Travel charging fails for boring reasons: the wrong port negotiation, an under-rated cable, or a brick that overheats in a hotel room. Headline wattage is rarely the deciding factor. This guide is organised by trip type so you can match the charger to how you actually travel.

Before you buy: three numbers to check

Your laptop’s real requirement. Most 14” laptops run happily on 65W; many 16” and all performance machines want 100W+. Check the existing adapter or the manufacturer’s spec — not the marketing.
PPS support. If you carry a Samsung or Pixel phone, a PPS-capable port is the difference between fast charging and plain charging. See our USB-C power delivery guide for why.
Your cable’s rating. USB-C cables above 60W need a 5A e-marker chip. A 60W-rated cable silently caps a 100W brick. This is the single most common cause of “my charger is slow”.

The single-device traveller

Need: One 30–45W brick with PPS.

A 30W GaN charger charges any modern phone at or near its advertised peak and fits in a jeans pocket. You don’t need more unless you carry a laptop.

Watch for: single-port bricks with no fixed PDO list published. If the profile list isn’t printed, you’re guessing.

Price reality: Genuine 30W GaN bricks with PPS start very cheap — the premium tier buys build quality and folding plugs, not speed.

Phone + laptop, one bag

Need: 65W, at least two ports, at least one PPS-capable.

This is the config most people should buy. A good 65W two-port GaN brick charges a laptop at full speed while topping up a phone at 18–30W.

Critical detail: many two-port bricks renegotiate when both ports are used — the laptop may drop from 65W to 45W. Look for a published per-port breakdown rather than a summed number.

Watch for: bricks that advertise “65W + 65W” — usually meaning 65W total across both ports, not simultaneously.

The family / multi-device bag

Need: 100W, three ports, published per-port limits.

100W three-port bricks replace two or three chargers. The catch is thermal: at full load, a small brick will get hot and may reduce output after several minutes.

What matters: sustained rating, not peak. A slightly larger brick that holds 100W is worth more than a tiny one that throttles to 65W.

Watch for: port position. Some three-port layouts make a thick cable block an adjacent port.

Long-haul / international

Need: Multi-region plug compatibility, or a dedicated travel adapter.

GaN bricks usually ship with fixed plug type. If you travel across regions, either buy the correct plug variant or pair a universal travel adapter with a high-wattage GaN brick — but check the adapter’s own wattage ceiling, which is often lower than the brick’s.

Watch for: universal adapters rated for only 2.4A. They’ll bottleneck any fast charger.

By trip type — the short version

Trip	What to buy
Weekend, phone only	30W single-port GaN with PPS
Work trip, phone + laptop	65W two-port GaN, one PPS port
Family trip, multiple devices	100W three-port GaN with published splits
International	Above + correct plug or universal adapter

The cable matters more than the brick

This is worth repeating because it’s the most common missed diagnosis:

Above 60W you need a 5A e-marker cable. Without it, charging caps at 60W regardless of what the brick claims.
Cheap cables cause the worst failure mode — intermittent negotiation drops that make a working charger look broken.
Cable length vs. charging speed is a genuine trade-off; longer runs lose more voltage.

What to avoid

Chargers with no published PDO/PPS profile list.
Multi-port bricks that advertise summed wattage as if it were simultaneous.
Universal travel adapters that don’t state a wattage rating.
Any charger whose only spec sheet line is “GaN 65W”.

Wattage and profile figures describe how USB-PD behaves rather than any specific product. Check your own device’s requirement and your cable’s e-marker rating before buying.