Best power banks 2024: Portable charging for astronomers

Person outside using one of the best power banks to charge smartphone
The best power banks enable skywatchers and astrophotographers to have extra peace of mind when they're on the go. (Image credit: Getty)

One of the best power banks or power stations is the ideal way to make sure your devices never run out of juice while you're out and about. They store up power when you charge them off the mains at home so that they're ready to give you a much-needed power boost when you find yourself away from a plug. Astrophotographers, hikers, campers and anyone else who spends a lot of time outdoors can benefit from being able to keep their phones, camera batteries or flashlights full of charge when working off-grid.  

Power banks come in a range of different designs, sizes and capacities. Some are small enough to fit in your pocket and make the perfect companion for your daily commute, while others are designed with high capacities to help you charge multiple devices at the same time. Others have handy additional features like being able to double up as a flashlight or handwarmer for those cold late-night shooting sessions. We've included a wide range of options on this list so you can decide on the best model for your needs.  

If you're looking to upgrade the rest of your kit, we have guides to the best cameras and best telescopes, along with lists of useful accessories like the best headlamps and best camera backpacks

Amazon Prime Day starts tomorrow,  July 16th and it's a great opportunity for Prime members to find power banks for cheap. Our Amazon Prime Day space deals page shows a round up of all the best deals on the site — make sure to check it regularly so you don't miss a bargain.  

The quick list

Best power banks and power stations we recommend in 2024

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Best power banks we recommend 2024

Best for portability

Best for portability: A compact, no frills and FAA carry-on-compliant, reliable power bank

Specifications

Capacity: 74Wh/ 20,000 mAh
Output ports: 1 x USB C-PD, 2 x USB A
Charging time: 5 hours by 18W USB C-PD
IP rating: None
Weight: 1 lb (465g)

Reasons to buy

+
Quick Charge 3.0 Protocol (fast charging)
+
Portable and durable
+
Reliable

Reasons to avoid

-
No % charge indicator
-
Multiple cables needed (USB-C to USB-C and USB-A to everything else)
-
No water resistance
Buy if:

✅ You want something simple: This power bank is simple, portable and reliable. With no fancy screens or other functionality, it just does what it needs to.

You're after Quick Charge 3.0 compatibility: This is required to activate fast charging modes on compatible devices.

Don't buy if:

❌ You need something waterproof: There is no waterproof rating so it's best you only use it where there's guaranteed to be no water or heavy condensation/moisture.

You want to see the exact level of charge remaining:  This power bank utilizes a 4-light LED indicator to show how much percent charge is remaining, so it's not as accurate as other models.

The bottom line:

🔎 BioLite Charge PD 20/40/80: A no-fuss, affordable power bank that can be relied on for multiple charges over a couple of nights. We really like BioLite's mission too.

We're big fans of BioLite as a company. This manufacturer of outdoor and off-grid products is on a mission to provide 20 million people with clean energy and to avoid 3 million tons of CO2 emissions by 2025. By opting for a BioLite product, you're doing your part to help that mission. But that's just one of the reasons we like the BioLite Charge 80: It's also a very neat little power bank.

There are three different versions of BioLite's Charge power bank that are very similar in terms of specifications. Here we're looking at the Charge 80 since it has the largest capacity. It is rugged and simple to use, and in our BioLite Charge PD review, we noted that its size-to-capacity ratio felt just about right. It's able to charge multiple devices more than once over a couple of days — notably, it can charge the BioLite HeadLamp 425 (which features on our best headlamps for astrophotography list) approximately 16 times. 

One of the standout features is the Quick Charge 3.0 Protocol which is needed to activate fast charging modes for compatible devices. This power bank has an LED indicator with four bars that let you know how full the charge is (25%, 50%, 75% or 100%). While some might prefer an LCD screen that shows exact charge numbers, we think the LED indicator is more than enough.

The Charge PD ships with a USB-A to USB-C cable, but you'll have to supply your own USB-C to USB-C cable or something with multiple ends for a more universal fit.

The power bank can operate in temperatures between -20C to 40C, so unless you travel to the most hostile conditions, you shouldn't run into any issues in that department. However, it's not waterproof, so you'll want to keep it somewhere dry.

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Test Results
AttributesNotes
DesignSimple, grey and yellow, rounded edges
FunctionalityNot waterproof but robust, small and light
PerformanceGreat, does what you'd need it to inc PD which charges devices three times faster than a 5W charger.

Best value

Explore Scientific 8300mAh Power Bank with Red LED Flashlight

Best value: Made with the astronomer in mind, power your off grid all night skywatching sessions

Specifications

Capacity: 99.6Wh/ 8300 mAh
Output ports: USB Port 5 VDC, 2A 12 VDC, 6A
Charging time: 6 hours max
IP rating: None
Weight: 1.4 lbs (635g)

Reasons to buy

+
Operates in extreme temperatures
+
Designed with astronomers in mind
+
Red LED Flashlight built-in

Reasons to avoid

-
Charges one device at a time
-
Brick-like
-
No cables supplied
Buy if:

You want the red light functionality: Having a built-in red light is particularly useful for astrophotographers.

