Best Portable Power Banks for Capacity (2024)

1

BioLite Charge 100 Max

Score: 9/10

BioLite Charge 100 Max

Large capacity ideal for charging multiple devices, including laptops.

Capacity

9/10

B

BioLite

It is big enough to deliver serious power to laptops and tablets, while still being small enough to take on a plane.

B

BioLite

This is the largest version of their smaller power delivery banks.

Charging Speed

8/10

Fast charging with versatile port options, but lacks wireless charging.

Quotes from Reviewers

B

BioLite

The Charge 100 Max has two super-powerful 100-watt charging ports.

B

BioLite

You also get another USB-C port with a 15-watt output and a USB-A port with a 15-watt output as well.

Build Quality

7/10

Durable design with some limitations for outdoor use.

Quotes from Reviewers

B

BioLite

This is more for people to keep in their backpacks rather than to take it out camping.

B

BioLite

It is designed for multi-device charging.

Portability

6/10

Relatively portable but not ideal for ultralight needs.

Quotes from Reviewers

B

BioLite

It is big enough to deliver serious power to laptops and tablets while still being small enough to take on a plane.

B

BioLite

This is the largest version of their smaller power delivery banks.

Safety Features

5/10

2

Otterbox Fast Charge

Score: 9/10

Otterbox Fast Charge

Offers high capacity options with reliable performance, suitable for multiple charges.

Capacity

9/10

M

MB_EDC

It has a capacity of 10,000 milliamp-hours.

M

MB_EDC

I've had it for two years now, and I really haven't been disappointed with it.

Charging Speed

8/10

Supports fast charging with multiple output options, though recharging itself is slow.

Quotes from Reviewers

M

MB_EDC

The input is via USB-C, and it supports up to 18 watts.

M

MB_EDC

The USB-C output ranges from 1.5 to 3 amps, with a maximum output of 18 watts.

Build Quality

8/10

Durable and rugged design, though not waterproof.

Quotes from Reviewers

M

MB_EDC

I was fed up with buying cheap power banks and discovering that the connectors were breaking or not working.

M

MB_EDC

I thought I'd go for a reliable brand, and I had used Otterbox cases a lot previously.

Portability

7/10

Compact and travel-friendly, but heavier than some alternatives.

Quotes from Reviewers

M

MB_EDC

It's part of my everyday carry; it's in my work bag, and I take it when I travel.

M

MB_EDC

Well, it weighs about 260 grams, just short of that, a little bit over nine ounces.

Safety Features

6/10

Basic safety features with reliable performance, but lacks advanced options.

Quotes from Reviewers

M

MB_EDC

Another significant benefit is that it's also a wireless charger.

M

MB_EDC

The LEDs are not very bright in this light, but one of the benefits is that it charges the phone.

3

Anker prime 27,650mAh power bank

Score: 9/10

Anker prime 27,650mAh power bank

Offers a high capacity of 27,650mAh, ideal for charging multiple devices, including laptops.

Charging Speed

8/10

Fast charging with 250W throughput, but speed reduces below 55% capacity.

Build Quality

7/10

Solid design with a glossy finish and status display, but heavy.

Portability

6/10

Portable in a bag but not pocket-friendly due to size and weight.

Safety Features

8/10

Includes charging speed throttling and a companion app for safety.
4

Nimble Champ Pro

Score: 8/10

Nimble Champ Pro

The Nimble Champ Pro offers a substantial 20,000mAh capacity, suitable for charging laptops and multiple devices.

Capacity

8/10

O

OSReviews

Finally, the most expensive item we have here, called the Champ Pro, also has the largest capacity, which has now been doubled again.

O

OSReviews

This device is powerful enough to supply up to 60 watts, which can also charge most laptops, including MacBooks and Chromebooks.

O

OSReviews

For a 20,000 milliamp-hour pack, it might be nice to have a second USB Type-C or USB Type-A port.

Charging Speed

8/10

Supports fast charging up to 60 watts, ideal for laptops and smartphones, but power splits when charging two devices.

