Customer Ratings & Reviews

I travel lot and I have two of these with me at all time. Very reliable and durable. I had the old versions too! I love and trust anker for power bank and they never let me down! They’re little heavy I won’t lie :|

Powerbank which charges quickly and holds 4 full charges. Used while on vacation so phone did not die partway through the day. Only downside is the weight of the powerbank.

I recently went on a family trip and was looking for the best Power Bank solution for my Nintendo Switch and Samsung Galaxy S21 +. Look no further! This product is exactly what I needed! Don't spend the extra money on the officially licensed Nintendo Anker Power Bank. This one is the exact same thing and is much cheaper! It works perfectly on both my devices and even works on my Galaxy Buds Plus! Been taking this with me on the go to campus and it has not let me down. Charges my devices pretty quickly. What I love most about this product is that it comes with a sleeve for your power bank. Great for putting in your backpack or bag to take with you! One side note is that you will need a usb->wall charger to charge your power bank. Charging the power bank does take awhile but I usually leave it charging overnight and it's ready to go when I wake up the next day. Overall, fantastic product and I'm more than happy with my purchase!

I used it for a weekend camping trip, and it was perfect. It charged my android phone fully 3 times quite fast wirh charge remaning, It is a little heavier than I would have liked, otherwise I would have given 5 stars.

Compact & quick charging. Reliable & dependable. Carry it on trips.

This is a very reliable brand, its a little heavy though. Has two USB-A ports, has a USB-C port to charge the unit. It will charge a smartphone quickly and charge another seven before the power pack needs to be charged itself. This is a must for people on the go. I recommend this product.

Amazing. Portable charging station that holds a charge for days!

This was a lifesaver for my trip to Paris, using my phone for hours at a time to take lots of pics! It's a bit heavy for me, but overall I like it and it works well!

Just used this on my out of town trip. Didn't think I would need it but got it as a precaution. Glad I brought it because I ended up needing it in a pinch a couple to times when my phone was almost dead and I needed to use GPS to get to my destination. Charges my phone quickly and doesn't fully drain the battery, which is nice. This battery is very solid. The build is quality, and the LED's and button are easy to read/use. Never had to recharge it on a 10 day trip. This one is on the heavier side but slim and it was manageable.

Easy to use and take to long or short trips. Quick charge and long lasting battery.

Anker - PowerCore III 20K mAh USB-C Portable Battery Charger Included- PowerCore III 20K, USB-A to USB-C cable, manual, travel pouch The Anker PowerCore III is versatile because it has two USB-A ports and one USB-C port so you can charge multiple phones, earphones or a tablet. For being so powerful with a 20,000mAH capacity it's very slim and sleek. It's about 6" long, 3" across, and .75" high. It only weighs just over half a pound. I like the fine woven texture on the top and wish it was on the bottom as well, for better gripping. The battery level can be detected by pressing the button on the battery. There are four blue dots, each represents about a 25% charge. It also offers a trickle charge, which is recommended for charging earphones and is very easy to activate. Just press the button twice and the first light will turn green. To switch it back just press the button twice again. My battery came with 25% or less charge so it did take about 7 hours to fully charge. I love that the Anker PowerCore III also came with a travel/storage pouch. It's nice to store the charger and cord altogether. It's the perfect charger to travel with. I wouldn't hesitate to bring this anywhere with me.

I love this unit because it works well. It wasn't costly and it'll charge your phone a few times before it requires recharging.

This external battery was absolutely perfect for my trip to Europe. It has the perfect number of ports to keep all of my devices charged on the flights to and from. It was the perfect size to fit in my purse to take along with me while site seeing which allowed me to charge my phone as needed throughout the day from taking so many pictures and videos. I love how I was always able to tell with just a tap of the button how much juice it had left. I would highly recommend this for anyone traveling overseas.

I bought this for a flight I'm taking soon from Los Angeles to London. Pro: Charges devices quickly, has three outlets, including USBC. Seems to be solidly built. Con: a bit heavy.

Nice and slim, keeps a charge for a good amount of time. Nice for when you are on the go. Love that it takes the type C cords.

Quick charger and fits in my purse easily. Charge holds a long time

Bought this Anker 30K mah USB charger because my other one didn't have enough juice to last but a couple of hours to run my fan. This charger is amazing. After charging this charger all the way, it ran my fan for 4 days 3 hours each day and was still fully charged. It is amazing. I could run my fan and charge my phone at the same time and it stays fully charged. What a great charger, and it's the size of a cell phone. Definitely would buy again.

Kind of heavy, but honestly the BEST portable charger ive ever owned. Charges super fast and can charge my phone like 8 times before i need to charge it again!

Charged iPhone and watch overnight while camping, and still had power in reserve. Sleek and easy to use, this has made a great addition to my gear.

This is a heavy battery charger that charged my Samsung Note 20 from 15% to 100% 4 times on a single charge. Recharging this charger does takes about 7 hrs.