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Anker Portable Charger, USB-C Power Bank 20000mAh with 20W Power Delivery, 525 Power Bank (PowerCore Essential 20K PD) for iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More
Connector Type | USB-A*1 + USB-C*1 |
Brand | Anker |
Battery Capacity | 20000 |
Color | Black |
Special Feature | Fast Charging |
About this item
- The Anker Advantage: Join the 55 million+ powered by our leading technology.
- Charge Fast Anywhere: The 20W USB-C port has enough power to charge an iPhone 12 to 50% in just 30 minutes. Also equipped with an 18W USB port if you need to charge a second device.
- Ultra-High Cell Capacity: The massive 20,000mAh cell capacity provides 5 charges for iPhone 12, more than 4 full charges for Samsung Galaxy S10, and over 2 and a half charges for iPad mini 5.
- Wide Compatibility: Charge virtually any mobile device including phones, tablets, and more.
- What You Get: Anker 525 Power Bank (PowerCore 20K), USB-A to USB-C cable, USB-C to USB-C cable, travel pouch, welcome guide, and our worry-free 18-month warranty.
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- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification Number743M8TPart ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification Number743M8TPart ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification Number743M8TPart ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification Number743M8TPart ofClimate Pledge Friendly
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byCarbonfree Certified
Each Carbonfree Certified product goes through a cradle-to-grave assessment to determine the product’s carbon footprint. The carbon emissions associated with the product are reduced where possible, and remaining carbon emissions are offset with third-party verified carbon reduction projects in renewable energy, energy efficiency and forestry.ClimatePartner certified
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reduce emissions.Certification NumberCKJY61Part ofClimate Pledge Friendly
Top Brand: Anker
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This Item ![]() Anker Portable Charger, USB-C Power Bank 20000mAh with 20W Power Delivery, 525 Power Bank (PowerCore Essential 20K PD) for iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | ||
Price | — | $44.99$44.99 | $35.99$35.99 | $44.99$44.99 | -17% $24.99$24.99 List: $29.99 | $59.99$59.99 |
Delivery | — | Get it as soon as Thursday, Apr 10 | Get it as soon as Thursday, Apr 10 | Get it as soon as Thursday, Apr 10 | Get it as soon as Thursday, Apr 10 | Get it as soon as Thursday, Apr 10 |
Customer Ratings | ||||||
Sold By | — | AnkerDirect | AnkerDirect | AnkerDirect | AnkerDirect | AnkerDirect |
capacity | — | — | 20000 milliamp hours | 20000 milliamp hours | 10000 milliamp hours | — |
connector type | USB-A*1 + USB-C*1 | USB-A*2 + USB-C*1 | Built-in C Cable*1+1C1A | USB-A*1+USB-C*1 | USB-C*2 + USB-A*1 | USB Type C |
number of ports | 2 | 3 | 3 | 2 | 3 | 2 |
compatible devices | iPhone 13 / 13 Pro / 13 Pro Max / 12 / 12 Pro, Samsung, iPad Pro, and More, Tablet, iPhone 15/15 Plus/15 Pro /15 Pro Max | Tablet, iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13/12 Series, Samsung, iPad Pro, AirPods, Apple Watch, and More | iPhone 16 | iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More | — | Smartphone, Laptop, Tablet |
voltage | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts |
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Product information
Product Dimensions | 6.22 x 2.91 x 0.76 inches |
---|---|
Item Weight | 12.2 ounces |
ASIN | B08LG2X98F |
Item model number | A1287 |
Batteries | 1 Lithium Polymer batteries required. (included) |
Customer Reviews |
4.6 out of 5 stars |
Best Sellers Rank | #11,746 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #462 in Cell Phone Portable Power Banks |
Date First Available | October 20, 2020 |
Manufacturer | Anker |
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Anker Portable Charger, USB-C Power Bank 20000mAh with 20W Power Delivery, 525 Power Bank (PowerCore Essential 20K PD) for iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More
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Product Description


Wide Compatibility
With support for both Power Delivery and Quick Charge technology, you can now power up virtually any mobile device.
Impressively Portable
You’d be hard pressed to find another 20,000mAh cell capacity portable charger with such a compact and portable design.
USB-C Input and Output
The USB-C port supports both input and output, so now you can charge your devices, and recharge your PowerCore at high speed.
