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This guide is for anyone whose phone dies by teatime, on the commute, at a festival or on holiday. It's also for anyone hunting for a practical Christmas present. Match the bank to what you charge. Check capacity (mAh, the size of the battery), power (watts, or W, which sets how fast it charges) and how many devices it can fill at once.
Anker Zolo Power Bank 20,000mAh 45W (dual built-in USB-C cables)
Best for most people
A 20,000mAh power bank with two USB-C cables built in, so you never hunt for a lead. It keeps a phone going all weekend.
Who it's for: Buy it for anyone who charges a phone, earbuds and more on the go and wants one bank that does it all.
The facts that matter
- 20,000mAh provides 4 full charges for an iPhone 16.
- Two built-in USB-C cables, tested to last over 10,000 bends, plus a USB-C port and a USB-A port to charge 4 devices at once.
- 45W charging, with 45W fast charging for compatible Samsung Galaxy phones from the USB-C port.
Why it made the list: You get 4 full charges for an iPhone 16 and 4 devices charging at once: two built-in cables, plus a USB-C port and a USB-A port (the older, rectangular plug). Anker says the cables have been tested to last over 10,000 bends. Samsung Galaxy owners get 45W fast charging from the USB-C port on compatible phones.
Worth knowing: It weighs 12.85 oz (about 364 g), so it is a bag power bank rather than a pocket one.
Check price on Amazon(paid link)Anker Nano Power Bank 10,000mAh 45W (built-in retractable cable)
Best for the pocket
A compact 10,000mAh bank with a retractable USB-C cable built in. It gives you a fast top-up from a pocket, with no loose wires.
Who it's for: Perfect for commuters and anyone who hates carrying a bag.
The facts that matter
- 81.5 x 50.5 x 36.1 mm and 232 g, with a built-in retractable USB-C cable rated for over 20,000 bends.
- 45W max output from a single USB-C port charges an iPhone 16 Pro to 50% in 27 minutes, and a 30W input refills the bank.
- A smart display, pass-through charging and a 24-month warranty.
Why it made the list: At 81.5 x 50.5 x 36.1 mm and 232 g, it slips into a pocket, and the cable is rated for over 20,000 bends. Its 45W USB-C port charges an iPhone 16 Pro to 50% in 27 minutes. A smart display shows what's happening, pass-through charging lets you charge the bank and a device at the same time, and it comes with a 24-month warranty.
Worth knowing: 10,000mAh, half the capacity of the 20,000mAh picks, in exchange for the pocket size.
Check price on Amazon(paid link)Anker MagGo Power Bank 10,000mAh (Qi2, 15W)
Best for iPhone, snapped on
A slim magnetic power bank that clicks onto the back of your iPhone and charges it wirelessly. Just snap it on and keep scrolling.
Who it's for: Ideal for iPhone owners who want to charge without a cable dangling.
The facts that matter
- 15W Qi2-certified magnetic wireless charging takes an iPhone 15 Pro from 0 to 50% in 41 minutes.
- 104 × 70.6 × 14.7 mm, Anker's slimmest design to date, with a 30W USB-C port.
- 1.8 full charges for an iPhone 15 Pro, in a metal frame with aerogel insulation to keep it cool to the touch.
Why it made the list: It uses 15W Qi2-certified magnetic wireless charging, which takes an iPhone 15 Pro from 0 to 50% in 41 minutes. At 104 × 70.6 × 14.7 mm, it's Anker's slimmest design to date, and it has a 30W USB-C port when you want more speed. It gives 1.8 full charges for an iPhone 15 Pro, in a metal frame with aerogel insulation that Anker says keeps it cool to the touch.
Worth knowing: Wireless charging is 15W; the faster 30W is from the USB-C port.
Check price on Amazon(paid link)UGREEN Nexode 10,000mAh MagSafe-compatible wireless power bank
Best for a soft-touch magnetic bank
A 10,000mAh magnetic wireless power bank for iPhone, with a soft silicone finish. It sticks on firmly and charges as you go.
Who it's for: A lovely gift for an iPhone owner who babies the back of their phone.
The facts that matter
- Magnets hold it firmly to the back of an iPhone, and it fully charges an iPhone 15 up to 1.9 times.
- A soft silicone finish that helps protect the back of your phone, at 222 g.
- Charges 2 devices at once, wireless and wired, with up to 20W from the USB-C port.
Why it made the list: Magnets hold it firmly to the back of an iPhone, and it fully charges an iPhone 15 up to 1.9 times. The soft silicone finish helps protect the back of your phone, and it weighs 222 g. It charges 2 devices at once, one wireless and one wired, with up to 20W from the USB-C port.
Worth knowing: USB-C fast charging tops out at 20W.
Check price on Amazon(paid link)Anker Power Bank 25,000mAh 165W (built-in and retractable cables)
Best for a laptop plus everything else
A 25,000mAh bank with serious power for a laptop, plus built-in cables for everything else. One bank covers the whole bag.
