Customer Ratings & Reviews

The Anker - PowerCore 20,000 mAh Portable Charger that I just bought is the size of my S7-Edge but twice as heavy. I charged the portable charger over night and I am going on two weeks of charging my phone. It takes about 30 minutes to fully charge my phone. I tap the power button to see how much charge is left in the charger and I get 4 lights. This is a great power charger and it was under $50 including a two year extended warranty from Best Buy Geek Squad. I think I will buy another three to have spares in case of an emergency.

I had bought this charger three years ago and it hasn’t gave me any problems at all the only thing was that one of the lights indicating the battery percentage went out but either than that it’s held it’s ground. I’ve dropped it numerous times and I can say it can take a hit without taking too much damage . I can charge my phone numerous times before having to charge the charger, the charger doesn’t take too long to fully charge despite the performance it puts out. I am very pleased with this product that I went ahead and recently purchased it again and I know I won’t be disappointed!

I've been wanting an Anker for awhile now, and with an upcoming vacation trip to the West Coast, I decided it was an ideal time to buy one and test it out before taking it on a business trip. The unit worked really well - takes some time to charge (10 hours when you first get it), and it charges a LOT more slowly than my phone's turbo charger plugged into an outlet, but it works really well when you're out and about and your phone gets down to the dreaded red bar. It's heavy - not surprising since its a power bank - but something to consider. All in all, I'm really happy I bought it and I would for sure recommend it to anyone looking for a backup power supply when you're travelling.

Does exactly as says, and charges my phone fast and lasts very long. It's not too large or heavy, it can fit in my back pocket, and even my front pocket perfectly. It's great for travelling, or going on a hike or somewhere where you may need some extra charge on your device. Being able to charge two devices at once is great too, be aware that only one port can fast charge (15w) the other port only charges at normal speeds, but it's still fast enough to use. Great product for the price.

Can charge 3 phones fully.....charged my galaxy s6 in no time. Carry case is convenient. Shows power level so you always know how much charge is left. Great price......though i did buy it during holiday sale.

This sucker packs a punch when charging my iPhone 8+, I haven’t used it to its full capacity yet, like a long trip . But will charger when I’m out and just needing some extra juice to last me for the night. Comes with a small usb charge cord and also a mesh pouch to carry around. It does have some weight to it, but it’s thinner than its previous predecessors. Has 4 small LEDs to give you status of how much charge is left.

I travel every few months and wanted a charger for my iphone and Samsung tablet while on the plane and waiting around in airports. I read some reviews and the Anker charger kept coming up. My son in law has 2 and he loves them. I have to say I’m now in the same camp. This charger works wonderfully and I was very impressed at how fast it charged my tablet while in the air. It is longer than my iPhone 6 (by about 2 inches approx) but not as wide. It does have a little weight to it but nothing that isn’t manageable. It took me a day to initially charge it fully. All in all I’ve very happy with my purchase and it’s a relief to know that I have a charger that I can depend on.

This PowerCore 20,000 is a very capable and well-designed portable charging unit. Since purchase It has easily charged two iPhones at the same time, and an iPad separately, with power to spare for yet more charging. The only drawback I see is its size/weight - it's a bit too large and heavy to be comfortably lugged around in a pants pocket or day pack. I'm looking at the Anker PowerCore 13000 as an alternative because its smaller size/weight is more in line with what I need for outings or traveling. Since these units cannot be carried on board a commercial flight in checked baggage, the smaller the better for carry-on. However, if I purchase the 13000, I may keep the 20000 and use it around the house and as a backup in the event of power outages. These Anker products have advanced the state-of-the art significantly since I purchased my Mophie Juice Pack when I acquired my first iPhone six years ago.

This PowerCore is a little heavy, that's why I call it a brick. But I love it!!! This thing has power for days. I can charge my smart phone (Galaxy S8) several times before the PowerCore need to recharge. This is great for traveling . I even traveled international with it, no problem, It is a very smart buy!!!

I bought this for my daughter when she went to Spain in March. It's a little weighty but it is so powerful. It's about the size of a TV remote but a little heavier. Fits in her purse nicely. She never had a dead phone out there and a few of her friends were using it as well because their little chargers didn't cut it when you're out all day with no electricity around. She just used it in Orlando a couple of weeks ago at Universal Studios and Sea World. Works like a charm. Once fully charged she told me it charged her Iphone around 20 times! The charge on it lasts around 3 days before you have to charge it again. I've recommended this charger to many people.

