The best power banks you can buy in 2025: Expert tested and reviewed

Almost everyone I know owns at least one power bank, and the ubiquity of these portable chargers means that you can pick up cheap units in gas stations and dollar stores. But my extensive testing suggests that these are false economy, and you're very likely buying something that at best won't last long, or at worse could even be dangerous.

This is why I recommend buying power banks from reputable brands, and I still work to keep those brands honest by extensively testing every power bank using an array of gadgets to make sure that they do what they say they do on the box. If the power bank claims water resistance, I test that, and if there a durability claim, rest assured that is also tested to a high level!

What is the best portable charger right now? 

I've rigorously tested hundreds -- yes, literally hundreds -- of portable chargers in recent years, putting me in the perfect position to identify which ones truly deserve your hard-earned money. It takes a long time to test a power bank, testing that involves power meters and such to measure capacity and power output, testing durability claims in real world tests, followed by a chunk of time using the item on a day to day basis. But at the end of this, I know just how good a particular power bank is!

My pick for the best power bank overall goes to the Anker Nano 10,000 mAh for its portability, quality construction (this power bank has been knocked about by me in a handful of countries), the fact that it has USB-C and USB-A ports which means it caters to both old and new devices. And to top it all off, it comes with a super handy built-in USB-C cable. And you get all that for $30.

While the Anker Nano is my favorite, there are plenty of other options with different price points, features, and brands in mind. For example, if you're looking for a power bank with sheer power, the Cuktech P-series 25,000 mAh can give you several recharges of a smartphone or close to a full recharge of a MacBook Pro -- but this will set you back around $60. Of, there's the nearly indestructible Dark Energy Poseidon Pro, which can take a hammering and costs $120. 

And fear not, I'm testing handfuls of power banks every month from big brands, looking for the best of the best portable chargers. Right now I'm testing a couple of really interesting portable chargers from Nitecore and Sharge. Stay tuned!

The best power banks of 2025

Why we like it: It's just everything that most power bank owners want from their power bank. It offers decent to top up a smartphone during the day, it has both USB-A and USB-C ports so you're covered for all eventualities, and there's even a built-in USB-C cable, so you can't forget it!

And to top things off, it's made by Anker, a company with track record of making quality hardware for a decent price.

Review: Anker Nano 10,000 mAh

Who's it for: Someone who want's a no-fuss, no-brainer power bank. And if you're the sort of person who forgets their cable (or you know someone who does this) then this is the power bank for them!

Who should look elsewhere: This is a bit small for powering a tablet or laptop, and it doesn't make any claims regarding durability, so those looking for something bigger, more powerful, or more rugged should look elsewhere.

Anker Nano 10,000 mAh tech specs: Capacity: 10,000mAh | Ports: 1 x USB-C cable, 1 x USB-C, 1 x USB-A | Max output: 30W  

• Small, lightweight, and portable -- just 7.5 oz
• Built-in USB-C cable
• USB-C and USB-A ports

• No wireless charging

Why we like it: It's just everything that most power bank owners want from their power bank. It offers decent to top up a smartphone during the day, it has both USB-A and USB-C ports so you're covered for all eventualities, and there's even a built-in USB-C cable, so you can't forget it!

And to top things off, it's made by Anker, a company with track record of making quality hardware for a decent price.

Review: Anker Nano 10,000 mAh

Who's it for: Someone who want's a no-fuss, no-brainer power bank. And if you're the sort of person who forgets their cable (or you know someone who does this) then this is the power bank for them!

Who should look elsewhere: This is a bit small for powering a tablet or laptop, and it doesn't make any claims regarding durability, so those looking for something bigger, more powerful, or more rugged should look elsewhere.

Anker Nano 10,000 mAh tech specs: Capacity: 10,000mAh | Ports: 1 x USB-C cable, 1 x USB-C, 1 x USB-A | Max output: 30W  

Why we like it: It's tough! Really tough! 

According to the manufacturer this can withstand a 50-foot drop onto concrete, a shotgun blast, 1,500 lbs of crushing force, and even the blast from 1.5 lbs of explosives. It's also IP68 rated for dust and water resistance, capable of handling submersion for 45 minutes, and temperature-tested to endure conditions ranging from 40°F to -15°F.