You'll be using it in extreme temperatures: It can happily operate in temperatures from -4 to 140F (-20 to 60C)

Don't buy if:

You want something pocketable: This power bank is brick-like and pretty heavy. You can find lighter models with higher capacity.

You want something that's quick to charge: Some power banks take less than two hours to charge to 100%, but this one can take up to six hours.

The bottom line:

🔎 Explore Scientific 8300mAh Power Bank with Red LED Flashlight: If you're heading out for a night of skywatching or astrophotography and require a red light and some backup 'juice', this will serve you well.

For astronomers and astrophotographers, the Explore Scientific USB Power Bank with Red LED Flashlight is a great choice. Not only does it have enough power to see you through the night, but the red flashlight is a nifty integration that will help you maintain your night vision.

Granted, it's not the brightest flashlight and it won't light up whole areas like one of the best headlamps for stargazing would. But as an additional feature to a power bank, it's very useful indeed, whether you're checking star charts or fiddling around with the settings on your camera.

This device definitely doesn't look as 'sleek' as some of our other picks, but it's covered in a thick layer of rubber armor that keeps out dirt and moisture while shielding the electronics from minor impacts. It can operate in temperatures from -4 to 140F (-20 to 60C), so there's no need to worry about protecting it from extreme temperatures.

The flashlight has a tactile toggle switch that you can use to turn it on and off. It also has a two-point attachment point so you can hang it from a convenient place, like your tripod frame. There are five LED indicators on the body that show you the amount of power it has left, so you won't get caught out unexpectedly.

Best for keeping in your car

Best for keeping in your car or camper thanks to its simple, compact design

Specifications

Capacity: 25,000 mAh
Output ports: 2 x USB-C, 1 x USB A
Charging time: 1.5 hours
IP rating: None
Weight: 1.13 lbs (513g)

Reasons to buy

+
Simple design
+
Has both USB-C and USB-A ports
+
FAA carry-on compliant

Reasons to avoid

-
Larger than comparable capacity power banks
-
Heavier than comparable capacity power banks
Buy if:

✅ You want something carry-on compliant: This is almost the maximum capacity power bank you can take in your hand luggage.

You want something that charges quickly: During our tests, we charged this power bank from 0-100% in just 90 minutes.

You need both USB-C and USB-A ports: This has both, so there is no need to carry an adapter with you.

Don't buy if:

❌ You want something for carrying around in your backpack: This might not be the ideal power bank for you as it's on the heavier side.

❌ You want wireless charging: This particular Ugreen model doesn't feature wireless charging, but some of their other models do.

The bottom line:

🔎 Ugreen 2500mAh Power Bank: We really like this power bank and wouldn't hesitate to recommend it as a simple, elegantly-designed, high-capacity and reliable model.

The Ugreen 25000mAh power bank is a simple but sleek-looking device with some impressively fast charging times. Its capacity is more than large enough for powering multiple devices, but it's also just under the maximum limit permitted for hand luggage, making it very travel-friendly. You get USB-C and USB-A ports on this device, as well as a USB-C to USB-C cable in the box.

During our Ugreen 25000mAh power bank review we were able to charge the power bank itself from empty to full in just 1.5 hours, and we charged a laptop from empty to full in the same amount of time.

The two-way charging featured on this model means that it can both charge and give charge at the same time, so it's an ideal charging hub for multiple devices. It also allows for trickle charging and has built-in surge and short circuit protection to give you peace of mind.

One of our favorite features on the Ugreen power bank is the built-in digital display. It lets you see exactly how much power is left in it, which means there's no guesstimation involved unlike with with power banks that use light indicators instead. The level of precision is very welcome as it means you're able to keep careful tabs on your power usage, knowing exactly what you can still afford to charge.

One thing to bear in mind is that this power bank is heavier than some other similarly-sized models. As such, it's not the best for carrying around with you, but it is very useful for keeping in your car or tent for charging devices as you travel. It would also have been nice to see a wireless charging feature, particularly as the Ugreen 25000mAh power bank's size would allow for it, but its absence shouldn't be too much of a deal-breaker for most.

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Test Results
AttributesNotes
DesignProfessional looking — stylish and fuss free with a digital power indicator
FunctionalityUSB-C and USB-A ports are useful, two way charging so you can use it as a charging hub
PerformanceIncredibly fast to charge, real time information is accurate

Best for longer charges

Anker PowerCore+ 26800 with Quick Charge 3.0

Best for longer charges: A premium, colossal capacity power bank

Specifications

Capacity: 26,000 mAh
Output ports: 3 x USB Type A
Charging time: 4 hours
IP rating: None
Weight: 1.3 lbs (591g)

Reasons to buy

+
Huge capacity
+
A good choice for large devices

Reasons to avoid

-
Quite big and bulky
-
Definitely not cheap
-
No IP rating
Buy if:

✅ You want to buy from a well-known and respected brand: Anker is one of America's leading USB charging brands.