Comprehensive Protection
Our MultiProtect safety system combines high-voltage protection, current regulation, temperature control, and more to keep you and your devices safe.
Trickle-Charging Mode
Provide safe and optimized charging to low-power devices such as Bluetooth earphones and speakers.
Helpful LED Indicator
The cool-blue LED displays remaining power and charging status. Just push the button to see how much power you have left.
Model Number: A1287
Anker 525 Power Bank (PowerCore 20K)
The High-Speed, High Cell Capacity Portable Charger
High-Speed Charging
With a 20W USB-C port that packs a real punch, you can charge an iPhone 12, a Galaxy S20, or a PIxel 4 in less than 2 hours.
Power for Days
With a 20,000mAh cell capacity, you can easily keep all of your mobile devices charged up for days on end. You'll wonder how you ever spent so much time plugged into the wall.
Premium Design
With a sleek matte exterior and cool-blue LED light-wheel to display battery level, PowerCore Essential 20000 PD is premium both inside and out.
Trickle-Charging Mode
Trickle charging is designed to provide optimized charging to low-power devices such as earphones, Bluetooth speakers, and other accessories. To activate, press the power button twice or press and hold for 2 seconds until the LED indicator turns green.
Rapid Recharge
Pair up with an 18W USB-C Power Delivery charger (not included) to fully recharge PowerCore’s internal battery in just 6.8 hours. Recharging with a 10W or less charger will take approximately 20 hours.
Note:
- 20,000 mAh is the total nominal rated capacity of the internal battery cells.
- USB Lightning cable not included.
- The power bank is flight-approved and allowed on a plane.
- Due to software issues, charging the iPhone 15 series is not supported at the moment.
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PowerCore Essential 20000 PD
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2-pack PowerCore Essential 20000
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PowerCore Essential 20000
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Customer Reviews |
4.6 out of 5 stars 6,857
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4.6 out of 5 stars 37,161
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4.6 out of 5 stars 37,161
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4.6 out of 5 stars 2,120
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4.6 out of 5 stars 7,136
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4.3 out of 5 stars 2,385
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Price | — no data | $69.99$69.99 | $37.99$37.99 | $59.99$59.99 | $16.09$16.09 | $69.99$69.99 |
Series | Basic | Basic | Basic | Basic | Reserve | Premium |
Main Feature | Portable | Portable | Portable | Built-in | Built-In C Cable | 65W High Power |
Output Ports | 1xUSB-C 1xUSB-A | 2*USB-A | 2xUSB-A | Built-in C Cable + 1C1A | Built-in C Cable + 1C | 2xUSB-C 1xUSB-A |
Recharging Time | ~6.8Hours (with PD charger) | ~8.8 Hours(15w) | ~10.5 hours | ~2.7 Hours(87w) | ~2.5 Hours(20w) | ~3.5 Hours |
Size | 6.22 x 2.93 x 0.76 in | 6.22 x 2.93 x 0.76 in | 6.22 x 2.93 x 0.76 in | 6.2*2.89*1.02 in | 4.32*2.58*0.98 in | 6.3 x 3.34 x 1.04 in |
Weight | 0.77lb | 0.77lb | 0.75lb | 0.97lb | 0.47lb | 476g/16.8oz |
From the brand

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We want you to live without the inconvenience and uncertainty of where your next charge is coming from.
Our chargers and accessories don't just power up your devices, they offer the tech experience you want with zero restrictions.
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Ultimate Power to Keep Giving
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Power to Drive Your Prime
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Doubly Fast in a Snap
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C-ing is Believing
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Anker's Sustainability Plan
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Get Powered Up Now
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Series 7 I Future Technology
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Series 5 I Higher Quality
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Series 6 I Unique Experiences
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the power bank works well during travel, particularly in Europe, and appreciate its compact size that fits easily in a jacket pocket. Moreover, the battery life is impressive, lasting all day, and the device is reliable, with one customer noting it kept their iPhone 14 alive. However, customers disagree on the charging speed, with some reporting it takes a while to charge. Additionally, the weight receives mixed feedback, with some finding it lightweight compared to other power banks while others consider it heavy, and opinions on value are divided between those who find it well worth the money and those who consider it overpriced.
AI-generated from the text of customer reviews
Customers find that the power bank works very well, with multiple customers confirming that the chargers perform as expected. One customer mentions it solved all their dead phone problems.