I didn't have a shotgun or explosives handy, so I dropped it, threw it around, drove over it, and dropped bricks on it from a height, and it survived that abuse with nothing more than a few scratches.

Review: Dark Energy Poseidon Pro

Who's it for: This is the power bank for those who expect their gear to encounter the toughest conditions!

Who should look elsewhere: Anyone who's not expecting their power bank to have to survive a 50 foot drop, being shot at, or an explosion!

Dark Energy Poseidon Pro tech specs: Capacity: 10,200mAh | Ports: 1 x USB-C, 1 x USB-A | Max output: 18W  

Why we like it: It's thin, light, and highly portable.

At 120 grams and 8.8 millimeters thin, this is something that feels like it blends in with the aesthetic of the iPhone once it's snapped onto the MagSafe ring. There were plenty of times when I forgot that it was attached to my iPhone.

The high-strength carbon fiber is lighter than aluminum and stronger than steel, making the CarbonMag 5K a durable package. When in Marrakesh, Morocco, I dropped mine onto cobbled streets twice from about one meter, and the power bank was totally unscathed.

Review: Sharge CarbonMag 5K

Who's it for: The adventurers out there who want to keep their smartphone topped up throughout the day. 

Who should look elsewhere: 5,000mAh is fine for a day (or two at a push) of keeping your smartphone going, but if you have multiple devices to charge, you're going to need something with 10,000mAh or above capacity. 

Sharge CarbonMag 5K tech specs: Capacity: 5,000mAh | Ports: 1 x USB-C, 15W MagSafe | Max output: 20W  

• Thin (8.8 mm) and light (120g) makes this perfect for travel
• Carbon fiber finish is stylish and hardwearing

• No IP rating, so keep this away from water!

Why we like it: It's thin, light, and highly portable.

At 120 grams and 8.8 millimeters thin, this is something that feels like it blends in with the aesthetic of the iPhone once it's snapped onto the MagSafe ring. There were plenty of times when I forgot that it was attached to my iPhone.

The high-strength carbon fiber is lighter than aluminum and stronger than steel, making the CarbonMag 5K a durable package. When in Marrakesh, Morocco, I dropped mine onto cobbled streets twice from about one meter, and the power bank was totally unscathed.

Review: Sharge CarbonMag 5K

Who's it for: The adventurers out there who want to keep their smartphone topped up throughout the day. 

Who should look elsewhere: 5,000mAh is fine for a day (or two at a push) of keeping your smartphone going, but if you have multiple devices to charge, you're going to need something with 10,000mAh or above capacity. 

Sharge CarbonMag 5K tech specs: Capacity: 5,000mAh | Ports: 1 x USB-C, 15W MagSafe | Max output: 20W  

Why we like it: The Ugreen Nexode 20,000mAh power bank is a powerhouse of functionality. It offers a massive 20,000mAh capacity, capable of charging modern smartphones multiple times and even providing more than one full charge for a laptop. Despite its size and weight (1 pound), it remains airline travel-friendly. 

The TFT display is a standout feature, providing detailed information such as battery capacity, inputs/outputs, real-time voltage, current, and power curve. 

Additionally, the 130W combined output across its three ports (two USB-C and one USB-A) ensures fast and versatile charging.

Review: Ugreen Nexode 20,000mAh 130W

Who's it for: This power bank is ideal for frequent travelers, tech enthusiasts, and professionals who need to charge multiple devices on the go, including laptops and smartphones. Its high capacity and fast charging capabilities make it perfect for those who rely heavily on their devices throughout the day.

Who should look elsewhere: If you prioritize portability and lightweight design, this power bank might not be the best choice due to its chunky size and 1-pound weight. Those who only need a power bank for occasional smartphone charging may find this device overkill for their needs, while those on a tight budget might want to explore more affordable options, as this power bank's advanced features and high output come at a premium price.

Ugreen Nexode 20,000mAh, 130W tech specs: Capacity: 20,000mAh | Ports: 2 x USB-C, 1 x USB-A | Max output: 130W 

• High power capacity, enough for several smartphone recharges or a good laptop top up.
• Enough output power to run a laptop
• Easy to read OLED display
• Trickle charge mode

• Chunky (2.13 x 2.01 x 5.16 inches) and heavy (1 lb) so it's more a portable charger to go into a bag than a pocket!