Don't buy if:

❌ You primarily charge USB-C devices: This power bank has three USB-A outputs and takes Micro-USB input.

You need it last minute: It takes around six hours for a full charge. 

The bottom line:

🔎 Anker PowerCore+ 26800 with Quick Charge 3.0: A product from a well-respected brand with the maximum capacity allowed in your flight hand luggage, it intelligently delivers the optimum power to your individual devices.

Anker is a well-known USB charging brand in America, so we're always confident to recommend their high-quality products. The Anker PowerCore+ 26800 comes in a sleek aluminum design, with rounded corners and round battery indicator button surrounded by 10 small LED lights to help you keep track of how much charge you have left.  

Although it's a little bulkier than some of the other options on our list, measuring around 7 x 3 inches (18 x 8cm) and weighing 1.3 lbs (591g), it could still be a worthy travel companion thanks to its high capacity, which falls just under the carry-on limit for airplane travel. You can charge up to three devices at the same time with this power bank via the three USB-A ports, and it comes with a handy carry case.  

The Anker PowerCore+ 26800 features dual input ports, allowing it to halve the amount of time it takes to charge up at the wall, and it's also compatible with Qualcomm Quick Charge 3.0 technology to allow it to charge even faster — though you'll have to buy the wall charger separately to make use of this feature. With the additional wall charger, you can charge it from empty to full in around four hours, versus around six hours without it.  

It also boasts another inbuilt piece of technology called Power IQ which allows the power bank to identify connected devices and deliver the optimum charging speeds to all devices at the same time. Overall, it's a solid and reliable power bank that comes with an 18-month guarantee for further peace of mind.  

  • Need a camera backpack to carry your kit? Look no further than our handy guide.

Best for waterproofing

Otterbox Fast Charge Power Pack (15,000mAh)

Best for waterproofing: You can take this fast charging, rugged power bank with you in any weather

Specifications

Capacity: 55.5Wh/15,000mAh
Output ports: USB-C, USB-A, Qi Wireless 10W
Charging time: 4 hours approx
IP rating: IP54
Weight: 0.73 lbs (330g)

Reasons to buy

+
Durable with drop protection
+
Limited lifetime warranty
+
Supports wireless charging

Reasons to avoid

-
Basic LED power indicator
Buy if:

✅ You want wireless charging: This is the only power bank in this guide that offers wireless charging.

You want something pocketable: This is 140 x 73 x 22 mm so it should easily fit in your pocket. 

You want something waterproof: It has an IP54 rating, which means it isn't submersible, but it would be fine if you accidentally left it out in the rain.

Don't buy if:

❌ You like seeing real-time data: This power bank only has a basic LED indicator for charge levels.

You need to charge your devices multiple times: This is a low-capacity power bank that should be seen as a spare supply of power in case needed, rather than relying on it to keep you powered up.

The bottom line:

🔎 Otterbox Fast Charge Power Pack:  An extremely rugged and weatherproof power bank that has the added bonus of wireless charging.

The Otterbox 15,000mAh (also available as 10,000mAh) is a reliable outdoor companion. With a protective rubber shell, it's very hard-wearing so it's a great power bank to choose if you're off on an adventure that may involve a few knocks (or if you're a little accident prone).

Its IP54 rating means it's totally protected from dust ingress and allows for some water ingress too. While it obviously isn't fully submersible, the odd splash or a bit of rain isn't anything to worry about, so it's good for use in most weather conditions.

This power bank comes with wireless charging, which is very handy as it means you don't need to carry around extra wires and cables — providing your devices are wireless charging compatible, of course.

Some might be disappointed that the Otterbox doesn't have a display, which means you don't get an accurate numerical depiction of how much charge remains in the device. Instead, there's a basic LED indicator which lets you know when it's charging and when it's fully charged. 

The Otterbox comes in three colors: Twilight Black, New Blossom Pink and White Sands. The latter two make the device easier to spot among a sea of predominantly black photography gear, or if you're out on an astrophotography shoot in the dark.

Best for wireless charging

Lion Energy Eclipse Mag - 99.9Wh Wireless Charger

Best for wireless charging: The perfect choice if you want to eliminate the need for extra cables

Specifications

Capacity: 27,000 mAh
Output ports: 3 x Qi Wireless, 2 x USB-A, 1 x USB-C
Charging time: 1.5 hours
IP rating: None
Weight: 2 lbs (907g)

Reasons to buy

+
Wireless charging capabilities
+
Rugged and durable
+
Approved for airplane travel

Reasons to avoid

-
Expensive
-
No water resistance
-
Quite heavy
Buy if:

✅ You value wireless charging: You won't need to remember various different cables to charge your devices. 

