Power Supply
Information about the Power Supply
Power
Surface RT / Surface 2
24W [12V / 2A]
Surface Pro / Pro 2
48W [12V / 2A] + 5V 1A USB accessory port
Both types of chargers are interchangeable between units. RT brick will only trickle charge the Pro units thought due to low amperage output.
Pro adapters also include a 5V 1A USB Type-A port for accessory charging when needed.
Note: it's possible to get a USB PD compatible brick and one of those Type-C to Surface Connect adapters. Reminder that there are two types and we're dealing with the old version which might be a bit more difficult to source!
Technical Info
Good link explaining the various differences between the Surface platform PSU's https://dancharblog.wordpress.com/2016/12/10/surface-book-pro-3-pro-4-and-docking-station-power-supplies/
Pinout
Further information
Surface power adapter pinouts:
http://thomsoneu.blogspot.com/2014/06/microsoft-surface-power-plug-pinout.html http://thomsoneu.blogspot.com/2020/05/rebirthing-surface-pro-2.html
Troubleshooting
If the LED light on your Surface charger is blinking, flashing, off, or on (but your Surface still isn’t charging), here’s what to do:
Check cables and reset your power supply unit
Disconnect the charger from your Surface, unplug the power cable from the electrical outlet in the wall, and then disconnect any USB accessories. Wait 10 seconds. After that, clean everything with a soft cloth, and check for any damage. (Be sure to replace damaged cables.) Plug the charger back into the electrical outlet and your Surface.
Note: After you unplug the charger from your Surface and the wall, make sure to wait 10 seconds. This step resets the charger.
Plug it in the other way
Flip the charger 180 degrees, and check to see if the LED light comes on and if your Surface starts charging again.
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