Why we like it: The Ugreen Nexode 20,000mAh power bank is a powerhouse of functionality. It offers a massive 20,000mAh capacity, capable of charging modern smartphones multiple times and even providing more than one full charge for a laptop. Despite its size and weight (1 pound), it remains airline travel-friendly. 

The TFT display is a standout feature, providing detailed information such as battery capacity, inputs/outputs, real-time voltage, current, and power curve. 

Additionally, the 130W combined output across its three ports (two USB-C and one USB-A) ensures fast and versatile charging.

Review: Ugreen Nexode 20,000mAh 130W

Who's it for: This power bank is ideal for frequent travelers, tech enthusiasts, and professionals who need to charge multiple devices on the go, including laptops and smartphones. Its high capacity and fast charging capabilities make it perfect for those who rely heavily on their devices throughout the day.

Who should look elsewhere: If you prioritize portability and lightweight design, this power bank might not be the best choice due to its chunky size and 1-pound weight. Those who only need a power bank for occasional smartphone charging may find this device overkill for their needs, while those on a tight budget might want to explore more affordable options, as this power bank's advanced features and high output come at a premium price.

Ugreen Nexode 20,000mAh, 130W tech specs: Capacity: 20,000mAh | Ports: 2 x USB-C, 1 x USB-A | Max output: 130W 

Why we like it: The Cuktech P-series 25,000mAh power bank is a true standout in a sea of ordinary power banks. Its premium design and advanced technology make it a game-changer. With a massive 25,000mAh capacity, it's perfect for extended trips, and its durability ensures it can handle heavy use. 

And a graphical display of input and output wattages is just a tap away, making it a dream for tech enthusiasts. 

Who's it for: This power bank is perfect for tech enthusiasts and frequent travelers who need a high-capacity, reliable power source. Its stylish design and futuristic features will appeal to those who appreciate cutting-edge gadgets. The detailed TFT display makes it ideal for users who want to monitor their power usage in real time. If you're someone who values both functionality and aesthetics, this power bank is a great choice.

Who should look elsewhere: If you're looking for a lightweight and compact power bank, the Cuktech P-series might not be the best fit due to its large capacity and size. Additionally, users who only need a power bank for occasional smartphone charging may find this model overkill. Those on a tight budget might also want to explore more affordable options!

Cuktech P-series tech specs: Capacity: 25,000mAh | Ports: 2 x USB-C, 1 x USB-A | Max output: 210W  

• High capacity, charge your smartphone and tablet, and give your laptop a boost too!
• Readable display
• Massive 210W max output
• Trickle charging

• Awkward shape for pocket carry

Why we like it: The Cuktech P-series 25,000mAh power bank is a true standout in a sea of ordinary power banks. Its premium design and advanced technology make it a game-changer. With a massive 25,000mAh capacity, it's perfect for extended trips, and its durability ensures it can handle heavy use. 

And a graphical display of input and output wattages is just a tap away, making it a dream for tech enthusiasts. 

Who's it for: This power bank is perfect for tech enthusiasts and frequent travelers who need a high-capacity, reliable power source. Its stylish design and futuristic features will appeal to those who appreciate cutting-edge gadgets. The detailed TFT display makes it ideal for users who want to monitor their power usage in real time. If you're someone who values both functionality and aesthetics, this power bank is a great choice.

Who should look elsewhere: If you're looking for a lightweight and compact power bank, the Cuktech P-series might not be the best fit due to its large capacity and size. Additionally, users who only need a power bank for occasional smartphone charging may find this model overkill. Those on a tight budget might also want to explore more affordable options!

Cuktech P-series tech specs: Capacity: 25,000mAh | Ports: 2 x USB-C, 1 x USB-A | Max output: 210W  

Why we like it: The Nitecore NB10000 Gen III is a power bank built for adventure, from its IP68 waterproof and dustproof rating to the carbon fiber-clad design is not only ultra-durable but also keeps it ultralight and ultra-thin. Weighing in at just 5.29oz and measuring 0.42 inches thick, it delivers a 22.5W maximum output and can charge two devices simultaneously or charge while being recharged. 

With the ability to withstand extreme conditions, including freezing temperatures (-18°C/0°F), this power bank continues to deliver solid performance even in the harshest environments.

