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Anker - PowerCore 20,000 mAh Portable Charger for Most USB-Enabled Devices - Black-Front_Standard

Customer rating

Rating 4.8 out of 5 stars with 1128 reviews

97%
would recommend to a friend

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  • Rating: 5 out of 5 stars

    ONLY external to ever buy unless size ONLY concern

    Posted
    LPLBK
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    TLDR: If size is a concern and capacity or charging speed etc isnt top priority and just want anything tiny that charges even if only for a few minutes - this isnt for you. if you want long-lasting (in regards to the available charge capacity and product itself) thats issue free on every level and lasts days even with constant use and over years, compatible with every type of phone even ones yet to be introduced to the market - the size pails in comparison and the price is remarkable AND DONT BUY ANY OTHER EXTERNAL BATTERY! I've purchased 3 of these over the last few years and countless other external batteries of every brand through owning an iPhone 7plus and Samsung note 9. The only reason I've purchased 3 - is I refuse to buy any other external batteries despite the price and could buy a cheap smaller capacity one and at the moment needed charging asap aka if I forgot mine in some situation and cant get home or wherever to get it. These charge my phone countless times and last someone who's constantly on their device over several days, sometimes weeks, depending on your lifestyle. Before realizing the difference in the charging speed associated with the output when I switched to a Samsung note 9, I already loved my anker and this SPECIFIC model. Now, it's the only external that I've used which has quick charging in addition to having a huge capacity and also have ALL lasted over a few years or more without a single issue EVER (I'm sure theyve updated slightly over the years but I really think I purchased the first one a few years ago of the same capacity with 2 outputs and one of quicker charging output for an iPad etc.) I've been through SO many cords, even phones at this point but this is one of the most, if not, THE MOST reliable product let alone one that's electronic I've ever owned. its maintained the usefulness as new phones have come and gone then just as quickly as their predecessors for newer models - which is hard to imagine honestly. People comment is bulky - it's not small but for the power and use its amazingly compact. I keep one in my purse always or bag I have on me. it has AMAZING capacity, quick charging speeds, charging that lasts days to weeks or months (depending on your personal use - but even those constantly on a device it will last days minimum and those on the other end rarely using an external battery except emergencies could last months), highly compatible with ALL phones including new phones as they're introduced (iOS and Android), and charges 2 devices simultaneously on top of it all. must buy for anyone buying an external battery!! size is the only downside and if that 1 issue is your requirement - that's the only reason this wouldnt be the external battery for you.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    I didn’t love it at first but..

    Posted
    TechAng3l
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    This charger surprised me. I took with me to Greece (there were a lot of purchases made for this trip see other reviews lol) I had this and a Mycharge mini battery that plugs into the wall. I had my sister (world traveler like myself) and my aunt and mom (New to international travel) and I knew that while my sister and I knew to bring converters my mom and aunt would not. Charging it took forever! I was warned about this beforehand and did a little research to expedite this. There is a five port charger made by the same company and it has two special ports that decrease charging times significantly (was true to form). I used both religiously in Greece when we weren’t near a plug and didn’t want to lug around my adapter. I handed the Mycharge to my mom and aunt and they used it for about two days before I had to plug it in. The Anker charged two iPads and two iPhones for two days almost three before needing a recharge. Without the 5port the charging from zero to full took about a day, the port cut the time down to 8 hours or less. Now my sister wants one. Pros capacity (you can do 6-8 phones, 2 ipads, a computer with the appropriate usb all with ease), size (wasn’t too big but not small and it comes with this cute little accessory pouch), price (it was 49.99 and with the buy three accessories get 25% off it came to 38 bucks), even at full price it’s a steal for a 20k battery. Cons takes forever to charge (expected for such a large battery), buyin the other accessory is necessary (do not buy the combo pack for 100 buying the five port and the Anker battery was waaay cheaper and you get five frigging ports. You can’t charge it and have a device attached to it for charging (didn’t care as much because I got five friggin ports lol) Get it (and the five port) you will be glad you did especially for long car trips, travel and if you have as much tech as me and never enough USB ports.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    I did not go wrong

    Posted
    MyBrowskie
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    I thought I was making a huge mistake because the price was way lower than the rest like Mophie, Insignia (which I think is Best Buy’s genetic brand) , and the Samsung packs. Oddly enough this worked way better than I thought. I used to hold the sentiment that battery packs were stupid, but then we were going to Orlando, Florida and I knew my phone junkie self wouldn’t be able to find an outlet in the parks. So I bought this one knowing my phone’s battery was gonna bleed with all the video and photos I’d be shooting. I also thought in a worse case scenario if my SUV broke down along the way even though it is new I should keep a battery for emergency purposes. Like if a wreck occurred I couldn’t go back in the car expecting the battery to work. Anyway this worked awesome. Took a while to charge up which made me anxious bc I started charging it last minute but it lasted a long time. It didn’t discharge or die in the heat of Florida either like I thought it might bc it was cheap. I’ll be honest. I expected this thing to work for only like 2 Charges. But nah I’d charge my device, my brother would bring his back to 100%, and my cousin charged his. And it still had 3 out of its 4 lights active at the end of the day. It’s a smart buy.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Anker is a brand I respect now

    Posted
    Matt
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    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

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Big power at a small price

    Posted
    TedBayre
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    So far it has been a great purchase.