Don't buy if:

❌ You're looking for a budget buy: This is one of the more expensive units on our list for its capacity.

The bottom line:

🔎 Lion Energy Eclipse Mag - 99.9Wh Wireless Charger: A great pick for anyone who wants to charge their devices wirelessly, especially for people who own all the Apple gear, but this makes it pricier for its capacity.

For those who want to go wireless, the Lion Energy Eclipse Mag is the ideal travel companion. Although it's relatively weighty at 2 lbs (907g), it's approved for airplane travel and has a chunky, rugged build so it should be able to withstand getting jostled around in your backpack. It has a high capacity of 27,000 mAh, too, so you won't find yourself running out of charge easily. 

The main selling point of this power bank is its wireless charging capabilities. It comes with three wireless charging pads on the top, one for charging your phone, one for wireless earbuds and one for an Apple Watch. It may appeal most to Apple enthusiasts who can charge their devices that way, but anyone will benefit from being able to charge their phone without having to remember to pack a cable. 

You also get two USB-A charging ports and one USB-C charging port that is rated for up to 85W, so it can be used to charge up your laptop. We were really impressed by how fast the power bank itself charges up from the wall. You can charge it from empty to full in around 90 minutes, and it's able to keep wirelessly charging your devices at the same time.  

This power bank is rated for over 1000 life cycles and comes with a hefty five-year warranty. Although it's fairly expensive compared to other models, it's a powerful little device that may be worth it if you enjoy being able to charge your devices wirelessly. 

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Test Results
AttributesNotes
DesignChunky and rugged
FunctionalityThree wireless charging options
PerformanceCharges from the wall in around 90 minutes

Best 3-in-1 device

Celestron ThermoTorch 3 Astro

A handy 3-in-1 power bank, hand warmer and red flashlight for night time adventures

Specifications

Capacity: 3550 mAh
Output ports: 1 x USB Type A
Charging time: 2 hours
IP rating: IPX4
Weight: 10.58 oz (300g)

Reasons to buy

+
Multi-functional
+
Rechargeable (no external batteries)
+
Two year warranty

Reasons to avoid

-
Micro-USB Charging (USB-C preferred)
-
Low capacity power bank
Buy if:

✅ You want to carry as few things as possible: Triple functionality ultimately means you have less kit to take with you.

Don't buy if:

❌ You need to charge your devices multiple times: This is a low-capacity power bank, so it's not going to keep all your gear charged for days at a time.

The bottom line:

🔎 Celestron ThermoTorch 3 Astro: A handy multi-functional device for astronomers and astrophotographers. It's small and light, so it can be kept in your pocket to keep your hands warm on night-time adventures, and used as a red torch or power bank when you need it.

There's an awful lot to like about the Celestron ThermoTorch 3 Astro. As its name suggests, it's first and foremost a torch. Not just any torch, though: Coming from Celestron, this is designed with stargazers in mind, so it features a red light for preserving night vision. But as bonus features, you also get a 3550 mAh power bank and a hand warmer thrown in for good measure.

If you're solely after a power bank, this probably isn't the right choice for you. At 3,550 mAh, it's barely enough to charge your mobile phone to full, let alone a suite of equipment. That said, it's a handy amount of charge if you're caught off-guard. With the addition of the red flashlight and handwarmer, however? The Celestron ThermoTorch 3 Astro is practically an astronomer's best friend — and a very handy little tool to have in your equipment.

We particularly like that the hand warmer can be used simultaneously with the flashlight — handy when you're holding the light out in front of you. The hand warmer will provide around four hours of continuous heat on a full charge.

The internal battery charges within two hours, so it's ideal for some last-minute adventures. There is also a white LED version of this model, so make sure you choose the Astro version to get the red light capability. It has an IPX4 rating, which means it can be used on rainy nights —it's worth noting though that while it can withstand light water splashes, it obviously cannot be submerged.

Best compact device

Celestron PowerTank Glow 5000 Red Torch Power Bank

Best compact device: A 2-in-1 red LED flashlight meets 5000 mAh 5V DC power bank

Specifications

Capacity: 25 Wh/ 5000 mAh
Output ports: 1 x USB Type-A
Charging time: 0-3.5 hours
IP rating: IP65
Weight: 6.3 oz (179g)

Reasons to buy

+
Three levels of LED brightness
+
Multi-purpose device

Reasons to avoid

-
Not for seeing anything other than close-up
-
Quite expensive for what it is
Buy if:

✅ You like multiple functions: As well as a power bank, this device is a torch, minimizing how much stuff you need to carry around on adventures.

Don't buy if:

❌ You need to charge your devices multiple times: This is a low-capacity power bank, so don't rely on it for keeping several devices charged.

