Surface Pro 2017, Surface Laptop, Surface Book, Surface Pro 3, Surface Pro 4, and docking station power supplies

Many folks on Reddit and SurfaceForums.net were interested in all the power supply (P/S) options for the latest 2016/2017 Surface products. Here are all the specs, product links, and FAQ in a handy list:

102 Watt P/S:

 

90 Watt P/S:

  • 15V@6amps
  • Model: 1749
  • Intended for:
    • 2nd-gen Surface Dock (brick style for Surface Pro 2017 Pro3/Pro4, Surface Book, Surface Laptop)
  • Notes: Genuine OEM part not available from MS store – only available via warranty replacement or via 3rd-parties
  • Amazon purchase link

 

65 Watt P/S:

  • 15V@4amps+ 5V@1amp
  • Model: 1706
  • Intended for:
    • Surface Book (all models except Performance base which will charge slowly)
    • Other models will work OK
  • MS info link
  • Amazon purchase link

 

48 Watt P/S:

  • 12V@4amps
  • Model: 1627
  • Intended for:
    • 1st-gen Surface Docking Station (clamp-style for Surface Pro 3 / Surface Pro 4 / Surface Pro 2017)
  • Notes: Genuine OEM part not available from MS store – only available via warranty replacement or via 3rd-parties
  • Amazon purchase link

 

44 Watt P/S:

  • 15V@2.58amps + 5V@1amp
  • Model: 1800
  • Intended for:
    • 2017 Surface Pro (all models)
    • 2017 Surface Laptop (all models)
    • Other models will work OK
  • Notes: Genuine OEM part not yet available from MS store – only available via warranty replacement. Folks seeking a spare should get the 65-watt charger.

 

36 Watt P/S:

  • 12V@2.58amps + 5V@1amp
  • Model: 1625
  • Intended for:
    • Surface Book (without NVIDIA dGPU)
    • Surface Pro 4 (all models)
    • Surface Pro 3 (all models)
    • other models will work OK
  • MS info link
  • Amazon purchase link

 

24 Watt P/S:

  • 15V@1.6amps
  • Model: 1735/1736
  • Intended for:
    • Surface Pro 4 Core m3 model
    • Surface Pro 2017 Core m3 model
    • Surface Laptop Core m3 model
    • other models will work OK but may charge slowly
  • Notes: Genuine OEM part not available from MS store – only available via warranty replacement or via 3rd-parties
  • Amazon purchase link

 

FAQ:

Will a bigger power supply break my device? What about 12V vs 15V? Won’t 15V damage my Surface Pro 3?

  • No. The tablet device limits the power drawn from the power supply. All devices since Surface Pro 3 are able to accept between 11V-15.5V on the charge port and intelligently limit the current drawn and delivered to the battery.

Will a bigger power supply charge my device faster?

  • Generally no. Most devices already come close to hitting the battery’s thermal limit when charging so a bigger supply will typically not be effective in accelerating the charge-rate. In some cases when the device is in use and USB accessories are plugged in, you may see an increase in charge speed with a larger power supply. Be aware that charging Li-ion batteries faster generally lowers their overall lifespan.

Will a smaller power supply work with my more powerful device?

  • Yes, but it will charge slowly. If the device is in use, it is likely that the battery will continue to drain even when plugged in or simply remain at steady-state charge.

Can I get a longer cable for my power supply?

  • Yes, you can swap out the mains/wall-plug cable for a longer “figure-8” aka IEC 7 cable like these. Longer cables are not available for the side that plugs into the Surface.

Is 90 watts from the dock power supply enough to power the Surface Book with Performance Base that ships with a 102watt power supply? What about if all the USB ports are in use on the dock?

  • Yes the 90-watt supply is sufficient. In some cases when all ports on the dock are in use, the SurfaceBook with Performance Base may charge slower than the 102-watt supply.

Can I use my Dock without a power brick? Can the Surface tablet power the Dock?

  • No, you need to use the dock’s power brick to use the dock.

 

References:

 

This list does not include older Surface power supplies. Let me know if I missed anything or if you have any further questions about Surface power supplies.

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