MagSafe and magnetic power banks: what to know before you buy

Magnetic power banks stick to the back of the phone and charge without a cable. They are popular with iPhone users, but wireless charging has trade-offs. This guide helps you decide if one is right for you.

How it works

A magnet ring aligns the power bank's wireless coil with the phone's coil. The power bank then transfers energy wirelessly. Because alignment is automatic, charging is more reliable than a loose wireless pad.

MagSafe, Qi2 and 'MagSafe-style'

MagSafe is Apple's system. Qi2 is the open standard with a similar magnetic ring. Many cheaper power banks say 'MagSafe-style', which usually means compatible magnets but not necessarily Apple's certification. Read reviews about magnet strength and charging speed.

Speed and heat

Wireless charging is typically 5W to 15W, slower than a USB-C cable, and it creates more heat. That is fine for a top-up while you use the phone, but not for a fast charge before you leave home.

Cases and fit

A thick case, a metal plate or a wallet card can weaken the connection. Use a MagSafe-compatible case, and avoid placing a card between phone and power bank.

Do you want a USB-C port too?

Choose a magnetic power bank that also has a USB-C port. It lets you charge the power bank itself and gives you a wired option when you need speed.