10 Best Ultra High Capacity Power Banks

It’s not a guarantee that you’ll always be able to charge your devices. What if you’re on the go? Travelling is probably one of the biggest causes of battery anxiety. Nobody wants to be in that situation where you desperately need to use your device and you’re stuck.

What if it’s your cellphone that’s died and you need to make a call? Can you even remember the cell numbers you’d need to be able to make a call from a payphone?

So get ahead of the anxiety, and get a powerbank. Having a powerbank is like bringing a plug with you. All you need is your charger and the powerbank and you’re golden. It opens up a whole new world of portable charging.

But power banks themselves also come with a whole host of things that you need to consider. You don’t want to spend a fortune on a powerbank, only to realise it couldn’t even charge a toy car.

So we’ve done the research and found 10 of the best ultra high capacity power banks. Ultra high capacity, because it’s better to have more power than you need, than to run out of it and be in need.


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Most affordable ultra high capacity power banks cap out at around 50,000mAh. Renogy has beat the average by upping their capacity to a very respectable 72000mAh.

Though this powerbank is slightly expensive in general, when it comes to ultra high power banks it’s price is actually considered average. 

The Renogy power bank comes with 2 high speed USB ports that allow you to connect your wires for charging.

But it’s also taken into account that not everyone needs a wire, and has thoughtfully included a wireless charging pad where you can simply place your phone to charge.

The cigarette lighter port doubles up as a universal connection for laptop charging cables and other connections that might not work with a USB connection. 

This versatile power bank also comes with an LED light built into its tail. Though it takes up to 6 hours to recharge at a time, this is because it packs so much power. There’s enough power in one of these to be able to charge your phone up to 15 times over.

It can charge up to 5 devices at a time. Plus there’s also the option of recharging this pack using solar power, so you don’t have to worry about running a high electricity bill. 


  • Charges up to 5 devices at a time
  • Cigarette lighter port
  • 2 high speed USB ports
  • Could charge phone up to 15 times in one use
  • Wireless charging
  • Up to 6 hours recharge time
  • Can even support solar panels
  • LED light in tail


  • Relatively expensive
  • Long recharge time


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At 44400mWh, the HALO Bolt wireless power bank may not have as much capacity as the Renogy, but that doesn’t mean it’s any less capable. As you may have already guessed from the name, it’s able to use wireless charging just like the previous entry.

The HALO Bolt actually comes with the ability to jumpstart a car dead battery. In case you didn’t know, that’s not something most power banks can do. 

As well as that it also comes with a plug port. So you can directly charge anything that uses a plug, and don’t have to worry about getting an adapter, like you would with power banks that only have USB ports.

Speaking of USB ports the HALO Bolt doesn’t leave them out, and comes with two. It also comes with a floodlight, power level indicator, AC/DC power button, and has enough power to charge up to 4 devices at a  time. 

If you’re one for choices, it’s handy that this power bank also comes in many different colors, so you can choose the right one for your aesthetic. But perhaps one of the most innovative features of the HALO Bolt is that it has reverse and short circuit protection.

This means if the powerbank is ever overloaded or there is a circuit fault, your devices won’t be electrified or affected. 


  • Charges up to 4 devices at a time
  • Multiple colours
  • Wireless charging
  • Can jump start a car
  • Plug
  • AC outlet
  • Reverse and short circuit protection


  • Only 44400mWh


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ALEXHAN is the motherlode of high capacity power banks. It has the highest capacity of any power bank on this list.

At a whopping 100,000mAh, this power bank has enough energy to power a few solar panels, your phone 50 times over, and probably a small house. It’s worth wondering what you’ll need all that power for. 

But with great power comes an even greater recharge time, of over four hours. Luckily, bidirectional charging means you’re able to charge the powerbank and use it at the same time. An easy to read digital display will let you know when it’s ready.

You may be worrying about overheating, given that this little power bank holds so much power, but the creators of the ALEXHAN power bank have made sure to include inbuilt cooling technology .

Though unfortunately this power bank doesn’t have the benefit of wireless charging, by forsaking that they’ve managed to make a pretty nifty, compact design. Sleek and efficient, the ALEXHAN is one of the most lightweight power banks out there. 


