How can I charge my laptop while travelling?

How to charge laptop while travelling: Power bank limits

Choosing the right gear for how to charge laptop while travelling remains essential for remote work productivity. High-capacity portable batteries assist travelers, yet airline safety regulations restrict their transport in carry-on luggage. Learn the specific capacity requirements and necessary airline approvals to protect your equipment and ensure a smooth journey.

How can I charge my laptop while travelling?

Charging a laptop while travelling depends heavily on your specific hardware, travel mode, and power needs. The most effective approach requires understanding whether your machine supports USB-C Power Delivery or requires a traditional AC wall outlet, as this dictates which portable solutions will work for you.

There is no universal solution, but most travellers find that a combination of high-capacity power banks and vehicle-based adapters covers almost every scenario. Choosing the right method is usually straightforward once you know your laptops wattage requirements.

Using High-Capacity Power Banks

For modern laptops that support USB-C Power Delivery (PD), a portable laptop charger for travel is often the most convenient choice. These devices have become significantly more capable recently, with many models now providing enough output to charge demanding ultrabooks and even some mid-range workstation laptops.

Most travel-ready power banks capable of charging a laptop provide at least 65W of output. ^[1] In 2026, many reliable units support up to 100W or more, which covers the vast majority of consumer laptops. Without this specific wattage, your laptop might not register the charge at all - or it may charge painfully slowly while you work.

Powering Your Laptop on the Road

Road trips offer unique options for power, provided you have the correct adapters for your vehicle. If your car has a standard 12V cigarette lighter outlet, you have two primary ways to keep your battery topped up during long drives.

The simplest method is using a dedicated USB-C car charger that supports the PD standard. These are compact and efficient, often reaching 60-100W output. Alternatively, a car power inverter for laptop converts your cars 12V battery power into a standard AC wall outlet. This is essential for older laptops that lack USB-C charging capabilities. Keep in mind that inverters can draw significant power, so it is best to use them while the engine is running to avoid draining your vehicles starter battery.

Safety and Travel Regulations

When carrying high-capacity batteries, safety is non-negotiable. Most airlines have strict rules regarding lithium-ion batteries in carry-on luggage. Generally, power banks exceeding 100Wh require airline approval, and those over 160Wh are frequently prohibited entirely.

Always verify the capacity of your power bank, which is typically printed on the back of the device. Travelling with unbranded or damaged power banks is a major risk, as these can overheat during flight. It is worth spending a bit more on reputable brands that have built-in overcurrent and temperature protection.

Choosing the Right Travel Charging Method

USB-C Power Bank

- Laptop must support USB-C Power Delivery

- Short trips, flights, and public transit

- High - fits in most carry-on bags

Car Power Inverter

- Works with standard AC wall plugs

- Road trips and long-distance driving

- Medium - requires dedicated vehicle space

Portable Power Station

- Offers multiple AC, DC, and USB outputs

- Camping, off-grid work, and heavy hardware

- Low - heavy and takes up significant space

Mai's Remote Work Trip

Mai, a digital marketer from Da Nang, often works from cafes while travelling by bus to Ho Chi Minh City. She once spent three hours searching for an open outlet, which ruined her productivity.

She tried using a cheap power bank she found online, but it failed to charge her laptop while in use. It was a frustrating lesson in wattage; the bank only output 15W, while her laptop required 65W.

After researching, she bought a 100W PD-enabled power bank. She also learned to dim her screen and disable background sync apps to stretch her battery life.

Now, Mai consistently gets four extra hours of work time on the bus, and she never worries about finding a cafe plug again.