The bottom line:

🔎 Celestron PowerTank Glow 5000 Red Torch Power Bank: A great choice for someone who might occasionally have a use for the red light and small capacity power bank. It's quite expensive for what it is, but it would suit someone new to astronomy who doesn't want to invest in multiple accessories.

As we discussed in our best headlamps buying guide, using a red light as opposed to a white one is essential for maintaining your night vision. While we provide a number of hand-free lighting options in that guide, the fact that this small red LED torch also functions as a 5000mAh power bank makes it a fantastic gift for someone new to astronomy or astrophotography, and a useful bit of kit to keep in your bag.

The Celestron PowerTank Glow 5000 comes with a silicone mount strap so you can attach it somewhere useful, like your tripod. There's an extra wrist strap too, so you can keep it firmly attached to your person without the risk of losing it.

However, with only 5000mAh power, it's not the best power bank if you're hoping to charge multiple devices. It's enough to charge your phone once or twice, but you won't get much more out of it than that. That said, with the torch functionality, it's a great item to keep with your astro gear so you can charge something up in a pinch.

We'd recommend the Celestron PowerTank Glow 5000 power bank for a beginner astrophotographer or stargazer. It would make an excellent gift for someone just getting into the hobby who doesn't need a dedicated, high-powered power bank.

Best for multiple devices

Best for multiple devices: Massive capacity power bank encased in an aluminum shell with an informative OLED screen to boot

Specifications

Capacity: 96.48Wh 26800 mAh
Output ports: USB-C1 / C2: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A, 20V/5A, 100W Max; USB-C3 / C4: 5V/3A, 9V/2A, 12V/1.5A, 20W Max
Charging time: 105 minutes
IP rating: None
Weight: 1.25 lbs (565g)

Reasons to buy

+
Upgradable Firmware
+
Real-time OLED screen
+
138W max output

Reasons to avoid

-
On the heavy and bulky side
-
No USB-A ports
-
Fairly expensive
Buy if:

✅ You want to stay up-to-date: You can download the most recent firmware for this power bank, ensuring maximum performance in the future.

You want to see the nitty gritty: The real-time OLED screen shows you exactly what power is entering and leaving the device from each of the ports.

Don't buy if:

❌ You want something compact: This is a quite a large power bank, which isn't surprising given the capacity.

You use mostly USB-A charged devices: Though the SuperTank Pro does come with a USB-A to USB-C adapter, its four ports are geared toward USB-C users.

The bottom line:

🔎 Zendure SuperTank Pro 100W: A huge capacity powerbank that provides users with all the information about incoming and outgoing power on an OLED screen. It's carry-on compliant and durable thanks to its anodized aluminium casing.

Zendure is one of the fastest-growing EnergyTech start-ups and has a mission to make energy available and accessible.

The vast capacity Zendure SuperTank Pro 100W power bank is about as big as you can legally carry in your hand luggage on a flight. It is encased in anodized aluminum with ABS plastic which gives it a rugged but premium feel.

During our hands-on Zendure SuperTank Pro 100W review, we noted it can charge exceptionally fast, taking only 105 minutes in lab conditions. This makes it an ideal choice if you're looking for a quick solution before embarking on a spontaneous night of stargazing. We loved that thanks to a total output of 138W, you can power four devices simultaneously, so it could charge your smartphone, headtorch, star tracker, and lens warmer at the same time.

The built-in OLED screen of the SuperTank Pro is very helpful as it provides real-time information about the power you're currently using, and it'll also keep you informed on how much charge is left in the bank.

Annoyingly, however, there's no USB-A port on this power bank. It does have USB-C, but with many devices still requiring USB-A, it would have been a nice touch to be able to plug those in directly to the device. That said, Zendure does include a USB-A adapter, which can be stowed away in the storage case for safe keeping. 

Although this is an expensive power bank, if you need a lot of power on the go, it's perhaps the best choice on the market. And with firmware updates on the way, you have the peace of mind that the device will always stay up-to-date. Even better, it comes with a two-year warranty to cover you against any faults.

Unfortunately, the Zendure SuperTank Pro has recently been discontinued; so if you're interested in getting one, grab one before they sell out.

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Test Results
AttributesNotes
DesignAluminum casing, durable, looks like a small luggage case
FunctionalitySuper fast charging — less than one hour, charge four devices at once
PerformanceImpressive, can't fault it

Best Power Stations

Best home power station

Best home power station: Ideal for backup power at home, camping trips and storing solar energy

Specifications

Capacity: 2048Wh
Output ports: 5 AC ports, 2 USB-C ports, 4 USB-A ports, 1 car charger port, 2 DC output ports, 1 AV port
Charging time: 80% charge in 53 mins
IP rating: None
Weight: 50.7 lbs (23 kg)

Reasons to buy

+
Cable storage compartment
+
Expandable with up to seven batteries
+
Very fast to charge from 0-100%

Reasons to avoid

-
Covers for outlets not sturdy
-
A heavy power station
Buy if:

✅ You want backup power at home: This power station has plenty of power.