  • Digital display
  • Bidirection fast charging
  • Lightweight and Portable
  • Cooling technology


  • No wireless charge
  • Expensive


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The Tranmix Solar Battery pack is unique because of it’s Hybrid nature. While you can charge it via plug for a few hours, it also has the ability to charge using solar power. This makes it the perfect choice if you’re looking for a power bank that you can use outdoors.

Though it may not have as much energy as the ALEXHAN, we’d say 30,000mAh is pretty respectable. It’s enough to last you about a week.

As well as USB ports, the Tranmix also comes with 3 fast charging samsung ports. Even if you don’t have a samsung, any USB type C charger should fit.

As well as an inbuilt flashlight this power bank also has a heavy duty case to prevent any breaks or cracks if it should slip. That makes this powerbank an ideal choice for those thinking about camping.

And you don’t have to worry about this power bank breaking the bank. It’s incredibly affordable!


  • Affordable
  • 3 Fast samsung charging ports
  • Solar powered
  • Heavy duty cover, shockproof and splashproof
  • Enough power to last a week
  • Flashlight


  • Only 30000mAh


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Don’t be fooled by the name. The MAXOAK laptop power bank may have laptop in the name but it can be used for any kind of device that will be able to connect via a USB charge or the 12v or 20v slots.

Because it uses a DC output this means it has a much higher discharge efficiency, uses lower heat, but may need to recharge for a little bit longer than other power banks.

The makers of the MAXOAK made sure to be thoughtful about their design, deciding not to include a fan. Now you may be worrying about overheating but the DC output ensures that won’t happen, and the result is that this is a nice and quiet power bank.

At 50,000mAh, this power bank can actually hold a decent amount of power. Though it does take about 6-8 hours of recharging time too. This power bank can be recharged over 1000+ times without you having to worry about the quality deteriorating.


  • DC Output 
  • No fan, silen t design
  • Multiple outputs
  • Lightweight and portable
  • Can be recharged more than 1000+ times
  • 8+ hours worth of battery life


  • 6-8 Hours recharge time


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Krisdonia is another awesome ultra high capacity power bank that we’d recommend. Holding up to 50,000mAh, it has multiple outlets both USB and laptop ones to ensure it fits with most devices.

But as well as this, Krisdonia goes above and beyond by actually supplying 28 different laptop connectors with this power bank. 

It’s a little more advanced than other power banks because of its ability to let you actually set your own voltage. This is great for some more sensitive devices.

Moreover there’s a built in PASS THROUGH function, which allows you to charge your laptop and also charge other devices too. Similar to bidirectional charging. 

Along with that comes a power button designed to help you control the charge flow of the power bank, so no more wasted energy. For a power bank that does so much, it’s incredibly lightweight.

There’s no need to worry about carrying a hefty load with the Krisdonia power bank, as it’s small enough to fit into most handbags or satchels. 


  • 28 laptop connectors included
  • Pass through charging, can charge and discharge simultaneously
  • Can set the voltage 
  • Lightweight and durable
  • Multiple outlets
  • Built in PASS THROUGH function


  • 7 hours recharge time


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The PD Crave Power bank will leave you craving for more battery life, no more. Equipped with 50,000mAh, that’s more than enough power to charge 3 laptops simultaneously and more for hours.

The power button is strategically placed to be able to conserve energy when the power bank is not needed.

As well as the usual USB ports, the PD Crave comes with USB type C ports, (also known as samsung ports) and a 19 piece adapted kit. The adapter kit comes included with the power banks and it has everything from barrel chargers to iPhone adapters.  

Designed to be lightweight and durable, to put things in perspective the PD Crave is no wider than the average pen. So this would definitely fit in a bag, or even a pocket.

And you don’t have to worry about knowing if it  has got charge, as there is an easy to understand LED indicator on the side. The one thing we would say about this power bank is that it is quite expensive. 


  • LED Indicator
  • Power button
  • USB and USB type C ports
  • 19 piece adapted kit
  • 50k mAh
  • Charge up to 3 laptops at a time


  • Expensive


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ROMOSS are a brand dedicated entirely to making power banks, so if this one doesn’t tickle your fancy then there are over 30 other’s to browse from.