Review: Klarus K5

Who's it for: This power bank is ideal for outdoor enthusiasts, hikers, campers, and anyone who spends extended time in environments without access to outlets. Its waterproof, dustproof, and freeze-resistant design makes it perfect for rugged, extreme conditions. The lightweight and slim profile means it's easy to carry for days on end, making it a great choice for travelers and adventurers looking for a reliable, durable power source.

Who should look elsewhere: If you need a power bank with higher capacity for charging multiple large devices or sustaining power over several days, the NB10000's 10,000mAh capacity may not be sufficient. Those on a tight budget, this premium, rugged design comes with a price tag that's higher than more basic options.

Nitecore NB10000 Gen III tech specs: Capacity: 10,000mAh | Ports: 1 x USB-C, 1 x USB-A, | Max output: 22.5W 

• Thin and lightweight
• IP68 water for dust and water-resistance
• Built-in trickle charge feature

• No covers for the USB ports allow dirt and water to collect
• No larger option

Why we like it: The Nitecore NB10000 Gen III is a power bank built for adventure, from its IP68 waterproof and dustproof rating to the carbon fiber-clad design is not only ultra-durable but also keeps it ultralight and ultra-thin. Weighing in at just 5.29oz and measuring 0.42 inches thick, it delivers a 22.5W maximum output and can charge two devices simultaneously or charge while being recharged. 

With the ability to withstand extreme conditions, including freezing temperatures (-18°C/0°F), this power bank continues to deliver solid performance even in the harshest environments.

Review: Klarus K5

Who's it for: This power bank is ideal for outdoor enthusiasts, hikers, campers, and anyone who spends extended time in environments without access to outlets. Its waterproof, dustproof, and freeze-resistant design makes it perfect for rugged, extreme conditions. The lightweight and slim profile means it's easy to carry for days on end, making it a great choice for travelers and adventurers looking for a reliable, durable power source.

Who should look elsewhere: If you need a power bank with higher capacity for charging multiple large devices or sustaining power over several days, the NB10000's 10,000mAh capacity may not be sufficient. Those on a tight budget, this premium, rugged design comes with a price tag that's higher than more basic options.

Nitecore NB10000 Gen III tech specs: Capacity: 10,000mAh | Ports: 1 x USB-C, 1 x USB-A, | Max output: 22.5W 

Top portable chargers compared

Which is the best power bank really depends on what you want from a power bank -- for some, portability is the main feature, for others it might be having the maximum possible output power. For others, it might be how many ports it has. 

Which is the right power bank for you?

As always, it depends on your needs and what you're looking for. Some people want giant power banks for multi-day adventures, others want something small to get them out of an emergency. Some want something stylish and sleek, while others want total geekery and get something that's more like a charging computer than a simple power bank.

Factors to consider when choosing a power bank

A variety of factors impact the quality and usability of power banks. Here are some things to take into consideration before buying one:

• Battery size: Power banks range from giving your device a single charge to several charges, and may increase in size and price accordingly. I think of anything below 7,500 mAh as a small power bank that perfect for topping up a smartphone, 7,500 to 20,000 mAh as a medium power bank good for a few recharges, and maybe an emergency top-up of a laptop, and 20,000 and above as a big power bank better suited to those wanting to charge laptops and such or who are going to be away from a power outlet for a few days.
• Portability: Some people want giant power banks for multi-day adventures, while others want something small they can hold in their pocket or purse for daily charging or emergencies. 
• Design: Some want something stylish and sleek, while others want something more like a charging computer than a simple power bank.
• Weight: Big power banks can really pull on your pocket or bag, so choose wisely if you intend to carry it around with you.
• Ports: Do you want one or two or more ports? Do you need USB-A or will USB-C be fine? These are points to consider before making a purchase.
• Passthrough: Do you want to be able to charge the power bank while it is charging other devices? I find this a handy feature when traveling because I can use the power bank as a charger for multiple devices so I only need a small wall charger.

How we test power banks

I test and review a lot of power banks, and this allows me to filter through hundreds of units to find the best of the best. On top of that, I use power banks a lot when traveling or going off-grid for hiking and camping. This allows me to get real-world, hands-on experience of the product for extended periods of time. Finally, every product that I use, test, or review is thoroughly safety tested to make sure that you'll be buying a reliable, safe product. 