You're planning on a long camping trip: The device can store solar power and will ensure you're fully equipped in the great outdoors.

You want a fast-charging power station: This power station can reach 80% in under an hour.

Don't buy if:

❌ You want to a portable power station: At 50 lbs, this power station isn't the most travel-friendly. 

The bottom line:

🔎 Oukitel BP2000: This smart-looking and functional power station will keep your home up and running in a power outage while also giving you a great power source on long trips. It charges up super quickly, and you can expand its storage capacity with up to seven additional batteries.

The Oukitel BP2000 is a high-capacity power station with some neat design features that make it highly practical and functional. It contains a 640,000 mAh LiFePO4 battery with 3,500 Life Cycles and up to a 10-year lifespan. You can also expand that amount with up to seven extra batteries and use solar panels to charge up from the sunlight during your camping trips.  

It's very heavy at 50 lbs (23kg) and we think it would have benefitted from some added wheels, but it does come with integrated handles on either side to help you move it around. We also loved the fact that it features inbuilt compartments to store all your cables in — it's a little thing, but it makes a big difference in making sure you don't forget or mislay them during your travels.  

In our Oukitel BP2000 review, we were incredibly impressed by how fast this power station charges. We were able to charge it from 0-100% in just 90 minutes, meaning it's can charge over 1% a minute. As a note, the six cooling fans do kick in when it's charging and create a low humming sound, so you may not want to keep it running overnight if you're sleeping in the same room. 

Oukitel haven't provided an app like some of their competitors, but with the comprehensive LCD screen, we can't say that we missed it. The screen offers 23 different display icons, so you can easily keep track of things like the input, output and power status. 

We think this power station would be ideal for home power backup, particularly as it has a speedy Uninterruptible Power Supply (UPS) that kicks in only 10 milliseconds after a power outage. It also comes with a three-year warranty for added peace of mind. 

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Test Results
AttributesNotes
DesignIntegrated carry handles and a smart cable management system underlines excellent design
FunctionalityExpandable capacity with up to seven expansion batteries
PerformanceIt's really quick to charge to 80% and the LCD screen data is accurate

Best compact power station

Best compact power station: We love this power bank because of its compact size and portability

Specifications

Capacity: 1024Wh
Output ports: 2 AC ports, 2 USB-C ports, 2 USB-A ports, 1 car charger port, 2 DC output ports
Charging time: 50 minutes
IP rating: None
Weight: 24.5 lbs (11.5 kg)

Reasons to buy

+
Great compact size
+
Five-year warranty
+
Quiet operation

Reasons to avoid

-
Fairly expensive
-
LED indicators a little small
Buy if:

✅ You're looking for a happy medium between size, weight and capacity: We think it strikes the perfect balance.

You're planning on going off-grid: With solar-panel charging and a 0% Battery Emergency Mode, you will have power for any eventuality.

You want something that charges incredibly quickly: It charges to full capacity in less than an hour using AC, so it's ideal for last-minute getaways.

Don't buy if:

❌ You want to store or stack things on top of it: Having the handle at the top means you can't stack anything on top of it. 

The bottom line:

🔎 Ugreen Power Roam 1200: This has quickly become our go-to power station. We think it strikes the perfect balance between size and capacity, and it's incredibly fast to charge. It's quieter than other models we have tested too, and the app is slick and responsive.

We were really impressed with this power station and think it offers a great balance between size and capacity. It's about half the weight of the Zendure SuperBase Pro (see below) and is easy to carry around thanks to its secure integrated handle.

It has a minimalistic and practical look with a simple and intuitive design. In our Ugreen Power Roam 1200 review, we found it easy to get to grips with even without reading the instructions, and also found it incredibly fast to charge. On AC it went from 0% to 80% in less than the 50 minutes it claims, and it was relatively fast to charge with solar panels too — ideal for charging up at your campsite during the day when it's sunny.

The Ugreen Power Roam 1200 has four buttons and an LCD screen that provides details such as the remaining battery percentage, input/output levels and remaining charge and discharge times. You can also see all of this information on your phone on the Ugreen app, which lets you operate all of the power station's features remotely. 

There are some very nifty features on this power station. We love that it's equipped with Uninterrupted Power Supply (UPS), which makes it an ideal back-up power supply in your home if you experience frequent power outages. It can also be used as a flashlight to keep your camp or tent lit up at night. 

Perhaps our favorite feature is the built-in 0% Battery Emergency Mode, which means even when the battery display shows 0% it has another seven hours of light and smartphone charge — a life-saving feature in certain situations.

