The Edit — Gadgets
How Many Watts Is a Laptop Charger? USB-C Explained
Most Windows ultrabooks ship with a 65W charger and a 14-inch MacBook Pro with up to 96W. The cable has its own ceiling too: without an e-marker chip it stops at 60W, whatever the charger claims.
This guide is research-led: we have not handled these units ourselves. If you buy through our links we may earn a commission — it never changes a pick.Research-led, nothing handled. We may earn from links; it never changes a pick. How we choose
The page reads the USB-C specification and the makers’ published figures, and the 4 products shown, a cable and 3 chargers, are ranked as How we choose describes. Nothing here was used or tested.
UGREEN 240W USB-C Cable, 2-Pack
Good fit Your cable drawer is full of phone cables of unknown rating
Not for You only need to charge a phone
UGREEN Nexode Air 65W USB-C Charger
Good fit Your laptop shipped with a 65W adapter, or it is a MacBook Air
Not for You want to charge a laptop and a phone at once
UGREEN Nexode Pro 160W 5-Port Charger
Good fit You run a 16-inch MacBook Pro and want one brick for the desk
Not for Your laptop never draws more than 65W
Anker Compact Foldable 100W USB-C Laptop Charger
Good fit You want one charger for a laptop, a tablet and a phone
Not for Your laptop needs the full 140W
The charger, the cable and the laptop each set a ceiling
USB-C charging negotiates: the laptop asks for power, the charger offers what it has, and the cable reports what it can carry. The lowest of the three is what you get, which is why a 100W charger can still trickle-charge a laptop.
Standard USB Power Delivery tops out at 100W, at 20 volts and 5 amps. Revision 3.1 added an Extended Power Range that reaches 240W, at 48 volts and 5 amps, for the largest laptops.
Cables without an e-marker stop at 60W
A USB-C cable carries a chip, the e-marker, that tells the charger what it can handle. Any cable rated above 60W has to have one. Without it, the link is capped at 60W however capable the charger and laptop are.
Above 100W the requirement tightens again: an EPR cable needs an e-marker set as EPR-capable for 48 volts and 5 amps, and USB-IF requires the 240W mark to be printed on the cable or its moulding.
| Cable | Chip | Ceiling |
|---|---|---|
| Basic USB-C, no e-marker | None | 60W |
| E-marked 100W cable | Standard e-marker | 100W |
| EPR cable, 240W marked | EPR e-marker | 240W |
This is a common reason a new charger disappoints. The cable in the drawer is often the 60W one that came with a phone.
UGREEN 240W USB-C Cable, 2-Pack
Two 6.6 ft cables rated for 240W, enough for any USB-C laptop charger sold today.
Current price shown on Amazon. We may earn a commission.
| Rating | 240W, USB-C to USB-C |
|---|---|
| Length | 6.6 ft |
| In the box | 2 cables |
The UGREEN 240W cable is the cheap fix for the drawer of unknown phone cables. At 240W it clears every laptop charger on this page, including the 140W port a 16-inch MacBook Pro needs.
Owners describe sturdy connectors and a cable that bends without tangling, and 6.6 ft reaches a desk socket. The 2-pack means one can live in the laptop bag.
Buy it if
- Your cable drawer is full of phone cables of unknown rating
Don't buy it if
- You only need to charge a phone
How many watts your laptop charger needs
The simplest guide is the adapter the maker ships. Apple lists 67W, 70W and 96W adapters for the 14-inch MacBook Pro and a 140W for the 16-inch. The 13- and 15-inch MacBook Air with M4 ship with a 30W, 35W or 70W adapter, and Apple quotes its fast-charge figure on the 70W.
| Laptop | Maker’s adapter | Buy at least |
|---|---|---|
| MacBook Air, 13 and 15 inch M4 | 30W, 35W or 70W | 30W; 70W to fast-charge |
| MacBook Pro 14-inch | 67W, 70W or 96W | 96W to 100W |
| MacBook Pro 16-inch | 140W | 140W, with an EPR cable |
| Windows ultrabook | Usually 65W | 65W |
| Gaming laptop | Often over 200W | Its own adapter |
A charger below that figure still works. It charges more slowly, and under a heavy load it may only hold the battery level steady rather than fill it.
UGREEN Nexode Air 65W USB-C Charger
A small single-port 65W charger, the figure most Windows ultrabooks ship with.
Current price shown on Amazon. We may earn a commission.
| Output | 65W, USB-C |
|---|---|
| Ports | 1 USB-C |
| Cable | 3.3 ft, included |
For a Windows ultrabook that shipped with a 65W adapter, or any MacBook Air, the UGREEN Nexode Air matches the figure without the bulk. Owners like how small it is for travel and say it drives 65W devices properly.
The complaint that recurs is heat: some owners find it very hot under load, while others say it has stayed cool. It has 1 port, so a phone waits its turn.
Buy it if
- Your laptop shipped with a 65W adapter, or it is a MacBook Air
Don't buy it if
- You want to charge a laptop and a phone at once
UGREEN Nexode Pro 160W 5-Port Charger
160W across 5 ports, with up to 140W from one USB-C port, the figure a 16-inch MacBook Pro asks for.
Current price shown on Amazon. We may earn a commission.
| Total output | 160W |
|---|---|
| Single port | Up to 140W, USB-C |
| Ports | 5 |
| Display | Shows wattage per port |
A 16-inch MacBook Pro asks for 140W, and the Nexode Pro 160W delivers that from a single USB-C port while 4 more ports charge the rest. Owners report running a MacBook Pro and a second laptop from it at once, and like the display showing each port’s wattage.
It is a young listing with far fewer ratings than the other chargers here. Pair it with a 240W cable, because a 100W cable stops the 16-inch short.
Buy it if
- You run a 16-inch MacBook Pro and want one brick for the desk
Don't buy it if
- Your laptop never draws more than 65W
One charger for everything is the practical buy
A 100W charger covers a laptop, a tablet and a phone, and splits its output when more than one is plugged in. That is why the wattage on the box is a total rather than a promise for each port. The same maker’s power banks are set out in Anker’s portable chargers, profiled.
Anker Compact Foldable 100W USB-C Laptop Charger
A folding 100W charger that ships with a 5 ft cable rated for the job, which is where most kits fall down.
Current price shown on Amazon. We may earn a commission.
| Output | 100W, USB-C PD |
|---|---|
| Cable | 5 ft, included |
| Owners report | Honest 100W, compact |
Owners of the Anker 100W charger report that it delivers an honest 100 watts, including to demanding machines such as an ASUS ROG Zephyrus G14 and a Steam Deck.
It folds, it is smaller than most bundled laptop adapters, and it ships with a 5 ft cable rated for its output. That last point removes the 60W cable trap in one purchase. For a 16-inch MacBook Pro, buy the 140W adapter instead.
Buy it if
- You want one charger for a laptop, a tablet and a phone
Don't buy it if
- Your laptop needs the full 140W
Watts through a hub are not the watts at the wall
Plugging the charger into a hub rather than the laptop adds a third device to the negotiation. A hub’s pass-through port delivers less than it receives, because the hub keeps some for its own ports, and how much it keeps is on the listing rather than on the box. The Anker 332, for example, takes up to 100W in and passes up to 85W to the laptop.
Owner reports on hubs describe pass-through that works well on one unit and not at all on another, which makes it one of the most mixed features in that category. USB-C hubs, compared sets out which ones own that complaint, and what mAh measures covers the same arithmetic for a power bank.
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