Anker's PowerCore III is an all-in-one charging solution with up to 18W wired speeds and 10W wireless speeds thanks to the Qi charging pad and PowerIQ technology. Or perhaps capacity is more important than flexibility, so you'll want a beefy power bank that can hold a lot of electrical juice, especially if you're using a Steam Deck or Nintendo Switch.

Anker 313 Power Bank (PowerCore 10K) - Anker US Anker 313 Power Bank (PowerCore 10K) - Anker US

Capable of charging up to three devices at once, you might run out of juice faster than you'd like but that's reasonable for a device that's small and lightweight enough to fit into your pocket. It also has a built-in flashlight which is useful for when you're camping or suffering from a power cut. We also love the informative OLED display, which will tell you how much each connected device is draining and how much of your capacity is left.

The Anker PowerCore 13000 Power Bank looks bulky but it's surprisingly lightweight given its 13,000mAh capacity. You can safely recharge your PowerCore 10000 in 6-7 hours using a charger with an output of 2 Amps (2A) or higher.

Anker 313 Power Bank (PowerCore 10K) - Anker UK

The activity centers’ straps can detach or break while a child is in the activity center, posing fall and injury hazards to the child. We connect power banks through a USB power meter to a range of devices, including Android and iOS smartphones and an Acer Chromebook, to check how much power they output from each of their USB-A and USB-C ports. We measured the capacity of each charger by using a digital meter and a dummy resistive load set for different discharge rates, as well as by truth testing any claims from the manufacturer regarding the number of charges you could get for different devices. Qi-certified charging up to 10W lets you fully charge an iPhone 11 in less than 4 hours no matter where you are.PowerCore is equipped with a 10,000mAh cell capacity to keep your devices charged for at least a full day.

Anker PowerCore III Wireless Power Bank, 10000 mAh, 10K

It snaps onto the back of it via MagSafe with its perfectly aligned magnets meaning it'll never let you down.Connect PowerCore to an 18W charger to simultaneously charge your phone wirelessly while recharging PowerCore’s battery. Look out for enough power to keep your phone recharged a few times but don't count on recharging your laptop so easily with these, and there probably won't be too many port options either. In our 15-minute fast-charge test, it charged our smartphone by 15%, and even had enough oomph to give a quick boost to our charge-starved Chromebook, though at less than half the normal charger’s 45W speed. That’s not bad at all for an affordable power bank, and we also found it usable for charging tablets and even a Chromebook laptop, albeit at a slower-than-usual speed.