limited parts of the day to charge my phone. It lasted longer than I expected!