Customer Ratings & Reviews

This battery is very convenient when travel, I travel a lot and it never lets me down

Even though I decided that I didn't really need an extra charger and decided that I would return it, I will say that the Best Buy store where I do most of my shopping has a great staff, and is always eager to assist me when needed.

Works great. I needed it as I flew southwest and they do not have usb chargers on their planes. This charger worked out perfectly.

Love this product: it’s kind of big, however it holds so much charging power I went a week worth of travel and all I needed was this.

This is a very awesome power pack. I took this on my trip to Cancun and it came in handy when I needed it and didn’t leave me hanging. 

So far so good. Used it to run my camp string lights on a recent trip. Worked fine in temps of mid 30s at night.

Great backup battery. Powerfully enough to charge an ipad and cell phone at the same time.

I gave this to my son as a present and he always use it outside to charge his phone and he doesn’t have the cord

This is great value. Size is great. The amount of "juice" this stores for the money is hard to beat. Will take a while to charge up if you don't use a fast charger.

Anker engineering at its best, does what is promised to do, quality and dependability superior to all the rest, nothing bad to say about it!!!

Charges my phone when I’m on the go. Wish I would have shopped around more before I bought it but it gets the job done

Great while it lasted. Made it 1 year. Have the geek squad warranty. Heading to the store today for a replacement.

Works great. Plan to use it in the airport and maybe on the plane on a long overseas flight to power a mini-cooler for my medication that requires refrigeration.

Power banks are one of those products where it's really hard to be sure if what you're getting is actually worth the price you pay, which is why I'm glad that companies like Anker exist. There's nothing too complicated about their power banks, but they can generally be trusted to do a very good job selecting good parts and practicing stringent quality control. As a result I've found that Anker power banks tend to outlast those from pretty much any other brand I've tried. While I haven't had much time to spend with the PowerCore III, I haven't found anything to suggest that it'll break the trend. The unit is definitely chunky, but not overly so given how high the capacity is. The casing is a mix of metal and molded plastic, with a slight crosshatch pattern on the top panel that makes it a lot more visually interesting than the usual nondescript black bricks Anker is known for. Charging the bank itself is about as fast as you can expect for a battery this size, and it easily lasted a few days of occasional use charging my Pixel 3XL and my roommate's phone before I needed to top it up again. I even tried using it to top up my laptop at one point. While the output isn't quite fast enough to keep up with the thing while it's turned on, it was a nice fallback to have when I found myself without my charger. And despite what it may say in the description, the USB-C port works as an output just as well as it does an input. Accessories are very basic, with a mesh drawstring carrying bag and a single USB A to C cable that's about three feet long. Getting a C to C cable would have been nice as it does seem that the USB C port is the only one that lets it charge at full PD speeds, but that's an easy oversight to correct on your own. It's certainly not the kind of product that'll set the world on fire. But for a lithium ion battery, I think that "reliable" is more than enough. If you're looking for a battery in this range, I doubt you'll go wrong with this one.

A year in and she still works as I just bought 'er. Sweet power charge feature too if you double press the circular button.

Another excellent Anker product. Charges really quickly, charges my phone and headphones really quick too. The USB/USB-C ports are very useful for multi-charging at once

Harger is great, but it takes forever to recharge the battery pack, and one of the usb ports stopped chargingwithin the first week. I was out of town so there was nothing i could do

This had great charge power for my galaxy watch, cellphone and blue tooth speaker! I had such an easier trip with this device!

All Anker products are good. Best Buy stores are so easy and convenient to shop around.

This is my first portable battery. The "User Manual" was a tiny brochure, with just a few lines of instruction. At first, I did not understand what to do. I figured out that I had to use my phone's electrical cord to charge this battery charger. I contacted Anker (manufacturer) for more detailed information, and they offered nothing more than the tiny "User Manual" that I already had. I finally figured out how to charge the battery (overnight) and then charge my phone. The level of the battery's charge is indicated by tiny blue flashing lights. You might miss seeing them!