Up to 45W Laptop Charging

Small chargers for thin laptops

This page lists the chargers, cables and power banks whose highest watt figure is 45W or less. Today that is a set of 45W USB-C wall chargers with a UK plug. They are small enough to sit in a jacket pocket and suit thin laptops that do not draw much power, as well as tablets and phones. They charge over USB-C by USB Power Delivery, so the laptop takes only the power it needs.

What is here

• GaN chargers. Every charger here is built with gallium nitride (GaN), a material that lets a charger give the same power from a smaller, cooler body.
• Folding pins. Some have a UK plug whose pins fold flat, so it does not scratch a laptop in a bag.
• Displays. Some show the power going out on a small screen, a quick way to see how fast a device is charging.
• One or two ports. Most have a single USB-C port; a dual-port one shares its 45W between two devices.

All of them are also in 45W USB-C laptop chargers, the department range.

Is 45W enough for my laptop?

Look at the watts on the label of your laptop's own charger. If it says 45W or less, a 45W charger matches or beats it. Apple lists 30W and 35W adapters among those for MacBook Air models from 2022, and Microsoft lists 45W for many Surface models. If your laptop came with a 65W charger or more, a 45W one can still be useful as a light travel charger: the laptop will usually charge slowly, and it may only hold its level while you work hard. A Mac shows "Slow Charger" in that case. Microsoft says a Surface on less than its minimum may charge slowly or not at all, so check your own laptop's figure before relying on one.

Use a USB-C to USB-C cable rated for the power: any properly made one carries 60W, which covers a 45W charger. See USB-C to USB-C laptop cables.

Questions people ask about 45W chargers

Will a 45W charger damage a laptop that came with a 30W one?

No. Over USB-C the laptop asks for the power it needs and the charger supplies only that. Apple says a higher wattage adapter can be used safely.

Can I charge my phone with it too?

Yes. Phones and tablets that charge by USB-C take what they need. On a two-port charger, the 45W is shared between them.

Does it work with a laptop that has a round charging plug?

No. These are USB-C chargers. For a round plug, see universal laptop chargers.

Delivery is included in every price and tracked to your door. Each product page says when it usually arrives.

More to look at

• 45W USB-C laptop chargers
• 65W laptop charging
• USB-C laptop chargers
• USB-C to USB-C laptop cables
• For MacBook Air 13-inch
• Guide: Laptop chargers explained: watts, USB-C charging and UK plugs