Quotes from Reviewers

O

OSReviews

This device is powerful enough to supply up to 60 watts, which can also charge most laptops.

O

OSReviews

Using the 60 watts, it was able to charge my laptop in under two hours.

O

OSReviews

However, 60 watts is the maximum output, which means that if you're charging a phone at the same time, it will reduce the power from the Type-C port down to, let's say, 45 watts.

Build Quality

7/10

Made from recycled materials with an antimicrobial coating, but lacks rubber accents for better grip.

Quotes from Reviewers

O

OSReviews

Not only is it eco-friendly, but it has also been treated to be antimicrobial.

O

OSReviews

It doesn't feel too cheap or flimsy; it's just as solid as any other power bank.

O

OSReviews

Although I will say that they don't really have a rubber accent or anything that's a little bit more grippy.

Portability

7/10

Compact and easy to carry, but slightly heavier than smaller models.

Quotes from Reviewers

O

OSReviews

Despite its really compact size, it also remains fairly cool, even when charging things at the fastest rate.

O

OSReviews

Overall, this is still very compact for something that has a capacity of 10,000 milliamp hours.

O

OSReviews

It is going to be heavier; however, overall, this is still super compact.

Safety Features

9/10

Includes smart charging features to prevent overheating and overcharging, with no significant cons.

Quotes from Reviewers

O

OSReviews

This is a smart charger in the sense that it won't overheat or overcharge once a particular device, like your laptop, reaches one hundred percent.

O

OSReviews

It will stop charging on that port and continue charging on the other side if the other side isn't full yet.

O

OSReviews

Despite its really compact size, it also remains fairly cool even when charging things at the fastest rate.

5

Anker Prime Power Bank

Score: 8/10

Anker Prime Power Bank

High capacity suitable for charging multiple devices, including laptops, but may be bulky for some users.

Capacity

8/10

T

TechDaily

The two I have here are the Anker Prime 20 models.

T

TechDaily

For starters, it fits perfectly in a bag or backpack, and it's well within the TSA-approved battery size limits for a carry-on.

T

TechDaily

This is a high-wattage power bank designed to keep devices of all sizes powered all day long.

Charging Speed

9/10

Fast charging with up to 140W per USB C port, though speed may slow after 50% charge.

Quotes from Reviewers

T

TechDaily

Each of the USB-C ports can achieve a maximum of 100W individually for fast-charging other devices.

T

TechDaily

Each USB-C port individually supports 140W.

T

TechDaily

Switch to slower charging after reaching about 50%.

Build Quality

7/10

Solid build with a sleek design, but glossy finish collects fingerprints.

Quotes from Reviewers

T

TechDaily

It feels really solid, but it's definitely more suited as a backpack power bank.

T

TechDaily

It has the same big, glossy black plastic front, which looks pretty sleek.

T

TechDaily

The larger 250 W model does have a slightly brighter display.

Portability

6/10

Compact for a backpack but heavy, affecting portability.

Quotes from Reviewers

T

TechDaily

For starters, it fits perfectly in a bag or backpack.

T

TechDaily

It's about 4 cm shorter than the 250 WT and lighter, but it still weighs over 500 grams, or just over a pound.

T

TechDaily

It is probably not going to fit in any GM pockets.

Safety Features

7/10

Displays battery health and power distribution, but lacks specific safety features.

Quotes from Reviewers

T

TechDaily

You can see all of the input and output from each port, and it's pretty cool to see these updates in real time.

T

TechDaily

It can get quite warm when charging something that draws a lot of power, like a laptop.

T

TechDaily

You get all these other stats, and you can see all of the input and output from each port.

6

Nestout 15,000mAh Outdoor Battery

Score: 8/10

Nestout 15,000mAh Outdoor Battery

The battery offers a high capacity suitable for multiple device charges, though using additional features like the Gear Lamp can reduce its effectiveness.

Capacity

8/10

D

David Canterbury

Power storage that is very portable and can be carried with you, even in a backpacking scenario.

D

David Canterbury

These power banks come in three different models, and each model represents the milliamps the battery can provide per hour.

