For everyday electronics like smartphones, earbuds, or similar devices, a power bank with a capacity of around 10,000mAh might be perfect. As a bonus, it’s also slightly faster, recharging our test smartphone by 13% in 15 minutes over a USB-A connection and by 14% over USB-C. The 18W USB-C port offers the kind of charging speeds that you normally only find in a wall charger.

Anker PowerCore III Wireless review: Everything in moderation Anker PowerCore III Wireless review: Everything in moderation

It’s long enough to give you some flexibility, yet short enough that it won’t get caught on stray corners in your house. If you need to be able to recharge all your devices multiple times and over a number of days, these are the power banks you need.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.

power banks 2023: portable chargers for your devices The best power banks 2023: portable chargers for your devices

Versatile Charging: Anker's exclusive PowerIQ and VoltageBoost technology combine to detect and deliver a tailored charge up to 12W, while the trickle-charging mode is the best way to charge low-power devices. This means your power bank will often recharge faster when connected to a suitable fast charger, at anywhere from 20W to 60W.

To charge simultaneously at full speed, it’s recommended to use a charger with at least an 18W output. In this case, each port delivers the same wattage of electricity, but not every model does this the same way. Sign up to receive daily breaking news, reviews, opinion, analysis, deals and more from the world of tech. It's about the size of many smartphones which isn't as sleek as some but Anker is a reliable name so you know you're guaranteed of safety here.