I bought this for an upcoming trip. It held many charges worth for my Apple iPod Touch device. It is a little heavy/sizable for my travel purse, but reasonable. I like the carrying pouch it comes with (prevents scratches and also fits the charging cord, lightning cord, and a small 1-USB insert wall plug-in) The device was on sale at my Best Buy store and price matched it online to get a better deal (as cheap as the smaller model, but with more power.) I'm a little less than satisfied with the size, but love the amount of power it has. Researching it beforehand, this brand seems to be the way to go to have a product that lasts and works. Recommended.

Perfect for what I need. My daughter takes many trips and this charger can power three devices for many hours. It has multiple ports and charges quick.

It lasts forever. Sometimes I have to purposely use it instead of my charger to drain the battery on purpose once a month. You will never run out. I charge it only once every three to four weeks. It’s a bit heavy but comes with a nice pouch to carry it in. Charges extremely fast and can charge multiple devices at the same time.

is doing great! Hold a charge for awhile and will charge any of my things rather quickly. Recharging goes fast as well good piece of equipment IMHO

Used while traveling overseas. Didn’t have to worry about finding an outlet at the airport or having my euro adapter with me at all times. Charges my iPhone XS Max 5-7 times depending on phone charge. Also could charge my 9.7” iPad Pro 3-4 times. Easily fits in a pocket. The other positive is being able to charge two devices simultaneously.

Item is well packaged It is heavier than I thought and seems like a serious back-up portable battery or power supply. The item came with a small amount of power. I charged it up until all "blue" lights were lit. I then charged up my Galaxy S10+ with about a 31% battery life left. I plugged in the charger, but noticed that I had to use the cord that came with the phone. It looks like the cord that comes with the battery pack might be a different size for S10 in particular. There are three ports on the charger - one for input and two others for output. I used the middle port to charge my cell phone and the phone said full charge in 2 hours. I did not check if the battery pack had done this quicker, but the phone was fully charged in the time mentioned. It looks like you might be able to charge two devices at once, but I have not tried that as of yet. The battery indicator on the power pack was still at four solid blue lights after charging for the 2 hours. The battery pack comes with a carrying case and is a great device if you are on the road or not near a wall outlet.

I have a iphone 7s and ipds that i bought this for. This great Anker 20k mAh powerbank, charges multiple devices several times before needing to be recharged. Recharges fairly well when using the included cord and android base. Not to big from the ability to charge 2 items several times. Highly recommend it.

After much research, I purchased this power bank at Best Buy. I needed it for two back-to-back out of town trips. I wasn't sure how often I would be able to use my wall charger, so I opted for the 20,000 mAh. It has a QC 3.0 quick charging USB port and second USB port, which charges almost as quickly. I tested both ports before my first trip. I have a Note 8 with a 3,700 mAh battery. This device holds enough power to charge my device more than five times (from 0% to 100%). I only needed to use it twice during the two trips. I did not recharge the power bank between uses, as the first LED light never even went out. This means I did not even use 25% of the stored power. I am very pleased with this portable charger. It works exactly as advertised. Please note, because of the huge amount of stored power, charging the device does take a while; somewhere in the vicinity of 6 to 8 hours.

Bought this portable charger as an emergency because my phone's battery died on me and I still needed to get an Uber home. Even though it saved me that day, I have found that it has become an essential part of my Tech kit. Sometimes you're just not at a Starbucks or your car breaks down and being able to charge your phone after extensive use of battery draining GPS services can help you have something less to worry about. This specific portable charger will last you for more than a couple of charges (7 charges according to the box). It has 4 indicator lights and I never get past the third light after fully charging my phone. Slowly losing charge after days of not using it, has not been an issue for me. The only cons for me are that the package did not include iPhone cables but I already had some with me and it does take a long time to fully charge.

I can't believe how well this works. I took it on a cruise, used it to recharge my phone every afternoon, and I never had to recharge it. Also, I using a charging station at home and it recharges itself overnight. Other reviews that say it takes forever are exaggerated