Who it's for: Made for remote workers and students who work on the train.
The facts that matter
- Three USB-C ports each deliver up to 100W, so it can power a MacBook and other devices at the same time.
- Charges 4 devices at once with two built-in USB-C cables (one retractable), a USB-A port and a USB-C port.
- 25,000mAh, and 100W recharging fills the bank to 30% in 20 minutes.
Why it made the list: Three USB-C ports each deliver up to 100W, so it can power a MacBook and other devices at the same time. It charges 4 devices at once with two built-in USB-C cables (one retractable), a USB-A port and a USB-C port. It refills fast too, with 100W recharging taking the bank to 30% in 20 minutes.
Worth knowing: An 18-month warranty, against 24 months on the Anker Nano.
Check price on Amazon(paid link)UGREEN Nexode 25,000mAh 140W power bank
Best for a big laptop
A 25,000mAh power bank with up to 140W from one USB-C port. That's enough to charge a large laptop away from the plug.
Who it's for: Buy it for a MacBook Pro 16" owner who works from anywhere.
The facts that matter
- Up to 140W from one USB-C port (65W from the second), and it can fully charge a MacBook Pro 16" up to 1.3 times.
- 25,000mAh charges an iPhone 15 up to 5.2 times and a Galaxy S23 Ultra up to 3.6 times.
- A 65W adapter fully recharges it in 2 hours, and UGREEN calls it airplane-friendly.
Why it made the list: It delivers up to 140W from one USB-C port (65W from the second) and can fully charge a MacBook Pro 16" up to 1.3 times. It also charges an iPhone 15 up to 5.2 times and a Galaxy S23 Ultra up to 3.6 times. A 65W adapter fully recharges it in 2 hours, and UGREEN calls it airplane-friendly.
Worth knowing: It weighs 513 g, so it travels in a bag, not a pocket.
Check price on Amazon(paid link)INIU Power Bank 25,000mAh 100W
Best for laptops and Steam Deck
A 25,000mAh bank with up to 100W from USB-C for laptops and handheld consoles. Keep gaming or working far from a socket.
Who it's for: Ideal for a Steam Deck gamer or a laptop user on long journeys.
The facts that matter
- Up to 100W from the USB-C port for laptops, and full-speed charging for a Steam Deck.
- The USB-C In & Out port also recharges the bank at up to 65W.
- Two USB-C outputs for phones, tablets, laptops and other USB-C devices.
Why it made the list: You get up to 100W from the USB-C port for laptops and full-speed charging for a Steam Deck. That same USB-C In & Out port also recharges the bank at up to 65W. Two USB-C outputs handle phones, tablets, laptops and other USB-C devices.
Worth knowing: The full 100W comes from the USB-C In & Out port.
Check price on Amazon(paid link)UGREEN Nexode 20,000mAh 45W power bank (built-in cable)
Best for Samsung Galaxy phones
A 20,000mAh bank with a built-in USB-C cable and Super Fast Charging 2.0. It gets a Galaxy back in action fast.
Who it's for: The one to buy for a Samsung Galaxy fan.
The facts that matter
- 45W from the built-in cable or USB-C port charges a Galaxy S25 Ultra to 61% in 30 minutes, with Super Fast Charging 2.0.
- 20,000mAh gives 3 full charges for a Galaxy S25 Ultra or 4.2 for an iPhone 16.
- The built-in USB-C cable doubles as a lanyard, and an LED screen shows the battery level; it charges 3 devices at once.
Why it made the list: Its 45W output, from the built-in cable or the USB-C port, charges a Galaxy S25 Ultra to 61% in 30 minutes. It gives 3 full charges for a Galaxy S25 Ultra or 4.2 for an iPhone 16. The built-in cable doubles as a lanyard, an LED screen shows the battery level, and it charges 3 devices at once.
Worth knowing: Three outputs, one fewer than the four on the Anker Zolo.
Check price on Amazon(paid link)Anker Zolo Power Bank 10,000mAh 30W (built-in USB-C cable)
Best for everyday phone top-ups
A 10,000mAh bank with a USB-C cable built in, made for quick daily boosts. Plug in, top up, get on with your day.
Who it's for: A smart stocking filler for anyone whose phone dies by teatime.
The facts that matter
- 30W charging takes an iPhone 15 from 0 to 57% in 30 minutes.
- Up to 2 full charges for an iPhone 15 and 1.94 for a Samsung S24.
- A built-in USB-C cable tested for over 10,000 bends, plus two-way USB-C (30W out, 20W in).
Why it made the list: Its 30W charging takes an iPhone 15 from 0 to 57% in 30 minutes. It gives up to 2 full charges for an iPhone 15 and 1.94 for a Samsung S24. Anker says the built-in cable has been tested for over 10,000 bends, and the two-way USB-C port gives 30W out and takes 20W in.
Worth knowing: The built-in cable is 13.7 cm, so the phone sits close to the bank while it charges.
Check price on Amazon(paid link)