How to Choose the Right 45W USB-C Fast Charger

Is your smartphone's battery flat with only a few minutes to spare before you leave? Tired of juggling an army of adapters for your phone, tablet, and laptop? Switch to a single 45W USB-C fast charger and simplify your life: one power brick to efficiently charge all your modern devices.

This guide breaks down the essential criteria and presents our selection of the best chargers on the market today. Our goal is to help you make the right choice, regardless of your ecosystem (Samsung, Apple, Google, etc.).

How to Choose a 45W USB-C Power Adapter

The charger market can be a real jungle. To cut through the noise, here are the key points to check before you buy.

1. Check Charging Protocol Compatibility: Power Delivery and PPS

The advertised 45W output isn't the whole story. For fast and safe charging, the charger must "communicate" correctly with your device. The benchmark standard is Power Delivery (PD 3.0), adopted by most recent devices, including iPhones and MacBook Airs.

For certain devices, particularly high-end Samsung smartphones, an additional protocol is required to reach maximum speed: PPS (Programmable Power Supply). A PPS-compatible charger, like the official 45W Samsung charger, adjusts voltage and current in real-time to optimise charging and preserve battery health.

2. Opt for GaN Technology for a Compact Form Factor

If you're looking for a charger that's both powerful and easy to carry, a 45W GaN charger is the ideal option. Gallium nitride (GaN) is a semiconductor material that enables smaller, lighter chargers that run cooler than traditional silicon-based models, all without compromising on power. A major advantage for anyone on the go.

3. Evaluate the Number of Ports Based on Your Needs

A single USB-C port is sufficient if you only charge one device at a time. However, if you want to simultaneously power your smartphone and earbuds, or your tablet and smartwatch, a dual USB-C charger will be far more practical. These models feature intelligent power distribution technology that splits the 45W between the two ports based on the connected devices' needs.

45W USB-C Fast Charger Picks

To guide you, we've scrutinised several models based on their technical specifications, versatility, and compliance with European safety standards (CE).

1. Samsung EP-T4511 45W USB-C Fast Charging Adapter with Cable

The Performance Choice: The official Samsung adapter is your best guarantee for optimal performance with compatible Galaxy devices. It features Super Fast Charging 2.0 technology (based on USB PD 3.0 PPS), ensuring the full 45W of power where supported.

Highlights:

• Optimised Performance: Tailor-made for Samsung Galaxy devices compatible with Super Fast Charging 2.0.
• All-in-One Solution: Comes with an official 5A USB-C to USB-C cable, which is essential for ensuring both speed and safety.
• Energy-Efficient: Standby power consumption of less than 5 mW—a small gesture for the planet and your wallet.
• Integrated Safety: Protection against overcurrent, overheating, and short circuits.

Who is it for? The sensible choice for owners of recent Samsung smartphones (Galaxy S series, Note, etc.). It's the surest way to leverage the maximum charging speed promised by the manufacturer, with no compatibility headaches.

2. Belkin BoostCharge Compact 45W Portable Charger with USB-C Cable

The Eco-Conscious Nomad: This Belkin charger checks all the boxes: power, portability, and sustainable design. Certified USB-C PD 3.1 with PPS support, it offers broad compatibility, from an iPhone charger to a MacBook Air charger, in a feather-light package.

Highlights:

• Universal Compatibility: Adapts to a wide range of USB-C devices (Apple, Samsung, Google, etc.).
• Powerful Enough for an Ultrabook: Delivers up to 45W, enough to easily power a MacBook Air or a Chromebook.
• Pocket-Sized: Feather-light at 58g with a compact design, it slips in anywhere.
• Sustainable Design: Made with 72% recycled plastics and comes in plastic-free packaging.

Who is it for? Ideal for eco-conscious travellers who juggle devices from multiple brands (Apple, Samsung, etc.) and are looking for a single, lightweight, and reliable charger.

3. Belkin BoostCharge 45W Compact Charger with Dual USB-C GaN Ports

The Most Versatile: This model combines GaN technology with dual USB-C ports for maximum versatility. It can charge a single device at 45W or two devices simultaneously thanks to intelligent power sharing (e.g., 25W + 20W).

Highlights:

• GaN Technology: Smaller, lighter, and runs cooler than a conventional charger of the same wattage.
• Dual USB-C Ports: Allows you to charge two devices at once, like a smartphone and a tablet.
• Intelligent Power Sharing: Automatically adjusts the power delivered to each port for optimised charging.
• Broad Compatibility: Supports the PPS protocol for Samsung devices, in addition to the PD standard for other brands.

Who is it for? Perfect for those who want to charge multiple USB-C devices simultaneously and benefit from the compact design and efficiency of GaN technology.

Looking for Other Options?

If our selection doesn't quite meet your needs, or if you're simply looking for a good cable to go with your new charger, explore our full category.

? Discover our selection of fast-charging USB-C cables

Frequently Asked Questions

Can a 45W charger damage a phone that only supports 20W?

No. Thanks to the Power Delivery standard, the charger and the device "communicate" to determine the maximum power the phone can safely accept. The charger will therefore only deliver the required power (20W in this example), posing no risk to the battery.

What's the difference between a 45W charger and a 45W GaN charger?

The power output is identical: 45 watts. The difference lies in the internal technology. A 45W GaN charger uses gallium nitride, a material that allows it to be much more compact, lighter, and run cooler than a conventional silicon-based charger with the same power rating.

Is it necessary to use the cable that comes with the charger?

Yes, it is highly recommended. Use the included cable or a certified cable capable of handling 45W (typically 3A or 5A models). A poor-quality or unsuitable cable can not only throttle the charging speed but also pose a risk to your devices. Opting for a charger with a USB-C cable bundle is therefore often the simplest and safest solution.