Which USB-C PD charger is compatible with my 15" Surface Book 3?

Question

Which USB-C PD charger is compatible with my 15" Surface Book 3?

Anonymous

I think the default charging port on my Surface Book 3 is dying. I have to attach the Surface Connector multiple times to the Surface Book 3 port, before the connector will light up and charge the laptop.

It is not a defective charger, because I have no issues with that charger in charging my Surface Book 1. So there would be no point in purchasing a new charger.

Also, my Surface Book 3 is out of warranty.

I read I could also charge the Surface Book 3 via the USB-C port, using a PD Charger with the same wattage (the writing on my Surface Book 3 charger indicates a wattage of 127 watts).

Could you suggest compatible USB-C chargers for my Surface Book 3?

The closest charger I could find in terms of wattage is this one from DELL:

Dell USB-C 130 W AC Adapter with 1meter Power Cord - United States | Dell Canada

Would that charger be compatible with my Surface Book 3?

Thanks so much!

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9 answers

Answer 1

Anonymous

It is hard to find good USB PD chargers.

the standard allows for 5V, 9V,15V and 20V so check labels close to be sure the desired power profiler is available

extended power is added recently to 28V, 36V and 48V

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Answer 2

Hi Sophie,

You are coming at this the right way. Part of that 127W is for the USB port on the PSU itself. 120W is what is allocated to the device. Getting as close to that as possible will ensure that you have enough power to charge and use the device at the same time. If your concern is more about just charging the device while it is not being used, you could use a lower wattage USB-PD charger provided it is at least 60W.

Here is more info to look at:

Surface power supplies and charging requirements - Microsoft Support

USB-C and Fast Charging for Surface - Microsoft Support

Hope this helps,

Greg

Answer 3

I just chatted with DELL; they said all their chargers are 19.5 volts - which they said was too much and could damage the Surface Book 3.

They also said it's more important to match the voltage than the wattage.

Hoping you can suggest a compatible USB-C charger - or perhaps one doesn't exist for the Surface Book 3 (15")?

Answer 4

Hi Sophie,

You are coming at this the right way. Part of that 127W is for the USB port on the PSU itself. 120W is what is allocated to the device. Getting as close to that as possible will ensure that you have enough power to charge and use the device at the same time. If your concern is more about just charging the device while it is not being used, you could use a lower wattage USB-PD charger provided it is at least 60W.

Here is more info to look at:

Surface power supplies and charging requirements - Microsoft Support

USB-C and Fast Charging for Surface - Microsoft Support

Hope this helps,

Greg

I need to be able to charge my Surface Book 3 while it's being used (I use the laptop for school), because now the laptop only lasts about 2 hours on full charge.

Based on your post, I guess I need a 120-watt charger then.

Would the Dell charger I list in my opening post (being 130 watts) be too much for the Surface Book 3?

If yes, would you be able to suggest an appropriate USB-C charger for my SB3 (that would allow me to use the laptop while charging)?

(Microsoft does not seem to offer any compatible USB-C PD chargers).

Answer 5

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Which USB-C PD charger is compatible with my 15" Surface Book 3?

9 answers