Charging Speed

6/10

Charging speed is adequate but can be inconsistent, especially with solar charging under varying weather conditions.

Quotes from Reviewers

D

David Canterbury

The device from Elom truly deserves some special recognition.

D

David Canterbury

Each model represents the milliamps the battery can provide per hour.

Build Quality

9/10

High-quality construction with award-winning design, though the plastic material may not feel premium.

Quotes from Reviewers

D

David Canterbury

This is actually an iF Design Gold Award winner.

D

David Canterbury

This is a Japanese company, so their products are made in Japan, and they specialize in making rugged outdoor power storage.

Portability

8/10

Compact and easy to transport, though initial setup and component purchases may affect convenience.

Quotes from Reviewers

D

David Canterbury

Power storage that is very portable and can be carried with you, even in a backpacking scenario.

D

David Canterbury

They make rugged outdoor power storage units that are very portable.

Safety Features

7/10

Robust safety features are included, though some concerns about reliability and manual clarity exist.

Quotes from Reviewers

D

David Canterbury

The series consists of rugged portable power banks designed to withstand anything nature throws at them.

D

David Canterbury

They make rugged outdoor power storage.

7

Anker PowerCore III Elite

Score: 8/10

Anker PowerCore III Elite

High capacity suitable for charging laptops and multiple devices, but slightly less than typical models.

Capacity

8/10

W

Wwjoshdew

This is a high-capacity battery charger with 26,000 milliamp hours of capacity.

W

Wwjoshdew

The actual tested capacity of this power bank is 85% of the rated capacity, which is really quite good.

Charging Speed

8/10

Supports fast charging with 60W power delivery, but limited by a single USB-C port.

Quotes from Reviewers

W

Wwjoshdew

Devices are powered by USB-C at 60 watts.

W

Wwjoshdew

I was able to recharge it from empty in just a little over an hour.

Build Quality

7/10

Premium feel with good heat dissipation, but heavier and prone to fingerprints.

Quotes from Reviewers

W

Wwjoshdew

It has brushed black aluminum on the front and a nice soft-touch rubber on the back.

W

Wwjoshdew

It is very solid, and although it feels hollow in parts, it is overall very solid and heavy.

Portability

6/10

Useful for travel but heavy, making it less portable than expected.

Quotes from Reviewers

W

Wwjoshdew

This weighs 560 grams.

W

Wwjoshdew

This is not something you're going to toss in your pocket to charge your phone while you're out and about.

Safety Features

7/10

Reliable for charging multiple devices, but lacks pass-through charging.

Quotes from Reviewers

W

Wwjoshdew

One feature of the power button is that if you press it twice quickly, you will see a green LED at the top. The green LED indicates slow charging mode.

W

Wwjoshdew

I prefer to use trusted brands, and I trust Anker.

8

BioLite Charge 80 PD

Score: 8/10

BioLite Charge 80 PD

High capacity suitable for multiple charges, but may not meet all users' needs.

Capacity

8/10

B

Backwoods Pursuit

So, with 10,000 milliamps and 18 watts, this is going to charge really fast, I think.

B

Backwoods Pursuit

When I took this out of the box, it was reading three out of four bars, and it's still showing three out of four bars, so it hasn't been affected yet, as far as this is concerned.

Charging Speed

9/10

Fast charging with Power Delivery technology, but requires specific cables.

Quotes from Reviewers

B

Backwoods Pursuit

With 10,000 milliamps and 18 watts, this is going to charge really fast, I think.

B

Backwoods Pursuit

So, it's eight percent in exactly 10 minutes. That's promising.

Build Quality

8/10

Rugged and durable design, but not waterproof.

Quotes from Reviewers

B

Backwoods Pursuit

I like the texture. It's thin, doesn't weigh a lot, and is about 10 ounces.

B

Backwoods Pursuit

This is supposed to be rugged and somewhat shockproof, but I read that it's not waterproof.

Portability

7/10

Lightweight and easy to carry, but relatively heavy for its capacity.

Quotes from Reviewers

B

Backwoods Pursuit

It's lightweight, it's slim, and I can easily slide it into any of my pockets or just keep it in the backpack.