    Posted
    drobertson725
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I purchased this due to that fact that I was on a crabbing trip and my GoPro battery died and I could not use it the rest of the day.... I seen it advertised on sale and started reading up about this potable charger and it was a no brainier... since charging it I have charged my cell phone several times along with charging my Osmo Pocket several times and had let several co-workers charge their cell phones well... and I still have three lights left on it... it does take several hours to fully charge but I watched several YouTube videos on how to speed up that process one was using an iPhone charger but I have only charged it once since I bought it so I may have to edit this after I charge it back up to see if the IPhone charger is quicker. One thing is that it is large and heavy but for me i carry a backpack to work and everywhere i go so it is not an issue to me as it may be to other... overall so far this has been a great purchase and i am please with this portable charger so far....

    I would recommend this to a friend

  • Rating: 4 out of 5 stars

    Great portable battery

    Posted
    dsyers
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I purchased one of these batteries for a Christmas present for my daughter. She is a heavy phone user and was always needing to charge her phone. This fulfilled the need. It has 2 USB charge ports. One of which supports fast charging. It really does fast charge. It supports Android and Apple phones, and pretty much anything else that needs a USB port to charge. It does take awhile to charge this thing up. Using a 3000 mah charger, (The one I use to fast charge wirelessly) takes around 6 to 9 hours to fully charge. It worked so well for her, I bought one for myself. The only thing I would want changed, is the power meter to be numerical percentage, like 100 - 00. My ten dollar battery has that feature. It is pretty heavy, like a quality product, heavy. Fits in my back jeans pocket fine. I do not recommend sitting on it, nor dropping it. So yeah, go ahead and get one.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    A life saver!

    Posted
    Angelfire
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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 would recommend this to a friend

  • Rating: 5 out of 5 stars

    Solid portable charger

    Posted
    AFK18
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I bought this portable charger for a recent trip to Italy. I had a number of electronic devices with me on the trip, and with full days planned needed to make sure that I had the juice to keep all these devices charged and ready. This charger can charge two devices as the same time. One of the ports is a fast charger, which I used for my Samsung Galaxy S9+. The fast charger was fast, easily able to top off the phone in a short period of time. The other port I used for charging my camera or other devices. The size is perfect for putting in the pocket of a travel backpack. It does weight a bit more than a pound, but I consider that weight worth it for the amount of charging capacity available. Overall, I had plenty of power to keep my devices charged on this trip. I would highly recommend the Anker PowerCore.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Great Product

    Posted
    RickyA
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    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.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Holds Lots of Power

    Posted
    s4000
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I bought this for a trip I was taking that required a lot of time in airports. It was a life-saver. I used it more than I thought I would. It takes a bit to charge, as the battery pack is larger than most and holds a lot of charge. I charged it one time and used it for about a week and maybe 5-7 charges. When it got down to one bar I charged it again overnight and it has held the charge ever since. It offers two USB outlets to charge items simultaneously, and charges about as quick as a regular power outlet. It is larger than many others, so it doesn't necessarily fit well in your pant pocket, but it's fine if you've got a back-pack or coat on. If you want more battery power, you're gonna give up on size. If you only want a couple charges, get a smaller pack that would fit in your pocket!

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Works Great and excellent value

    Posted
    Larry
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    Held off buying one for years as felt excessive as phone charging opportunities are plentiful and convenient. Then during foreign travel it hit me. Battery low while waiting in Gatwick intending to recharge during flight when phone off anyway bu economy airline EasyJet didn't have USB in the seats. Phone less than 5% and couldn't purchase train ticket on app for fear couldn't show to conductor later and had to take a number and stand in line as kiosk wouldn't accept US credit cards as the require a PIN. Another time purchased a round trip boat ticket and kept the phone off most of time and had the return ticket on the phone. Had 2% battery on the phone when Purser wanted to see the ticket. Never again! Making a habit of keeping it with me, even in the US for re-charging during the day if needed.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Heavy, but powerful - great for trips!

    Posted
    jorasmom
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Awesome Charger

    Posted
    JoshH
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    Bought this to replace my $90 one that has been through better days. The only thing I do not like about this charger in comparison to my old one is that I can plug it into any outlet and it would charge up and charge my phone at the same time. This one does not. Although, I do get more charges out of this one in comparison to my old one. Charge time is also extremely slow for the brick itself. Charge times to the phone are fast. I like that it comes with a protection sleeve for transporting. This thing is heavy as well. Overall, good charger.

    I would recommend this to a friend

  • Rating: 4 out of 5 stars

    Great buy so far

    Posted
    StaffordVAMan
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    I commute more than an hour each way to/from work via train, so I use my phone quite often during those trips. Consequently, my phone's battery dies easily. I needed a solution. This portable charger was the best one I saw online. I can charge my phone on the way home with ease and without worrying about my phone dying. It also holds it charge for quite some time so I don't have to charge it daily. My only complain is, I wish it came with an actual charger and not just the USB plug. For $50, you would think it would come with one. If you can live with spending a few more dollars on the plug, this is a great buy. I give four stars because it didn't have the charging plug. If it did, I'd give five for sure.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Serious backup for multiple devices & charges!

    Posted
    kdadman
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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!

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Love it

    Posted
    Susanne
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    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.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    So Much Power

    Posted
    LadyD
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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 would recommend this to a friend

  • Rating: 5 out of 5 stars

    Holds a Great Charge

    Posted
    DawnW
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    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.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Beast of a charger!

    Posted
    SDRoadWarrior
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    Being a traveling professional, my iPhone battery was needing to be charged 3x/day, and not always near a source of power. I broke down and got a new iPhone battery installed hoping that would ease my charging dilemma...well 9 months later I'm back to 3x a day. I looked at options from Mophie with an integrated case, but the number of charges it would cover were so few. So for half the price of an integrated case I chose the Anker 20,000 mAh PowerCore. I have had this for a week and it has lived up to it's name, several iPhone and laptop charges later and it is still going strong. If you are in the market and a traveling professional this is a must have tool in your briefcase.

    I would recommend this to a friend