GaN Charger Buying Guide: Power Everything with One Brick

By the Joybuy Editorial Team, July 04, 2026

Is your bag overflowing with tangled cables and all sorts of chargers? One for your laptop, another for your smartphone, and yet another for your tablet or earbuds... It's a struggle that mobile professionals and frequent travellers know all too well. GaN (Gallium Nitride) technology promises to bring order to this chaos with smaller, more powerful, and more efficient chargers.

This guide breaks down the benefits of a GaN charger for you and helps you choose the perfect model for your needs, without the unnecessary marketing jargon. We've sifted through several models to bring you a curated selection that will genuinely simplify your life (and lighten your bag).

How to Choose the Right GaN Charger

Before you take the plunge, let's review a few key points to ensure you make the right choice and guarantee perfect compatibility with all your devices.

1. Assess Your Power Needs (Watts)

Power, measured in watts (W), is the most critical factor. Determining what you need is simple: identify the most power-hungry device in your arsenal, which is often your laptop. A recent MacBook power adapter for an Air requires between 30W and 67W, while a MacBook Pro can demand up to 96W or even more.

• For mixed use (smartphone, tablet, ultraportable): A 65W to 67W charger is often the ideal compromise.
• For users of high-performance laptops: A 100W charger or more is a must to ensure fast charging, even when other devices are plugged in.

Rest assured, most modern GaN chargers integrate technologies like Power Delivery (PD), which automatically adjust the power delivered to each device to eliminate any risk of overcharging.

2. Count the Number and Type of Ports

One of the superpowers of a GaN charger is its ability to offer multiple ports in an ultra-compact form factor. A 3-port charger often represents the sweet spot for powering a computer, a phone, and an accessory at the same time.

• USB-C Ports: Essential, they have become the standard for fast charging. Make sure you have at least one or two that are Power Delivery (PD) compatible for your main devices.
• USB-A Ports: Still handy for compatibility with older cables or for charging less demanding accessories (smartwatches, earbuds).

Opting for a multi-device charger is the best way to travel lighter by carrying only a single power brick.

3. Consider Compactness for Portability

This is THE big promise of GaN: chargers that are much more compact and lightweight than their silicon-based predecessors. If you travel often, every gram and square inch counts. A good travel charger should be able to slip into any bag pocket. Some models even feature retractable prongs, a detail that makes all the difference in preventing scratches on your tablet screen at the bottom of your bag.

Our Recommended GaN Chargers

We have selected a few gems that stand out from the crowd, each tailored to a specific user profile.

Baseus EnerCore CJ21: The Organisation Champion

Why it stands out: The Baseus EnerCore CJ21 shines with its incredibly clever design, integrating two retractable cables (one USB-C and one Lightning). No more tangled messes or forgotten cables: this unique design frees you from the mental load of managing accessories.

• Highlights:

  • Two built-in retractable cables for ultimate portability.
  • A third USB-C port to charge up to 3 devices simultaneously.
  • 67W of power, more than enough for most laptops, tablets, and smartphones.
  • Compact, tangle-free design.

• Who is it for?: The organisational obsessive and the pragmatic traveller. If untangling cables is part of your morning routine, this all-in-one model is for you.

Anker Prime 67W: Compactness Meets Power

Why it stands out: This Anker charger is a true powerhouse in a tiny package. According to Anker, it's 51% more compact than the original 67W MacBook charger. Its foldable prongs make it the ideal travel companion.

• Highlights:

  • Ultra-compact and foldable, a true pocket-sized format.
  • Fast charging up to 67W on a single USB-C port.
  • 3 ports (2 USB-C, 1 USB-A) for maximum versatility.
  • ActiveShield 2.0 technology for intelligent temperature monitoring and safe charging.

• Who is it for?: Perfect for the digital nomad and the minimalist who scrutinise every extra gram in their bag, without compromising on the charging speed of their MacBook Air, tablet, and phone.

Anker 736 (100W): Uncompromising Power

Why it stands out: With its 100W of total power, the Anker 736 is built for the most demanding users. It can bring a powerful laptop back to life at full speed while charging two other devices.

• Highlights:

  • 100W of power capable of rapidly charging the most power-hungry laptops (e.g., MacBook Pro).
  • Simultaneous charging for 3 devices thanks to its 2 USB-C ports and 1 USB-A port.
  • GaN II technology for a compact form factor despite its firepower.
  • Intelligent power distribution between ports.

• Who is it for?: The power user who juggles a high-performance laptop and won't tolerate any charging slowdowns, even when their phone and earbuds are plugged in at the same time.

Looking for Other Options?

This selection already covers many needs, but the charger market is constantly evolving. If you haven't found what you're looking for, don't worry: there are a multitude of other power and port configurations available.

? Explore our entire collection of USB Type-C Chargers to find the perfect model.

Frequently Asked Questions (FAQ)

What is a GaN charger and why is it different?

A GaN charger uses components made of Gallium Nitride (GaN) instead of traditional silicon. To put it simply, this next-generation semiconductor outperforms silicon: it can handle higher voltages and generates much less heat. In practical terms, this results in chargers that are:

1. Smaller and lighter for the same power output.
2. More efficient, with much lower energy loss (and therefore less heat).
3. Capable of delivering very high charging power in a tiny package.

Can a GaN charger damage my devices' batteries?

Absolutely not. A certified GaN charger is just as safe, if not safer, than a conventional charger. Modern chargers, whether GaN or not, are smart. They incorporate chips (compliant with the USB Power Delivery standard, for example) that communicate with the connected device. The charger only delivers the power requested by the device, which eliminates any risk of overcharging, over-voltage, or overheating.

Can I use a 100W charger for a device that only needs 20W?

Yes, without any problem. That's the magic of smart charging standards. A 100W charger will detect that a smartphone only needs 20W and will automatically limit its power output. Using a more powerful charger will never harm your device. It simply means you have headroom to plug in more demanding devices or to charge several at the same time.