But we’ve picked the ROMOSS 60000mAh as our choice for you because of it’s ultra high capacity, and great features. 

At 60,000mAh, it’s got enough power to charge a phone about 21 times over and is roughly the equivalent of 3 weeks battery life.

The LED interface is brilliant at showing you how much power you have left but also has the option of allowing you to choose and adjust the output of your power.

This is handy since the ROMOSS power bank is able to charge up to 4 different devices from 4 different outputs at a time. 

It’s a great, lightweight, design and not too heavy to be portable. However, the only bone we have to pick with the Romoss is the chunky shape of the design.

It’s bulge-y enough to only be able to fit into a bag, and not a pocket. Stick it in your trouser pocket and you might have people wondering if you’re just that happy to see them. 


  • charge phone 21 times over
  • LED interface
  • 4 Different kind of outputs
  • High speed charging for your device
  • Micro USB input
  • 3 weeks worth of battery life
  • Adjustable output power


  • Chunky


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The idea behind the supertank was that it is meant to be the tank of power banks. Reliable and powerful. It has both USB and USB-C outputs so it caters for a variety of devices.

The Zendure Supertank is one of the few power banks out there to have an ultra fast recharge speed of about only an hour, and is capable of charging your devices quickly too using X charge. 

The LED display shows you just how much battery power you have left. It’s capable of adding up to 8 hours of battery life to your devices and still retain up to 95% of its charge because of its leak protection feature.

The PD directional switch means that, while you can’t charge the power bank and your devices at the same time, you can use the switch to reverse the input/output of power.

Zendure’s outer casing is built to be durable and survive the harshest conditions, so if you’re an outdoor enthusiast then this would be perfect for you. 


  • USB/USB C Outputs
  • X charge
  • 1 Hours recharge
  • LED display
  • Extremely durable
  • PD Directional switch
  • Leakage prevention


  • Only 27,000mAh


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We won’t lie, the NEXPOW will definitely not fit in your pocket. Looking more like a toolbox than a power bank, it’s able to contain up to 80,000mAh so we’ll forgive the clunky design.

It’s capable of charging multiple devices for hours at a time using its AC, PD, and DC outputs. The inbuilt plug outputs are capable of charging large devices, like fans.

And if you’re ever in need of power, then the NEXPOW easily uses solar energy to charge itself up. Perhaps the best feature is the inbuilt torch. It’s not just a simple flashlight, oh no.

This torch has four different features, including a floodlight or emergency beam that’ll light up your way better than the sun and blind anyone who looks into it. 

So while it may not be that small, it’s forgiven for that. Especially because the size doesn’t equate to portability. Included in the design is a handle designed for easy transportation.


  • Plugs
  • Multiple charging ports
  • Torch with 4 different light functions
  • Solar powered
  • AC/PD/DC outputs
  • Handle


  • Big
  • Expensive

Buyers Guide

Here we go over the basics of what to consider when buying a power bank.

Usage & Devices

Before automatically going for the powerbank with the most mAh’s, have a think about whether you’ll actually need that much power. Especially because the more mAh’s the more expensive the powerbank.

If you’re a constant traveler or outdoor enthusiast, then maybe the hefty power banks are for you. But if you just need something to keep your devices going in between journeys, then consider some of the smaller, more portable ones.

10 Best Ultra High Capacity Power Banks

Frequently Asked Questions

How Do Power Banks Work?

Power Banks are incredibly easy to use. All you need to do is make sure they are charged up first, then attach your devices to charge. Either they will automatically charge once hooked up, or there will be a power button.

Alongside this there’s usually a display telling you how much batter power you have left. 

What’s mAh?

MAh, or Milliampere/hour, is a unit of measurement for the capacity of a battery or power bank. Usually the more mAh a power bank has the better. But you’ll also find that the more they have, the more expensive they are too. 

What Are The Safety Standards UL1642 And UL2056?

You may have seen these in product descriptions of power banks, with each of them saying that they adhere to these. These are a legal safety requirement in the US. UL1642 is a safety standard for Lithium Ion batteries, and UL2056 is a safety standard for DC output devices. 

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Brett Jones
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