"Functions well, perfect size. I have 2 of these and they recharge quickly, charge devices fast, and have a very reasonable use capacity." Read more
"...It worked well in my smart bag and the form factor fit perfectly in one of the pockets...." Read more
"...Otherwise everything work pretty decent except for the heat emitting from the pack...." Read more
"Works great. Love the charge indicator light." Read more
Customers are satisfied with the power bank's battery life, reporting that it lasts all day and has plenty of capacity, with one customer noting it can power their iPhone multiple times.
"...disappointed at the size considering this is 20,000mAh. It holds its charge when not being used for at least a week or two..." Read more
"...months of non-use when I totally expect it to have died, it stays fully charged and ready to go...." Read more
"...It stays charged when it's not in use, unlike a lot of other battery packs I've tried, which is a bonus!..." Read more
"...my trip was ruined, but my Anker charger was a BEAST - keeping enough of a charge through multiple sub freezing nights and even a sub zero summit to..." Read more
Customers find the power bank durable, noting it lasts up to 7 days and is reliable, with one customer mentioning the included USB C cable feels sturdy.
"...multiple simultaneous devices at music festivals and such, and just keeps going...." Read more
"...It last a long time before I have to recharge the battery pack again. It is lightweight so traveling with it is a breeze...." Read more
"Perfect and lasts a few days!" Read more
"...This battery finally bit the dust. Started to expand and crack. It no longer works. I like the slim size. Lasts a while...." Read more
Customers appreciate the power bank's portability, finding it very handy for traveling and road trips, with a nice travel pouch included.
"...Great for traveling, long airplane flights. For a daily phone charge get the Anker with 10,000mAh and C to C charging (in and out)." Read more
"This is a great battery charger to take on trips...." Read more
"Being on my phone all the time due to work this battery pack really help with traveling and I don;t have to frantically look for an outlet to..." Read more
"...The shape is perfect because I can fit it in my vest pocket and have my phone in another pocket if I need to charge while working...." Read more
Customers appreciate the power bank's compact size, noting it fits easily in a jacket pocket and has a good balance between portability and capacity.
"...The power bank is small for what it does and I think the size is quite nice, but others may feel it’s a little too heavy...." Read more
"Functions well, perfect size. I have 2 of these and they recharge quickly, charge devices fast, and have a very reasonable use capacity." Read more
"...only reason that I took away a star is because of how small the battery indicator lights are...." Read more
"...Due to its slim size it fits easily in a backpack or fanny pack, and while it’s a bit chunky for a pants pocket it’ll fit there in a pinch too...." Read more
Customers have mixed experiences with the power bank's charging speed, with some reporting that it charges all devices quickly and works well with their phones and tablets, while others mention it takes a while to charge and doesn't reach full capacity.
"Plenty of power to recharge an ipad or iphone. Enough power to substantially add battery life to a laptop...." Read more
"Functions well, perfect size. I have 2 of these and they recharge quickly, charge devices fast, and have a very reasonable use capacity." Read more
"The product is exactly as described. It is kind of heavy and takes a while to charge, which happens for products that hold a lot of charge...." Read more
"...This has gotten through multiple charges of multiple simultaneous devices at music festivals and such, and just keeps going...." Read more
Customers have mixed opinions about the power bank's weight, with some finding it not bulky and lightweight compared to other power banks, while others describe it as pretty hefty.
"...Other power banks are out that can recharge faster, but they are heavier, more expensive, and may require to be plugged into a high powered charger..." Read more
"...Lightweight (not much heavier than a modern smartphone!), compact and small enough to tuck away in a small bag." Read more
"The product is exactly as described. It is kind of heavy and takes a while to charge, which happens for products that hold a lot of charge...." Read more
"...It is lightweight so traveling with it is a breeze...." Read more
Customers have mixed opinions about the power bank's value for money, with some finding it well worth the investment while others consider it not worth the cost.
"...It is absolutely terrific and a bargain price. The only thing that would make it better is a digital meter indicating how much charge is left...." Read more
"...I would highly, highly recommend at this price point...." Read more
"...banks are out that can recharge faster, but they are heavier, more expensive, and may require to be plugged into a high powered charger in order to..." Read more
"...Although I was cutting oz. Off where I could, this was worth the weight and was glad I brought it...." Read more
Reviews with images

The Anker chargers are generally great. Thank goodness.
