Running out of juice when the phone is at 5% is a stressful experience. Luckily, testing portable batteries is part of the job, so usually, there are options. The real challenge is remembering to bring one along.
Over the past 1.5 years, we’ve tested over a dozen power banks to see which ones stand out in different scenarios – whether it’s a top-up for an iPhone or a full battery for a laptop in the field. Travelers and forgetful people will love having extra power in their hands. However, not all power banks deliver, so you need to choose one with a high capacity – at least 20,000mAh – to handle laptop batteries.
Best Power Bank for iPhones
Anker MagGo Power Bank (10K)
Capacity: 10,000mAh, 15W
Ports: One USB-C in/out
Included Cable: USB-C to USB-C
Number of Charges for iPhone 15: 1.64
Charge Time for iPhone: 2h 26m to 100%; 1h 8m to 70%
Review
The Anker MagGo Power Bank is one of the best Anker power banks for iPhones and one of the first Qi2 products on the market. That technology has made a big difference in this MagSafe/kickstand model, so it’s the top choice for iPhone users.
Performance
The MagGo brought an iPhone 15 from 0 to 50% in about 45 minutes. The previous top model in this category took 1.5 hours to get to 50%. The MagGo 10K even outperformed Anker’s previous gen 633.
Features
In addition to fast charging, this power bank has an LCD that shows the remaining battery percentage and estimated time to full charge or depletion while charging a device. The strong MagSafe connection lets you use your phone while it charges, and the built-in kickstand is surprisingly stable for watching videos. If your phone is in landscape mode, StandBy mode kicks in and is more usable.
Compatibility
MagGo worked well with our Galaxy S23 Ultra, but since it doesn’t have Qi2 support, popular Android devices will charge slower without magnetic alignment. The power bank has a USB-C port for recharging devices that don’t support wireless charging.
Pros
Qi2 technology for fast wireless charging
Kickstand for propping up iPhones while charging
LED display for battery percentage
Cons
More expensive than other MagSafe options
Best Portable Charger for Android
Anker Nano Battery (Foldable USB-C)
Capacity: 5,000mAh, 22.5W max
Ports: One USB-C and one built-in USB-C connector
Cable: USB-C to USB-C
Number of Charges for Galaxy S23 Ultra: 0.65
Charge Time: 1h 2m to 65%
Review
The Anker Nano Battery is a great portable charger that packs a lot of power in a tiny package, like other Anker power banks are known for. It’s about the size of a lipstick case, so it’s super easy to carry around. The built-in USB-C connector folds away when not in use, so you don’t have to remember a separate charging cable.
Design and Features
In addition to the foldable connector, the Anker Nano has a dedicated USB-C port for charging the battery or another device with an adapter cable. Four lights indicate the remaining charge, so you always know the power bank’s status.
Performance
The 5,000mAh battery charged a dead Galaxy S23 Ultra to 65% in 1h 2m. Its fast charging and small size mean you can use your phone while charging, and it’s comfortable. It’s also great for recharging smaller devices like earbuds.
Other Option
If you need more power, Anker’s 30W Nano Power Bank is a good alternative. It has a 10,000mAh capacity and a display for the remaining charge percentage. The built-in USB-C cable also has a carry handle, so it’s even more convenient. It has a USB-C in/out port and an additional out-only USB-A port, so there are more charging options.
Pros
Tiny and portable
Cheap
Cons
Small size can be lost
Best Low Capacity Power Bank
Anker 10K Fusion
Capacity: 10,000mAh, 30W max
Ports: One USB-C in/out port, one built-in USB-C in/out cable, wall prongs
Cable: Built-in USB-C
Number of Charges for iPhone 15: 1.86
Charge Time for iPhone: 1h 53m to 100%; 1h 5m to 91%
Number of Charges for Galaxy S23 Ultra: 1.45
Charge Time for Galaxy: 1h 2m to 100%; 23m to 50%
Review
The Anker 10K Fusion power bank solves the portability problem with an attached USB-C cable and a foldable two-prong plug. There is no need to carry extra cables or a wall adapter, so it’s great for on-the-go users.
