Anker Powercore 20000 Review Guide Ever

If you backpack for weeks at a time and want to stay powered up, you’ll need reliable and versatile energy sources. The Anker Powercore 20000 is here for you! This power bank with an incredibly large capacity will keep you energized for a long time.

In this review, we’ll go over everything from how much power it can deliver to its design, build quality, value, cons, pros, and more.

Anker Powercore 20000 Overview

Anker Powercore
Anker Portable Charger, PowerCore Essential 20000 PD (18W) Power Bank with 18W USB C Charger, High Cell Capacity 20,000mAh Power Delivery Battery Pack for iPhone 11/11 Pro/11 Pro Max/X/8, Samsung
  • The Anker Advantage Join the 50 million+ powered by our leading technology
  • Everything You Need Provide fast charging to your phone or tablet wherever you are and when you run out of juice simply connect the included wall charger to fully recharge your PowerCore in less than 7 hours
  • PowerCore Essential 20000 PD This travel-friendly Power Delivery portable charger offers high-speed charging to virtually any mobile device and thanks to the huge 20 000mAh cell capacity you can keep your devices charged for days no matter where you are
  • PowerPort III Nano One of our smallest chargers PowerPort is just 1 inch thick packing 18W of USB-C charging power into a device the size of a 5W iPhone charger
  • What You Get PowerCore Essential 20000 PD USB-C to USB-C cable PowerPort III Nano travel pouch welcome guide and 18-month

Anker Powercore 20000 is a nightstand-friendly power bank that can charge your phone, digital camera, or tablet. With a capacity of up to 20000mAh (18W), it’s capable of charging most devices at least once.

If you need more juice, the USB Type-C port can also function as a power supply for other devices that use Type-C ports.

It’s super compact and lightweight, so it’s easy to slip into a backpack or purse when you travel. The sleek design looks great on any nightstand. And the light blue LED indicator lets you know how much battery is left at a glance.

The PowerCore 20000 also comes with an 18-month warranty. It has a MultiProtect safety system that keeps it safe from short circuits, over-current, and over-heating. It is available in black, white, blue and pink colors.

Also, there’s a friendly customer support team available 24/7 to help you with any questions you may have.

Ideal for:

  • Android
  • iPhone
  • Travel
  • Commute

What You Get Inside The Box

  • The device itself – PowerCore Essential 20000 PD
  • 1 x USB-C to C cable
  • Travel pouch
  • Manual
  • 18-month warranty

Note: USB-A to C cable and Power Delivery wall charger unavailable

Look and Feel

The Anker PowerCore 20000 is a rectangular portable power bank with a sleek, black exterior and a soft-curved design for an in-hand feel. It’s made from durable ABS plastic and has a built-in battery of 20000mAh. 

The device features a power button at the back and four LED lights to let you know when it’s charging or fully charged. When you press the power button, the lights will illuminate to indicate the charging status.

You’ll also find two USB ports on the back of the portable charger to keep your devices powered up and ready for action. Also, the ports are on the same side to ensure that you power up your gadgets with ease. 


Powerscore 20000 is 0.7 inches thick, 2.9 inches wide, and 6.4 inches tall. It weighs about 12 ounces, making it lightweight. Because of its compact design, you can easily carry it wherever you go.

You never miss out on any important calls or texts. And since it uses a single cable, there’s no need to worry about tangled wires or other complications. 

Power & Capacity

Power capacity is the amount of energy a battery can store. The more energy a battery can store, the longer it will last. Some batteries have higher power capacities than others, and some batteries are smaller than others.

Anker Powerscore 20000 is an example of a high-capacity, long-lasting battery with a 20000 mAh capacity. That means you can use this Anker Powerscore charging station to juice up your devices multiple times before you recharge the portable charger.

It’s also compatible with most smartphones, tablets, and other devices with USB ports. 

You can charge your phone, tablet, or other electronic devices quickly and efficiently with the Anker Powerscore charging station. And the latest model lets you power up gadgets with USB-C Power Delivery, such as the latest iPhones and tablets.

The portable charger uses standard charging.

Charging Technology

The power bank offers you one USB-Type C port and one USB-A port to juice up your devices. You can also use the USB-C port for input and output charging to power up your portable charger. However, you’ll have to purchase the USB-A to USB-C cable separately. 

Trickle-charging mode

Want to charge tiny devices like Bluetooth speakers and earphones that need low power? The Anker Powerscore 2000 provides a unique charging system called trickle-charging mode. Activate this feature by pressing and holding the power button for two seconds until the LED light turns green. 