B

Backwoods Pursuit

This one's light, it's fast, and it's got the trademark pilot colors, which I like. It makes it easy to find in your backpack at night.

Safety Features

7/10

Basic safety features with shockproof design, but lacks waterproofing.

Quotes from Reviewers

B

Backwoods Pursuit

This is supposed to be rugged and somewhat shockproof.

B

Backwoods Pursuit

However, I read that it's not waterproof, so I always have Ziploc bags.

9

Anker Prime Power Bank, 20,000mAh

Score: 8/10

Anker Prime Power Bank, 20,000mAh

The power bank offers a substantial 20,000mAh capacity, ideal for charging multiple devices, including laptops.

Capacity

8/10

T

TechDaily

For starters, it fits perfectly in a bag or backpack, and it's well within the TSA-approved battery size limits for a carry-on.

T

TechDaily

If you might need a bit more power, such as faster charging speeds or additional battery capacity, consider upgrading.

Charging Speed

7/10

Supports fast charging with 100W max per USB C port, though speed may vary with temperature.

Quotes from Reviewers

T

TechDaily

Each of the USB-C ports can individually achieve a maximum of 100W for other fast-charging devices.

T

TechDaily

It's super exciting that in just one hour, this fairly large battery is going to be fully charged.

Build Quality

7/10

Robust design with a useful display, though aesthetics and durability may vary.

Quotes from Reviewers

T

TechDaily

Both of these are follow-ups to their previous large power banks, and you might already notice the new design and larger built-in display.

T

TechDaily

It has a screen, and you don't really want to scratch it and get it damaged.

Portability

7/10

Compact and TSA-approved, but design may affect ease of carrying.

Quotes from Reviewers

T

TechDaily

For starters, it fits perfectly in a bag or backpack, and it's well within the TSA-approved battery size limits for a carry-on.

T

TechDaily

It's short and stubby, with some girth to it, but it's not very long.

Safety Features

8/10

Comprehensive safety features with temperature monitoring and battery health display.

Quotes from Reviewers

T

TechDaily

The monitoring of the battery shows you how hot it is.

T

TechDaily

You need to activate the battery by plugging it in with a wired connection, and they technically want you to fully charge it the first time you use it.

10

UGREEN Nexode 100W 20000mAh

Score: 8/10

UGREEN Nexode 100W 20000mAh

High capacity allows for multiple charges, but may only fully charge larger devices once.

Capacity

8/10

C

Charger Harbor

A capacity of 25,000 milliamp hours will be helpful for charging phones about three or four times.

C

Charger Harbor

When it comes to charging tablets or laptops with similar battery sizes, you might get a single full charge with some spare capacity left over.

Charging Speed

7/10

Supports fast charging with 100W output, but speed reduces with multiple devices.

Quotes from Reviewers

C

Charger Harbor

The power bank provides 100 watts of power delivery.

C

Charger Harbor

If you're charging a single device from the C1 port, it will be able to output 100 watts of power delivery.

C

Charger Harbor

The C1 Port will always be able to output 100 watts of power delivery, no matter how many devices you're charging.

Build Quality

7/10

Premium design with a soft-touch finish, but prone to scratches.

Quotes from Reviewers

C

Charger Harbor

It's a really nice-looking power bank, mostly silver with black accents all around.

C

Charger Harbor

UGREEN has become really good at designing their chargers over time, and this one definitely looks premium.

Portability

7/10

Compact and fits in larger pockets, but heavier than some smartphones.

Quotes from Reviewers

C

Charger Harbor

It has dimensions of six by three by one inches and weighs about a pound.

C

Charger Harbor

You can place it in your pocket if your pocket is large enough.

Safety Features

6/10

Basic safety features with pass-through charging, but limited advanced features.

Quotes from Reviewers

C

Charger Harbor

I tested the pass-through charging capabilities of the UGREEN power bank, and it appears that it does feature pass-through charging.

C

Charger Harbor

The flight is approved because the total capacity of a battery cannot exceed 100 watt-hours for commercial flights.