GaN Chargers Explained: Why Your Old Travel Adapter Is Obsolete

A few years ago, our travel bag still held three separate chargers: one for the laptop, one for the phone, one for the power bank. Today all of that fits into a single one, barely bigger than the old phone charger alone. The reason behind that is a technology now advertised on nearly every modern charger: GaN.

What GaN actually means

GaN stands for gallium nitride, a semiconductor material that’s increasingly replacing classic silicon in charging electronics. The key practical benefit: GaN components run noticeably cooler at the same power output, needing far less space for cooling. The result is chargers that, at 65 watts, are barely bigger than older 20-watt adapters.

Why that’s more than just “more compact”

Less heat also means multiple ports can charge simultaneously at high output without the device overheating during extended use. With the QuadPort GaN Charger 65W, that shows up concretely in daily use: laptop, phone, and headphones charging at the same time without a noticeable drop in speed – as long as not every port is pulling full power at once, since the full 65 watts is only reached on a single port.

The difference in power banks

The same technology is increasingly showing up in power banks too. The VoltCore 20,000 mAh Power Bank charges noticeably faster thanks to 22.5-watt fast charging over USB-C than older models with a plain USB-A output – at practically the same capacity.

Is switching worth it?

If you’re still carrying multiple old individual chargers, a single GaN charger saves not just space in your bag but, in most cases, actual charging time too. For a single device at home that rarely travels, switching is more a matter of convenience than necessity.