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Test Results
AttributesNotes
DesignNeat and compact, easily portable. AC outlets are on one end, USB outlets are on the front, built in handle
FunctionalityImpressive app connectivity and control, emergency mode, equipped with uninterrupted power supply
PerformanceQuiet fans, charges in less than one hour using AC

Best power station for max capacity

Best power station for max capacity: This power station will keep all of your devices charged for days

Specifications

Capacity: 2096Wh
Output ports: 6 AC ports, 2 USB-C ports, 1 car charger port, 3 DC output ports
Charging time: To 80% (recommended) in 1 hour
IP rating: None
Weight: 46.5 lbs (21.2kg)

Reasons to buy

+
Perfect for multi-day trips
+
Handy handle and wheels
+
Can be used as an emergency power source

Reasons to avoid

-
Very expensive
-
Heavy
-
No USB-A port
Buy if:

✅ You're spending nights off the grid:  Depending on your energy consumption, the Zendure SuperBase Pro 2000 should keep you powered up for days. If you have solar panels and it's sunny, you'll benefit from unlimited power.

You'll be taking it to festivals: It features a telescopic handle and large industrial-grade wheels. Simply pack your kit on top of it and drag it along.

Don't buy if:

❌ You need something quiet: When charging or distributing a lot of power, the fans are very loud. We wouldn't recommend sleeping in the same room/van as it when it's in use.

The bottom line:

🔎 Zendure SuperBase Pro: An excellent power station for getting from A to B. While it is big and heavy, the telescopic handles and chunky wheels make it very easy to maneuver. It is also an excellent emergency power supply for when there are power cuts.

This 47lb power station is a serious piece of equipment with a luggage-inspired design: It has a telescopic and fixed handle mounted on industrial-grade wheels. The Zendure SuperBase Pro 2000 has 2096Wh Capacity with 2,000W Output, and can be boosted to power up devices that typically need 3000W using the AmpUp feature.

While it's obvious that you can't just throw it in your backpack and hike to a dark sky area, it makes the perfect travel companion for extended off-grid skywatching and camping trips.

This monster can even power an electric car enough to travel five miles, so you won't have any trouble charging your devices for several days, including laptops, video equipment, drones, mini-fridges, and heaters. 

The Zendure SuperBase Pro 2000's body is reinforced with a shock-resistant shell and has a reinforced interior. It's not as all-weather reliable as some smaller power banks though: Its optimum operating temperature is between 59°F to 95 °F (15°C to 35°C). It will still work between -4°F to 104°F (-20°C to 40°C), but expect it to drain quicker. It won't accept a charge below freezing and, unsurprisingly, you can't get it wet.

If not for astronomy and astrophotography, this can be used as an emergency backup power source in your home. Like the rucksack-friendly SuperTank Pro 100W, this product comes with a Zendure two-year limited warranty.

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Test Results
AttributesNotes
DesignUnique telescopic handle and chunky wheels
Functionality14 outputs — charge everything you need at once
PerformanceFans are very loud but it's exceptionally quick to recharge

Best for emergency power

Huge capacity for off-grid living or use it as an emergency power supply

Specifications

Capacity: 2048Wh
Output ports: 2 USB-C ports, 4 USB- A ports, 4 AC ports, 2 DC ports
Charging time: 80% charge in 53 mins
IP rating: None
Weight: 50.7 lbs (23kg)

Reasons to buy

+
Fast charge
+
Slick app
+
Extendable Capacity

Reasons to avoid

-
Very heavy
-
No wheels
Buy if:

✅ It's going to be staying put for long periods of time: This isn't a very travel-friendly power station. It's large and heavy, but would make the perfect emergency power backup.

You want to expand the capacity: If you find yourself needing to store more power, you can add up to two DELTA 2 Max Smart batteries. Store up to a whopping 6144Wh.

Don't buy if:

❌ You will be moving it often:  It weighs 50.7lb/23kg, is pretty cumbersome, and doesn't have the luxury of wheels.

The bottom line:

🔎 EcoFlow DELTA 2 Max: Ideal as a backup power solution. If it's going to be staying put in your home or van, it's a great buy that will keep you powered up for days; we actually struggled to drain it during our tests.

This is a huge-capacity power station with fast charging and a reassuring five-year warranty. While it generally retails for less than the Zendure SuperBase Pro, you'll have to compromise on weight and portability with this model.

In our EcoFlow DELTA 2 Max review, we found this power station pretty heavy to move around, even with its integrated handles, and it took up a lot of space in the trunk of the car. We feel it would benefit from having wheels like the Zendure does, but we did appreciate having the handles on the side since it made it easy to stack things on top of it. Although not an official use, it also provided a handy extra seat or table to put our laptop on when camping out.

During our testing, we found it didn't charge quite as fast as it claimed to, adding 50% to the battery in around 40 minutes on AC. That said, we were hard pressed to drain this thing of power once it was full, so we find it easy to believe the claims that it will charge your camera 99 times, a drone 39 times or a laptop 26 times over. It can also be expanded with two extra batteries should you need it.

