Surface Laptop 3 USB-C Charging

USB-C charging seems to be a very confusing topic for Microsoft Surface products. Some USB chargers can charge some Microsoft Surface products but don’t work with others. To be clear, we have tested all chargers we can gather to charge Surface Laptop 3 to determine which chargers will work and which will not work with the laptop.

We will start with a Q&A style to address your questions, jumping from an overview to a specific charger.

Question 1

Can you charge your Surface Laptop 3/4/5 with a standard mobile phone USB charger?

Answer

No, you can’t! Surface Laptop requires chargers that support the Power Delivery (USB-C PD) protocol to deliver significant power for a smooth charging experience. A standard mobile charger including USB chargers with a voltage of 5V and an amps rate from 500 mA to 2A.

Note Only Microsoft Surface 3 and Surface Go currently support charging over a standard mobile phone charger.

Question 2

What happens when you plug in a Surface Laptop 3/4/5 with an unsupported charger?

Answer

You will get a “PC isn’t charging” notification when you plug in an unsupported charger to the Surface Laptop USB-C port. It will ask you to use the recommended charger and cable and ensure it’s directly plugged in.

Unsupported Chargers Plugin

Question 3

Can you charge a Surface Laptop with a Samsung USB charger rated at 5V/1.55A?

Answer

Surface Laptop 3 - Samsung 5V/1.55A charger

No, you can’t! The Samsung USB charger rated at 7.75W (5V/1.55A) doesn’t meet the minimum power requirement for charging Surface Laptop 3/4/5.

Here are our testing results:

  • Charge while the laptop is on. When we plugged the charger in, the “PC isn’t charging” notification popped up on the screen, and there was no sign of charging.
    Unsupported Chargers Plugin
  • Charge while the laptop is off. There is no capacity percentage gain from our 10-minute charging test.
Question 4

Can you charge a Surface Laptop 3/4/5 with a Qualcomm Quick Charge 3.0 USB charger?

Answer

Qualcomm Quick Charge 3.0

No, you can’t! Surface Laptop 3/4/5 can’t work with Qualcomm Quick Charge 3.0 protocol, as it can’t negotiate with the charger to get maximum power output for charging the laptop.

Here are our tested chargers:

  • JOYROOM QC3.0 USB Charger: rated at 18W (5V/2A, 9V/2A, 12V/1.5A).
  • REMAX 10,000mAh RPP-105 Power Bank (USB-A port): rated at 18W (5V/3A, 9V/2A, 12V/1.5A).
  • MI 20,000mAh PLM07ZM Power Bank (USB-A port): rated at 18W (5V/2.4A, 9V/2A, 12V/1.5A).

Here are our testing results:

  • Charge while the laptop is on. When we plugged the charger in, the “PC isn’t charging” notification popped up on the screen, and there was no sign of charging.
    Unsupported Chargers Plugin
  • Charge while the laptop is off. There is no capacity percentage gain from our 10-minute charging test.
Question 5

Can you charge Surface Laptop 3/4/5 with a USB-C PD Charger?

Answer

USB-C PD Chargers

Yes, you can! Surface Laptop 3 works well with USB-C PD chargers, and as a result, it works with all USB-C PD chargers and power banks we’ve tested. However, the charging speed varies from charger to charger depending on the power rate they can supply.

18W USB-C PD chargers can only charge your laptop while sleeping, idle, or at a low screen brightness. For average usage, 30W USB-C PD chargers will be good enough for office tasks and 50% screen brightness. For fast charging and more intense workloads, 45W and 65W USB-C PD chargers will be a great option if you don’t mind carrying a bigger charger.

Here are our tested chargers:

  • Google Pixel 1, 2 Charger: rated at 18W (5V/3A, 9V/2A).
  • Apple iPhone 11 Pro Charger: rated at 18W (5V/3A, 9V/2A).
  • Anker PowerPort Speed PD 30: rated at 30W (5V/3A, 9V/2A, 15V/2A, 20V/1.5A)
  • Anker PowerPort Atom PD1: rated at 30W (5V/3A, 9V/2A, 15V/2A, 20V/1.5A)
  • ZMI Turbo USB-C PD: rated at 45W (5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/2.25A)
  • REMAX 10,000mAh RPP-105 Power Bank (USB-C PD port): rated at 18W (5V/3A, 9V/2A, 12V/1.5A).
  • MI 20,000mAh PLM07ZM Power Bank (USB-C PD port): rated at 45W (5V/2.4A, 9V/3A, 12V/3A, 15V/3A, 20V/2A).