Design and Features
Despite being slightly wider than a stick of butter, the Anker 10K Fusion is a 10,000mAh power bank. The built-in USB-C cable makes it easy to connect to devices, and the wall prongs make it easy to recharge the power bank itself. The cable can be stored away, so it looks like a handle, but please don’t carry it alone by cord.
Performance
30W power means it supports “Super Fast Charging” for compatible devices. It can charge a Galaxy S23 from 5% to 100% in 1h 2m. For the iPhone 15, it can charge from 0% to 45% in 20m, and the charging speed slows down as it approaches 100%.
There is an additional USB-C port to charge other devices that require different cables. The display shows the remaining charge percentage, so you always know the status at a glance. The corduroy texture on the sides is a nice touch.
Other Option
If you’re looking for alternatives, the BioLite Charge 40 PD is still a good option. It’s durable and stylish and has quick charging. BioLite’s mission to provide energy to underserved areas is a bonus. But the Anker 10K Fusion beats it with faster charging and more features at a lower price.
Pros
Built-in USB-C cable
Built-in wall prongs, so there is no need for extra adapters
The display shows the remaining charge percentage
Cheap
Cons
The charging speed for iPhones is slower compared to other power banks in its class.
Best Power Bank for Multiple Devices
Lion Energy Eclipse Mag
Capacity: 27,000mAh, 85W max
Ports: One in/out USB-C, two out-only USB-A, three wireless charging pads
Cable: USB-C to USB-C
Number of Charges for iPhone 15: 5.67
Charge Time for iPhone: 2h 22m to 100%; 35m to 68%
Number of Charges for Galaxy S23 Ultra: 4.46
Charge Time for Galaxy: 1h 21m to 100%; 25m to 46%
Number of Charges for iPad Air: 2.78
Charge Time for iPad: 1h 55m to 100%; 1h 11m to 78%
Number of Charges for MacBook Pro: 0.79
Charge Time for MacBook Pro: 1h 18m to 89%
Review
The Lion Energy Eclipse Mag is a power bank that can efficiently charge laptops and smaller devices. With a 27,000mAh capacity, it’s perfect for users who need to charge multiple devices during travel or long work sessions.
Design and Features
One of the standout features is the three wireless charging pads on top, which allow users to charge compatible devices wirelessly. But the Eclipse Mag shines in wired performance. It’s reliable and efficient. It’s also TSA-compliant (100wh), so it’s good for air travel. At 2 pounds and 8.5 inches long, it’s a bit bulky compared to others.
The soft-touch plastic exterior, especially around the corners, makes it more durable, but no drop ratings are provided. The recharge time from the wall outlet is 90 minutes, which is in line with the manufacturer’s claim.
Performance
The Eclipse Mag can charge an iPhone 15 up to 5.67 times and Galaxy S23 Ultra up to 4.46 times. It can power a 16-inch MacBook Pro from 10% to 89% while in use.
The power bank supports pass-through charging and can charge from a wall outlet while charging connected devices. Double-press the status button to activate wireless charging for multiple devices. For iPhones, magnetic alignment with MagSafe is quick and easy. For Galaxy devices, you need to adjust slightly for optimal alignment.
Despite its good performance, wireless charging speed slows down as devices approach full capacity, which is common with portable wireless chargers.
Compatibility
Lion Energy says the Eclipse Mag is designed for Apple Watches, so wireless charging is seamless. Other devices like Pixel Watch 2, which doesn’t support wireless charging, won’t benefit from this feature. But connecting an Apple Watch is easy and works well.
Price
At $149, the Lion Energy Eclipse Mag is cheap, considering its capacity and wireless charging. There is only one USB-C port, but three wireless pads make up for it. This power bank is good for long trips or days away from an outlet and is perfect for professionals and travelers.