The app is slick, responsive and easy to set up. It shows you exactly how much power is entering and leaving the power station in real time and you can also customize all your settings in it.

If you're planning on carrying your power station around a lot, then this 50.7 lb beast might not be the one for you. But we think it would make an excellent source of backup power for your home or to keep in a campervan or car while you're away.

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Test Results
AttributesNotes
DesignLarge and menacing, flat top is useful
FunctionalityCan be extended to store extra power, its very heavy for transporting around
PerformanceVery quick to charge, huge capacity

Best power banks in 2024: What to look for

With the sheer number of power banks available out there, finding the right one for you can be overwhelming. We've summarized our advice to help you find the perfect power bank below. 

The first thing you'll need to consider is your budget. The price of power banks can vary widely, with some budget models costing a few dollars and some more premium ones that will set you back over a hundred bucks. Luckily, though, you don't need to spend loads of money to find a reliable piece of kit. We've included devices for every budget in our guide above. 

Another important factor when choosing a power bank is its capacity. The capacity of batteries is indicated as XXXX mAh (milliampere/hour). The higher the number, the bigger the capacity — the more power you can draw from it. We've included the capacity of each power bank in this guide so you can easily refer to this measurement. 

Usually, power banks with a higher mAh are bigger and bulkier devices. So if you're often on the go and are looking to travel light, it's important to find a good balance dependent on your needs. There are really compact models available to purchase, including some you can attach to your keyring, which we've included in the guide. 

Some of the more premium power banks will come with extra features such as a torch or a hand warmer. While these aren't essential to the smooth running of your night time escapades, they may come in handy and can be worth splashing out if you have the budget. 

NB — If you're going to be traveling on a plane with your power bank and plan to have it in your hand luggage, it must not exceed the 100Wh (27, 000mAh) limit set by the Federal Aviation Administration.

All of the power banks listed here have been selected as being good value-for-money with features that are especially helpful to astronomers and astrophotographers above anything else. We will review and update this guide often and keep an eye out for discounts and deals to help you save money.

Best power banks Frequently Asked Questions

What is the best power bank?

We think the Zendure SuperTank Pro 100W is the best power bank overall, which is why we gave it full marks in our full review. It has upgradeable firmware, a 138W output and a real-time OLED screen with current charging readouts and information.

That said, this power bank is being discontinued so you may struggle to find it. If you can't, the BioLite Charge PD series power bank is a fantastic contender, shining through its portability and sleek design.

What is the best power station?

The Ugreen Power Roam 1200 is the best compact power station we tested and reviewed. We gave it four and a half stars out of five in our review due to its compact size, five-year warranty and its quiet operation. If you're looking for a power station for your home, however, you can't go wrong with the Oukitel BP2000.

Power bank vs power station: What's the difference?

The difference between a power bank and a power station lies in their size and portability. Every bank and station on this list is portable, to a degree, but what you should choose depends on your intended use for them.

Power banks can easily slip into jacket pockets or a carry bag or be left in the glove box of a vehicle for quick charging when needed. Power stations, on the other hand, are much larger, heavier and are better suited to skywatching gatherings where users are staying put for a length of time.

How much capacity do I need from my power bank?

This all depends on its intended charge device/s. A computerized telescope, smartphone and laptop will likely require a power station with a larger battery capacity to power it overnight or for several nights.

Using a manual telescope, camera and phone users can use a power bank which is smaller and lighter.

How we test the best power banks for skywatchers and astrophotographers

To guarantee you're getting honest, up-to-date recommendations on the best power banks to buy, here at Space.com, we make sure to put every power bank through a rigorous review to test each device thoroughly. Each power bank is reviewed based on many aspects, from its construction and design, to how well it functions as a power bank and its performance in the field.

Each power bank is carefully tested by either our expert staff or knowledgeable freelance contributors who know their subject areas in depth. This ensures fair reviewing is backed by personal, hands-on experience with each power bank and is judged based on its price point, class and destined use.

We look at how much capacity each power bank has, how quickly it charges, whether it includes a built-in flashlight, whether there's a red light option for night vision protection, and whether they have in-built hand warming capabilities.

With complete editorial independence, Space.com are here to ensure you get the best buying advice on power banks, whether you should purchase a device or not, making our buying guides and reviews reliable and transparent.

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.

Tantse Walter
Contributing Writer

Tantse Walter is a photographer and adventurer that's spent seven years facilitating global adventurous expeditions. She loves getting into the nitty-gritty of sourcing and planning trips. Whether that be for astrophotography location scouting, or just for the love of exploration. Tantse enjoys taking creative, bright and bold photos of people, places, animals and the night sky. Tantse’s photos have been purchased by notable companies such as Ford and Cross Country Trains as well as an upcoming book about the songs, rituals and musical history of Capoeira.

With contributions from