Top 8 High-Capacity Power Banks with Over 20,000mAh Battery

Despite recent technological advancements, we have yet to see a gadget that can power you through at least two days of heavy usage. The good news is that there are many high-capacity power banks that are ready to feed your power-hungry devices throughout the day. Also, high-capacity power banks can be your lifeline should you find yourself in remote areas without electricity access.

All the power banks below have one thing in common: they are portable and have high-capacity batteries. These aren’t pocket-portable power banks but are compact enough to easily fit in your backpack, glove box, or laptop bag. With that in mind, let’s dive in to this list of the best high-capacity power banks with over 20,000mAh batteries.

Also helpful: high capacity doesn’t mean high output. We’ve also listed the best power banks to charge a laptop.

1. Anker PowerCore 20K Essential PD

Anker has established itself as a leader in charging devices, and the PowerCore Essential PD is a superb 20,000mAh option. You can charge two devices simultaneously, and it can charge anything from a basic phone to an iPad. It’s also relatively small, making it a great choice if you fly on airplanes frequently.

Pros

• 20000 mAh
• 20W USB-C port and 18W USB-A port
• Can dual-charge
• Can charge iPads and other tablets

Cons

• Cannot charge laptops
• Takes six hours to recharge itself

2. RAVPower PD Pioneer 20000mAh

The RAVPower PD Pioneer 20000mAh is the perfect high-capacity power bank for anyone needing to charge a laptop. It can charge a MacBook in just under two hours, thanks to the 30W PD output. Also, unlike most other power banks, the RAVPower Pioneer includes AC output so that you can charge devices like your Nintendo Switch, GoPro camera, or other non-USB-powered electronics.

Pros

• 30W USB-C PD output and 18W USB-A quick charge
• 100W AC output included
• Can charge multiple devices at once
• Can charge laptops
• Compact design

Cons

• Can only recharge via USB-C
• Rectangular design takes up space in bags

Learn more: if you aren’t sure which power bank to buy, check out these tips for power bank shopping.

3. Nuxgal Power 50000mAh Power Bank

The Nuxgal Power 50000mAh Power Bank offers nearly twice the charge time as most of the other power banks on this list. Finding a bank this compact with such a high-capacity battery is nearly impossible. Also, the flashlight offers a handy addition for anyone camping or attending a music festival.

Pros

• Impressive 50,000mAh battery
• Charge up to four devices at once
• 3 USB-A outputs and 1 USB-C output
• Can recharge via micro USB, USB-C, or Lightning
• Built-in flashlight
• Compact design given the capacity

Cons

• Micro USB and Lightning ports don’t output
• Cannot charge laptops

4. Mophie Powerstation XXL

If you’re looking for a powerful 20,000 mAh power bank but also care about aesthetics, then the Mophie Powerstation XXL may be the perfect option. This bank includes three USB ports (2 USB-A and 1 USB-C) and is covered in a sleek black fabric. This makes it soft to the touch and fashionable while providing necessary functionality.

Pros

• 18W USB-C PD output
• 1 USB-C port and 2 USB-A ports
• 4-light LED power indicator
• Aesthetic design

Cons

• Can only recharge via USB-C
• Cannot charge laptops or other high-output devices

Tip: does it seem like your smartphone is always running on empty? Learn how to fix Android phone charging issues.

5. Baseus 65W Power Bank

The Baseus 65W Power Bank offers one of the highest outputs of any power bank on this list. Thanks to the 65W PD output on the USB-C port, you can charge your MacBook Pro to nearly 50 percent in 30 minutes. Also, the built-in screen tells you how much battery life is left on the power bank and reads the charging voltage and current.

Pros

• Impressive 65W USB-C PD output
• 1 USB-C port and 2 USB-A ports
• Built-in screen for battery and output readings
• Available in two colors

Cons

• Not compatible with all laptops

6. Crave PowerPack 50,000mAh

If you need a long-lasting power bank, then the Crave PowerPack is an excellent choice. The 50,000mAh battery and its 100W PD USB-C output make it an ideal power bank for laptops and other large devices. However, you will have to put up with the size and lack of added features if you’re going to carry this brick around.

Pros

• 100W PD USB-C PD 3.0 output
• 2 USB-C port and 2 USB-A ports
• 4-light LED power indicator
• Great for mobile workstations or non-traveling users

Cons

• Bulky design
• No added features

7. Anker PowerCore 20,100mAh

It may not have any standout features, but the Anker PowerCore 20,100 makes a strong case for being on this list, as it’s the only power bank with over 20,000mAh battery that is truly pocket portable. That in and of itself is a selling point for many people who like to travel lightly.

Pros

• 18W USB-C PD output
• 1 USB-C port and 2 USB-A ports
• 4-light LED power indicator
• Aesthetic design

Cons

• Can only recharge via USB-C
• Cannot charge laptops or other high-output devices

More Info: also read our full review of the Anker PowerCore 20,100 to decide whether this is your best option.

8. BLAVOR Solar Power Bank

If you are an outdoor enthusiast, the BLAVOR Solar Power Bank is hands down the best high-capacity power bank for you. This device is waterproof and durable and includes solar panels to recharge itself. This is a must-have for weekend camping trips or all-day hikes.

Pros

• 18W USB-C PD output
• 1 USB-C port and 2 USB-A ports
• Supports wireless charging
• Can recharge with adapter or solar panel
• Waterproof
• Durable design
• Built-in flashight

Cons

• Not made for laptop charging
• Solar charging takes time

Frequently Asked Questions

What does mAh capacity really mean?

Milliampere hours (mAh) is a measurement of how much electrical charge is stored within the power bank. The higher the mAh, the longer a power bank can operate before recharging.

Why can't all power banks charge laptops?

Every power bank is rated to output at a certain rate or voltage. Unfortunately, laptops require a higher voltage than other devices, like smartphones. Unless the power bank is made to provide the appropriate output, it cannot charge a laptop.

Will charging multiple devices at once affect my power bank?

Most power banks are made in a way that they can only provide a set maximum output. This means that if you charge more than one device, they will charge at a slower rate than they would if you charged them one at a time.

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