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Powkey power bank

Credit: Powkey

An ultra-high capacity power bank does more than just charge your smartphone or tablet multiple times. These 25000mAh to 50000mAh power banks can also power larger devices like digital cameras and laptops, provided their output is high enough. If you’re planning to use a power bank to keep more than just your smartphone charged, these are your best ultra-high capacity portable charger options.

Also: These are the best portable chargers

The best 25000mAh to 50000mAh power banks:

Note: When using power banks with USB-C ports, do check your device’s compatibility beforehand. Some power banks may require adaptors, and others may not work at all.

1. Anker PowerCore+ 26800mAh

anker powercore plus

Anker is a trusted name when it comes to portable battery chargers, and this particular option offers it all. To start with, you get the massive capacity of 26800mAh, which is more than enough to fully recharge your smartphone multiple times.

The newest version of the power bank comes with three USB ports, including a USB-C port with 30W output to let you charge a MacBook or the Nintendo Switch. Like every portable charger on this list, you get protection from short circuits, overcharging, and current and voltage surge. The portable charger also comes with a 60W USB-C wall charger.

Key details:

  • Capacity: 26800mAh
  • Output: 2 x USB ports 5V/3A max, 1 x USB-C port 5V/3A or 9V~15V/2A or 20V/1.5A (30W max)
  • Dimensions: 166 x 80 x 23mm, 725g

2. Aukey power bank 30000mAh

AUKEY 30000mAh power bank

This Aukey portable charger comes with a massive 30000mAh capacity, which should be more than enough to charge your smartphones and tablets multiple times. The device comes with two regular USB ports, one of which features Qualcomm Quick Charge 3.0 support, as well as a USB-C port, and even a flashlight for when you need it. The USB-C port can also be used to recharge the device itself and can be coupled with the microUSB input to fully charge the power bank faster. This power bank is also one of the more affordable ultra-high capacity charger options out there.

More: The best phone accessories you can buy

Key details:

  • Capacity: 30000mAh
  • Output: 1 x USB port 5V/2.4 A, 1 x USB-C port 5V/3A, 1 x QC 3.0 port 3.6V~6.5V/3A or 6.5V~9V/2A or 9V~12V/1.5A
  • Dimensions: 150 x 84 x 28mm, 578g

3. RavPower AC outlet portable charger 30000mAh


This RAVPower portable charger comes with a huge capacity of 30000mAh that will allow you to charge your smartphone multiple times. It comes with two standard USB ports and a USB-C port to keep your mobile devices powered. However, the big selling point here is its 3-prong AC outlet that lets you charge or power any device with up to a 100W rating, which is more than enough to charge most laptops. Built-in air vents and a quiet cooling fan keep the device functioning well when at max capacity.

Key details:

  • Capacity: 30000mAh
  • Output: 1 x USB port 5V/3.0 A with Quick Charge, 1 x USB port 5V/2.4 A, 1 x USB-C port 5V/3A, 1 x AC outlet (up to 100W)
  • Dimensions: 178.05 x 137.92 x 44.96 mm, 997.9g

4. iMuto 30000mAh power bank

Imuto 30000mAh Power Bank

The iMuto 30000mAh Power Bank is not the most advanced, but it is among the cheapest in this list of the best high capacity portable batteries. You’ll have to sacrifice some things for the lower price, though. This battery has no USB Type-C, as it uses a micro USB port to charge instead. It also means all output ports are USB Type-A, meaning some of you will need to get converters or new cables. If you can get past those downsides, it is definitely a great buy at its sub-$40 price tag.

Related: The best car chargers you can get your hands on

Key details:

  • Capacity: 30000mAh
  • Output: 3 x 3.4A (max) USB-A
  • Dimensions: 170 x 86 x 30mm, 617g

5. Powkey 42000mAh Power Bank

Powkey 20000mAh Power Bank

There are less expensive power banks with more juice in this list, but the Powkey 42000mAh Power Bank has a great build quality and amazing versatility. The couple AC outlets make it possible to plug in pretty much anything. Then there are four USB ports for charging smartphones, tablets, and other mobile products. It should be enough to keep your devices alive for long, considering it has a 42000mAh battery.

Key details:

  • Capacity: 42000mAh
  • Output: 2 x AC, 4 x USB (5V/3.1A), 2 x DC
  • Dimensions: 200 x 145 x 46mm, 1,497g

6. Maxoak laptop power bank

Maxoak Laptop battery

Now it’s time to get to the big boy power banks. The Maxoak Laptop Power Bank is meant exactly for what its name entails. The ample 50000mAh battery can charge computers and mobile devices alike. It features a traditional outlet for charging any device at 20V/5A speeds.

Need less?: These are the best 10000mAh battery packs

In addition, you can enjoy four USB ports. Two of these have 5V/2.1 A capabilities while the rest keep a more modest 5V/1 A. This is easily one of the best 50000mAh power bank options out there, but the price is starting to get higher.

Key details:

  • Capacity: 50000mAh
  • Output: 1 x DC 20V/5A, 1 X DC 12V/2.5A, 2 x USB 5V/2.1A, 2 x USB 5V/1A
  • Dimensions: 206 x 135 x 33 mm, 1,260g

7. Crave PowerPack 50000mAh

Crave PowerPack 50,000mAh power bank

The Crave PowerPack offers a huge 50000mAh capacity that should be more than enough to fully charge your mobile devices numerous times and even charge a laptop more than once. The Crave PowerPack is available in two models. The PowerPack PD comes with two USB-C ports — 18W and 60W to charge phones and laptops respectively. It also comes with two USB ports that feature Qualcomm QuickCharge 3.0 support.

If you have an older laptop, the PowerPack DC is the way to go. It comes with two DC outlets that should be able to charge most laptops. This power bank also comes with four standard USB ports to cover your mobile device charging needs, albeit without any fast charging capabilities.

Key details:

  • Capacity: 50000mAh
  • Output:
  • PowerPack DC – 2 x USB port 5V/1A, 2 X USB port 5V/2.1A, 1 x DC outlet 12V/2.5A, 1 X DC outlet 20V/3A
  • PowerPack PD – 2 x USB-C port (USB-C PD 18W and 60W), 2 x USB port with QC 3.0
  • Dimensions:
  • PowerPack DC – 203 x 152.4 x 50.8mm, 898g
  • PowerPack PD – 246.4 x 76.2 x 45.7mm, 1882g

8. Krisdonia 50000mAh laptop power bank

Krisdonia 50000mah portable charger

As the name implies, the Krisdonia 50000mAh Laptop Power Bank is perfect for charging your laptops (as well as smartphones, tablets, and other devices) while away from a plug. It sports four separate plugs: a variable (5V-20V) DC port, two quick charge USB-A ports, and a coveted USB-C port.

Once again, this power bank is far too large to take on an airplane. Krisdonia makes an even larger power bank with the shocking 60000mAh power bank if you just can’t get enough juice.

Key details:

  • Capacity: 50000mAh
  • Output: 1 x 5V-20V DC, 2 x QUICK CHARGE USB ports, 1 x 5V-12V USB-C port
  • Dimensions: 195 x 150 x 28mm, 1.2kg