Pros
24,000mAh battery capacity for heavy use
Fast wired charge
Good wireless charging
Cons
Big and heavy, not portable
Only one USB-C port
Laptop Power Bank for Laptops
Mophie Powerstation Pro AC (2023)
Capacity: 27,000mAh, 140W max
Ports: One USB-C in/out, one USB-C out, one USB-A, one 100W AC
Cable: USB-C to USB-C
Number of Charges for iPhone 11: 3.75
Charge Time for iPhone: 1h 40m to 100%; 46m to 75%
Number of Charges for iPad Air: 2.15
Charge Time for iPad: 1h 56m to 100%; 19m to 15%
Number of Charges for 16 MacBook Pro: 0.65
Charge Time for MacBook Pro: 1h 29m to 75%
Overview
The Mophie Powerstation Pro AC is one of the biggest portable power banks out there. It is designed for users who travel with laptops and other mobile devices. Its 27,000mAh capacity is TSA-compliant, so it’s good for air travel. The robust design has a grab handle for easy carry.
Ports and Performance
With four ports, three USB ports, and one three-prong AC outlet, the Powerstation Pro AC can power multiple devices. This is useful for older devices and accessories that require a standard wall plug. To activate the AC port, press and hold the status button until the light turns red.
The AC outlet can power small appliances like speakers, printers, and LED lights. 100W from the AC outlet is not enough to charge a 16-inch MacBook Pro with a 140W adapter continuously, but it can charge significantly via the USB-C port. For example, it charged the MacBook Pro from 10% to 75% in under 90 minutes, perfect for users on the go.
Charging Indicators and Battery Life
The Powerstation Pro AC has four LED indicators for the battery status. However, the battery life indicator is not the most reliable, showing a full charge until it quickly drains to empty. So, users might find it more practical to monitor their usage rather than rely on indicators.
This power bank can charge multiple devices at once. For example, it charged an iPhone 11 nearly five times and an iPad Air twice. It also outperformed some previous models in terms of charging speed, so it’s good for mobile devices and larger electronics.
Comparison with Similar Products
A similar product is the Lion Energy Trek power bank, which has the same 27,000mAh capacity and three USB ports plus an AC outlet. However, the Trek has a more rugged design and an LED screen that shows outgoing wattage and remaining charge. Although it has similar charging times and capacity, the Trek is cheaper but only has one USB-C port. Note that its charge indicator is not reliable, so users should consider their needs when choosing between the two.
Price
2.6 pounds, the Mophie Powerstation Pro AC is heavy but for those who need a lot of power for multiple devices. It’s cheaper than most power banks, but its capacity and AC outlet justify it.
Pros
Big capacity for multiple devices with a month’s warranty
AC outlet for extra versatility
Cons
Expensive
Heavy
Premium Power Bank
Anker Prime Power Bank
Capacity: 20,000mAh, 200W max
Ports: Two USB-C in/out, one USB-A, charging pins
Cable: USB-C to USB-C
Charges for iPhone 11: 3.75
Charge Time for iPhone: 0 to 100% in 1h 48m average; 75% in 47m
Charges for iPad Air: 1.54
Charge Time for iPad: 0 to 100% in 2h 11m; 54% in 47m
Review
This power bank is a stylish and functional option for those who want to invest in a high-quality portable charger. With a 20,000mAh capacity, it combines design and features, perfect for premium users.
Charging Base
One of the coolest features of the Prime Power Bank is its compatibility with a charging base, which costs around $200 for the set. The base has a magnetic alignment, so you don’t need to plug in cables. It also has one USB-A and two USB-C ports, so it’s a power hub for other devices. That’s why it’s premium-priced.
Design and Display
The power bank has a blocky and upright design with a textured metallic plastic casing and rounded corners, perfect for charging everyday devices like smartphones. The high-polished finish is nice but may scratch with regular use. Anker has a built-in display that shows the wattage going to each device and the overall remaining charge so users can see real-time power usage. The screen may slow down the battery’s response time, but it doesn’t affect performance or charging efficiency.