Top reviews from the United States
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- Reviewed in the United States on August 11, 2023Number of Items: 1Verified PurchasePlenty of power to recharge an ipad or iphone. Enough power to substantially add battery life to a laptop.
The power bank is small for what it does and I think the size is quite nice, but others may feel it’s a little too heavy. I do not think most people would be disappointed at the size considering this is 20,000mAh.
It holds its charge when not being used for at least a week or two (I have not had it long enough to test it for longer periods yet.)
It does not run hot.
The only relative negative is that it takes about 4.5 hours to recharge from empty. This is not too long, but may require some planning depending on the situation. Other power banks are out that can recharge faster, but they are heavier, more expensive, and may require to be plugged into a high powered charger in order to obtain the faster charge.
This power bank is inexpensive for what you get. One very nice thing is that this charges through C to C, C to lightening, and not just USB-A.
I do think the shipping took a couple of extra days versus 1 day, but this was disclosed when I bought it.
It did arrive on the day promised.
I highly recommend this power bank for anyone that needs more than a daily phone charge. Great for traveling, long airplane flights.
For a daily phone charge get the Anker with 10,000mAh and C to C charging (in and out).
- Reviewed in the United States on February 15, 2025Number of Items: 1Verified PurchaseFunctions well, perfect size. I have 2 of these and they recharge quickly, charge devices fast, and have a very reasonable use capacity.
- Reviewed in the United States on January 1, 2025Number of Items: 1Verified PurchaseI’ve never seen this power bank run out, ever. This has gotten through multiple charges of multiple simultaneous devices at music festivals and such, and just keeps going. Even after months of non-use when I totally expect it to have died, it stays fully charged and ready to go. Due to its slim size it fits easily in a backpack or fanny pack, and while it’s a bit chunky for a pants pocket it’ll fit there in a pinch too. It also feels very durable and well-made.
- Reviewed in the United States on August 7, 2024Number of Items: 1Verified PurchaseThis is a great battery charger to take on trips. I went to Sweden last year for almost a month and this charger was solid the whole time I was there. When traveling from place to place where an outlet wasn't available, I always used this to fully charge or top off my phone (Galaxy S20). It worked well in my smart bag and the form factor fit perfectly in one of the pockets. It stays charged when it's not in use, unlike a lot of other battery packs I've tried, which is a bonus! If you're on the go and need to stay charged up, I highly recommend this battery pack! Lightweight (not much heavier than a modern smartphone!), compact and small enough to tuck away in a small bag.
- Reviewed in the United States on February 24, 2025Number of Items: 2Verified PurchaseThe product is exactly as described. It is kind of heavy and takes a while to charge, which happens for products that hold a lot of charge. It is absolutely terrific and a bargain price. The only thing that would make it better is a digital meter indicating how much charge is left. It has four little lights indicating full to no charge. It works, but that would be it if you make it better.
- Reviewed in the United States on October 11, 2023Number of Items: 1Verified PurchaseBeing on my phone all the time due to work this battery pack really help with traveling and I don;t have to frantically look for an outlet to recharge my phone. It last a long time before I have to recharge the battery pack again. It is lightweight so traveling with it is a breeze. My main concern is that the battery pack does get hot and I hope it not serious enough to damage my phone. Another thing is that it takes about 5hr to recharge which is fine if I charge it overnight. Otherwise everything work pretty decent except for the heat emitting from the pack.
UPDATE: upgrading to an extra star for excellent customer support. This was originally 3 stars but upgrading to 4 stars. Customer rep reached out to give some options making things right for the battery pack not meeting expectation. Thank you for assisting me in this issue.
- Reviewed in the United States on January 11, 2025Number of Items: 1Verified PurchaseI cannot recommend this product highly enough. I bought this and another, larger capacity charger for a trek up Mt. Kilimanjaro. I intended to use this as a backup, but on night 2, my larger capacity charger drained 100% when it dipped below freezing. I counted on these chargers to keep my watch, phone, headlamp, and DSLR batteries charged for 8 days. I thought my trip was ruined, but my Anker charger was a BEAST - keeping enough of a charge through multiple sub freezing nights and even a sub zero summit to keep my devices charged the whole time. I was blown away and having put this guy through an extreme test would without hesitation recommend it!!!!
- Reviewed in the United States on March 19, 2025Number of Items: 1Verified PurchaseWorks great. Love the charge indicator light.