Here are the key factors I consider when testing power banks: 

• Capacity: I've seen plenty of companies make exaggerated claims about their power bank's capacity. I charge and discharge each power bank several times to test the rated capacity to make sure that this corresponds with the capacity stated on the box.
• Power output: A lot of cheaper power banks might be able to hit the rated power output for short periods, but this can take a dive under heavy load or when the power bank gets warm. I test every power bank under heavy load to make sure that it can output the maximum stated output power for extended periods.
• Safety: If the power bank overheats in use or when charging, it doesn't make this list. Plain and simple. 
• Robustness: How does the power bank stand up to regular use? Does the shell resist scratches and knocks? Are the ports high quality and durable? If it's going to make this list, it must be tough enough to put up with heavy use.

Latest info on power banks in 2025

What are the tariffs in the US?

The recent US tariffs on imports from countries like China, Vietnam, and India aim to boost domestic manufacturing but are likely to drive up prices on consumer electronics. Products like smartphones, laptops, and TVs may become more expensive as companies rethink global supply chains and weigh the cost of shifting production.

Accessories such as power banks are predominantly manufactured in these regions, are now subject to tariffs as high as 54% on Chinese imports and 46% on Vietnamese goods. As a result, consumers may see price increases of approximately 20% on these items. 

Manufacturers are exploring options like relocating production to countries with lower tariffs, but such shifts are complex and may not provide immediate relief. In the short term, shoppers should anticipate higher costs for accessories due to these trade policies.

Right now, it looks like some tech may be exempt from the issued tariffs, but since it's always changing and developing, we are keeping an eye on it and will update you on the latest.

FAQs on power banks

Are power banks and portable chargers safe?

This is a huge question. 

On the whole, yes. I've tested hundreds of power banks and portable chargers from a myriad of companies, and as long as you steer clear of the cheap no-name junk that you might find in dollar stores and gas stations you should be safe.  

You no doubt noticed I said "should" there. Let me explain what I mean.

First, even the best power bank makers can and do suffer from manufacturing issues, and these can result in recalls. There were a few last year, and a good reason to buy your power banks from Amazon is that this company sends out emails to customers when this happens. 

Another issue is that power banks can get damaged, and damaged power banks can be unpredictable. While modern lithium batteries have a number of built in safety features to prevent anything catastrophic from happening, sometimes things can still go wrong. One of the worst things that you can expose a power bank to is moisture, as this can cause short circuits, which in turn can cause fires. 

But remember, there are hundreds of millions of power banks out there, and incidences are very rare. On the grand scheme of things, lithium batteries are incredibly safe. 

Is there a limit of the size of power bank I can take on an airline?

There is, but fear not, because it's actually quite a generous limit. 

FAA rules (and this rule is mirrored by most aviation authorities) allow you to take a power bank with a capacity up to 100Wh or 27,000mAh without declaring it. Beyond this, you must check with the airline and declare the power bank.

Note that all power banks and anything with a lithium battery must be taken as carry and NOT put in the hold.

Can you simultaneously use and charge a power bank?

Most modern power banks have a feature called pass-through charging that allows you to charge it and use it to charge other devices simultaneously. This is a handy feature if you have limited number of power outlets and what to charge multiple devices -- for example, when traveling. 

How long do power banks last?

Lithium-ion batteries -- the batteries found in most power banks -- are good for about 800 recharge cycles.  This means if you used a power bank daily, and each day you ran it empty before recharging it for the next day, you'd get more than two years of life.

In reality, people easily get 5 years from a power bank, and normally, it's technology moving forward and making the power bank obsolete that kills it, not usage.

How long does charging time vary across power capacity levels?

The bigger the power bank's capacity, the longer it will normally take to charge. However, this depends on a lot of factors -- from whether it charges using USB-A or USB-C, to the power output of the charger doing the charging.

Other power banks to consider

Here are a couple of alternative power banks to consider -- all from reputable manufacturers and all offering safe, reliable charging.

Latest Updates: 

• In the latest April update, we tested Dark Energy's Poseidon Pro rugged power bank, adding it as the perfect choice for those looking for a rugged power bank that can survive pretty much everything that Mother Nature can throw at it. 

Further ZDNET Tech Coverage

ZDNET Recommends