How to Choose the Optimal Travel Charger

Step by step

1. 1 min

   Determine your total power requirement

   Identify the maximum wattage required by your most power-hungry device, typically your laptop. Select a charger with a total output capacity that matches or exceeds this single-port demand to ensure full-speed charging.

   Note: Look for the Power Delivery (PD) rating on your device's original power brick.
2. 1 min

   Prioritize Gallium Nitride technology

   Ensure the charger utilizes Gallium Nitride (GaN) components rather than traditional silicon. GaN chargers operate with higher efficiency, resulting in a smaller physical footprint and reduced heat output during operation.

   Note: GaN chargers are essential for maintaining a lightweight carry-on profile.
3. 30 sec

   Check port configuration and distribution

   Assess the number of USB-C and USB-A ports based on your daily device load. Note how the charger allocates power when multiple ports are occupied, as some chargers drop the wattage of the primary port significantly when a secondary device is connected.

   Note: Consult the manufacturer's power distribution table on the packaging.
4. 30 sec

   Verify global voltage support

   Confirm the charger specifies an input range of 100V-240V at 50/60Hz. This range ensures compatibility with electrical grids worldwide without the need for a bulky voltage converter.

   Note: You will still require a physical plug adapter for specific regional socket shapes.
5. 1 min

   Evaluate protocol support

   Confirm support for industry-standard fast charging protocols such as USB-PD (Power Delivery) and PPS (Programmable Power Supply). PPS is critical for modern smartphones to negotiate optimal current and prevent overheating.

   Note: Avoid proprietary charging protocols that limit compatibility across different brands.