Performance
The Anker Prime Power Bank performs well. Its charging times and capacity are on par with other high-capacity power banks. For example, it charged an iPhone 11 from 0 to 100% in under 2 hours, a good option for heavy users. It can charge multiple devices at the same time, so it’s good for everyday use and travel.
Comparison with Other Models
Anker’s Prime series is the successor of the Powercore series; it has different sizes, including 27,560mAh, which uses the same base and is featured in other power bank reviews. If you want more capacity, you can consider this option, but note that 20,000mAh is a good balance between portability and power.
Pros
Magnetic base charging
Sleek design for portability
Charge indicator display
Cons
Expensive when with a charging base
The shiny surface may scratch
Best Power Bank for Outdoors
Nestout 15,000mAh Outdoor Battery Power Bank
Capacity: 15,000mAh, 32W max
Ports: One USB-C in/out, one USB-C in, one USB-A
Cable: USB-A to USB-C
Charges for iPhone 11: 2.99
Charge Time for iPhone 11: 0 to 100% in 2 hours (average); 0 to 99% in 1h 45m
Charges for iPad Air: 1.17
Charge Time for iPad: 0 to 100% in 2h 23m; 0 to 17% in 15m
Overview
The Nestout Outdoor Battery Power Bank is for adventurous users who need a rugged and reliable power source in rough conditions. With an IP67 rating, this power bank can withstand water and even brief submersion, making it perfect for outdoor activities like hiking, camping, or fishing.
Water and Shock Resistance
Nestout’s power bank is built to last. Its IP67 rating means it can be submerged in water for a limited time without damage. The manufacturer claims it can survive a 30-minute dunk in a meter of water, so it’s good for unexpected rain or crossing shallow rivers. To ensure water resistance, the battery has screw-on caps with silicone gaskets, which must be tightened securely to maintain protection.
Also, the power bank meets military standard shock/drop specifications, so it can withstand outdoor use. In testing, it survived multiple drops from chest height onto hard surfaces without any issues, so it’s a good companion for rough environments.
Charging Performance
The Nestout performs well when charging but is not the fastest. For example, it charged an iPhone 11 to 80% in about one hour, which is decent but not as fast as some other competitors like Otterbox. The included 7-inch USB-A to USB-C cable is short, so you may want to bring your own longer cable for convenience.
Accessories
You can purchase Nestout’s accessories at any U.S. store or ship to a U.S. address. A dimmable LED work light and a small tripod can be attached to the top of the battery for stability. A portable solar panel can charge the 15,000mAh battery to 40% in 3 hours. That may not sound fast, but it’s impressive for the size of the solar panel.
Pros
Waterproof with screw-on caps
Clever accessories available (separately)
Survived drop tests
Cons
Not the fastest charging
The included cable is short
Honorable Mention: Battery Pack Case
Mophie Juice Pack for iPhone 15
The Mophie Juice Pack for iPhone 15 is a simple and slim solution for those needing an extra battery life without carrying a separate power bank. It’s not the first battery case, but it’s definitely one of the best.
Design and Usability
The Juice Pack has a unique split design, so it’s easy to install on the iPhone 15. Once attached, the case feels secure and provides protection for the phone without adding too much bulk. It does make the phone a bit longer at the bottom and thicker at the back, but it’s still discreet enough that most users won’t even notice it’s a battery case.
To turn on the charging function, press the button at the back for 2 seconds, then press for 1 second to check the battery level. During testing, the case charged the iPhone from 10% to 65% in about 1h 45m. This is not the fastest charging speed compared to a standalone power bank, but it’s nice to have a few extra hours when you need them most.
Cons
No Wireless Charging: The case blocks wireless charging. When you need to charge the case, a USB-C cable connects to the bottom and charges the phone first, then the case.
Limited Compatibility: This battery case is only for iPhone 15 series, so it won’t work with other devices. That may be a con for those who have multiple devices.
Aesthetic Con: The Juice Pack is only black. Not for those who want more customization.
Pros
Sleek design with easy installation
Provides extra hours of battery life
Secure fit and protection for the iPhone