Customer Ratings & Reviews

This is a good one - it's powerful and my cell phone was charged quickly and efficiently. I carry it with me and an secure knowing my phone has a quick and easy second life. If you're looking for an excellent battery at a very fair price, get this one.

I purchased this item for a variety of reasons, to have as a backup in case we lose power, for traveling, hiking. It charges pretty quickly and is able to charge multiple devices. I had no problem charging with the adapters used overseas in Europe and Azores. It is a bit heavy but slim enough. I like that it comes with a nice pull string bag to keep ports safe and clean. I would recommend this purchase.

Very dense and compact in the hand. Nice click to the power button. Charges quickly.

Still have this charger and it 2020. Travelled with it to many places charged multiple devices, dropped it and it still works has a fast charger port for the applicable phone. I would purchase it again. Great buy!!!!

I bought this to go to a week long business convention. I expected to be in a convention center for 12+ hours a day with virtually no access to a place to plug in my Samsung Note5 (eats battery charge like it's candy) I was able to keep my phone charged at all times though I took hundreds of pictures & hours of video each day without seriously depleting the charge on this unit. I keep it with me at all times both home/ work/ auto just in case. Very convenient to use. I wish it would have come with it's own wall plug/converter, but I use the fast charge one that came with my Samsung phone and it works just fine, although it does take all night to recharge if the unit is depleted below 50% Excellent product so far !!! I have recommended it to DOZENS of people since purchase !

Best service for the money. It can charge 2 devices at the same time. I have charged my iPhone 4 times fully with this. It is a little heavy and the devices need their designated usb chargers. But, top class quality and service

Don't ever worry about losing power for your phone, Fitbit, or IPad. With the Anker, you can always recharge on the fly!

In this day in age when everyone has an cell phone or some type of portable device that requires charging via usb, this PowerCore is an absolute must have. There is not many other portable batteries that have the same amount of power as this one does, > 20000 mAh, which means it will not only charge your device at the speed it was meant to be, but it will also maintain it's charge to be used again and again.

it's a tad heavy, but works so well it can be forgiven, charges everything super fast but itself, initially it took over a day to fully charge, however it holds a charge very well so far, must say very happy.

I love this power bank. It charges 2 devices at one time and can charge my phone several times before it runs out of juice. It’s a little on the heavy side but I don’t mind for the amount of battery capacity that it has.

Its small and compact, but charges so fast and is very convenient.

This charger has a sleek design and holds all the mAH it claims. Have used it on a few trips and I tucks into the side of my backpack and is hardly noticeable. The rapid charge port is great for a getting a quick boost.

Great portable charger. Able to charge 2 phones are once and charging the PowerCore overnight gets you a full charge by the morning. It's a little heavy but manageable.

I've had many inexpensive battery backups, all of them a waste of time. This 20,000 mAh beast is amazing, charging my phone back to life 6-8 times! Fast port charges my Galaxy phone in under 2 hours. It comes with the micro USB charging cord and a nice storage pouch. There are two charging ports - center one is a fast charging port which speeds up the charge time. It does take a significant amount of time to fully recharge - 6+ hours with fast charger, 10+ with regular charger, and 18+ with USB computer port (my experience, yours may vary). Very happy with the purchase and can travel confidently knowing I can charge up my phone several times and even in places without an outlet to plug into!

This charger held it's charge for 6 phones charges, we then charged it back up, just to be sure. Easy to use. A little heavier than expected but easy to put into a small purse when traveling.

Love it, slim and tall for easy transport and storage. Easily charges my iPhone to 100% 3x and my AirPods twice. Really great add on when going to Disneyland or theme parks.

Long periods of time away from a wall charging solution are now not a problem thanks to the Anker Powercore. Not having to worry about keeping my iPhone, iPad, and handheld game consoles charged certainly helps easy my mind while I am out traveling or just simply having extended use on any particular device.

I’m not gonna stay moot. I’m cheap when it comes to buying accessories, but I understand that a battery can either have a really short lifecycle or in recent news blow up. I just needed something to go keep my device and my family’s juiced at the parks in Orlando. I thought I’d need a big battery because I know heat takes a toll on my devices battery life so logically I assume it would have the same affect on a better pack. Anyhow I hardly needed to use it and neither did my family, but when we did the thing worked really well. It kinda ticked me off that after taking my phone from 34% to near a full battery and my brother’s from 50% to like 80% not one light on the ‘battery life indicator’ went out. This monster of a battery pack still has a full belly after reviving two phones. I like Anker now knowing they didn’t cheap out on materials even though they weren’t the most expensive. I’m also impressed that it kept its battery up in the heat of a backpack. Still don’t recommend direct exposure to sunlight or leaving in your car as even I walked into shops here and there, but it’s a reliable product when it’s on the go with you. Ultimately I retired it though because it was too much battery in my case. As I’m starting college again soon though I may need another to keep my tablet and phone going

Will never have to worry about not having to not being able to charge my phone and my tablet if I don't have a charging outlet to plug into! And with extra charge left over! And the best part was the price , I have yet to see any thing close to the capacity of this one for what I paid! Bam I love it!!

This battery has charged my phone twice and my tablet twice and it is still at full charge. Charging is quicker than other batteries I've used before. Great battery for a great price!