Advanced charging

Lighting fast-charging is also possible with the Powerscore 20000. Its USB-C Power Delivery port is perfect for input and output. And this allows you to recharge your power bank, including other devices, at high speed with one cord.

Also, the 18W PowerIQ 2.0 USB port lets you power any tablet or phone quickly – the charger is compatible with Qualcomm Quick Charge.

Number of charges

The Anker PowerCore 20000 (18 W) has enough power to charge up the iPhone XS Max almost five times and still has enough juice left over for another device.

It can charge up to two phones at once — just not at their maximum speeds — or one phone at full speed and another device at half-speed. It also has a USB-C port that you can use to charge other devices (like a Nintendo Switch).

Now let’s look at the number of charges, according to Anker.

  • 5 charges for iPhone XS
  • 5 full charges for Samsung Galaxy S10
  • Over 4 charges for iPhone 11
  • Over 2 and a half charges for iPad mini 5.


The Anker PowerCore+ 20000 is well built, but its hard plastic case makes it vulnerable to drops and falls. That said, its compact size makes it more likely to slip into pockets or bags without keys or other sharp objects damaging it over time.

In addition, it’s a high-quality, durable power bank with an 18-month worry-free warranty. It covers any defects in manufacturing or material.

If you have any issues with your product, you can contact Anker’s customer support team for help. They’ll replace your device if it’s broken within the first 12 months from the purchase date. And they’ll provide replacement parts for free during the first 18 months from the purchase date.


  • Huge battery capacity
  • Decent charging speed: can fully charge your phone several times, and it also has a high-speed charging port that will charge smartphones at their max charging speed.
  • Compact and lightweight design: sleek design that makes it easy to carry around
  • Good build quality
  • Includes 2 USB ports for simultaneous charging (one of them supports Quick Charge 3.0)
  • It includes an LED flashlight.
  • It has a power button and a USB port on the side that can be used to charge other devices.


  • It takes a long time to charge if you use a Micro USB cable, but this is typical of most portable chargers in this price range.
  • It does not have a wireless charging feature.
  • It doesn’t come with the SB-A to USB-C cable, Lightning cable, and wall charger.


Batteries/Capacity: 20,000mAh ( 1 Lithium Polymer battery)

Ports: USB-C, USB-A

USB-C output: 18W USB-C Power Delivery 3.0 (5V/3A, 9V/2A, 15V/1.25A)

USB-A output: 18W PowerIQ 2.0 & Quick Charge 3.0

Input: 18W USB-C PD (5V/3A, 9V/2A, 15V/1.2A)

Compatible devices: iPhone and Android phones

Size: 6.38 x 2.91 x 0.98 inches

Weight: 12.2 ounces


The Anker Powercore 20000 is one of the most popular power banks on Amazon. It’s easy to see why. It has a huge battery capacity and charges quickly. Plus, it has a sleek design, making it look like an iPhone XS Max.

Also, the Anker Powercore comes with a USB-C cable that can charge your phone faster than most other cables. This cord may be better than the one that came with your phone.

You can charge your phone multiple times on one charge from this power bank. Also, you can use it as a power source for other devices, like smaller tablets, headphones, Bluetooth speakers, etc.

FAQs About the Anker Powercore 20000

How Do You Charge an Anker Portable Charger 20000?

Using the USB cable, connect the power bank to a power outlet or computer.

How Do I Know When My Anker PowerCore 20000 Is Fully Charged?

When the LED lights are on, it shows that charging is in progress. They’ll shut off when the portable charger is full.

How Long Does the Anker PowerCore 20000 last?

You can take about 5 hours to recharge your power bank using a fast charger. But a phone charger will take longer to fully juice up the Powerscore 20000.

How Many Times Can 20000mah Charge a Phone?

It depends on the device. But here are some estimates: Samsung Galaxy S8/S9 (4 charges), iPhone Plus/X/XR (4 charges), iPhone 6/7/8/SE (7 charges), etc.

Can You Charge Anker PowerCore 20000?

Yes, you can recharge it by following the above instructions.

Can You Overcharge the Power Bank?

When your charger is full, the LED lights will turn off. You must disconnect it from the power source. Persistent overcharging can damage your device. 

Should I Charge My Power Bank Before First Using It?

Yes. Manufacturers recommend powering up your portable charger before use.

Brett Jones
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