0

Each of my USB-C enabled devices charge via the plug. Each came with a USB-C chargerbut my phone does not need much power so the power adapter is small.

My laptop needs a lot of power and its charger is more powerful.

What happens if I mess up and I plug my phone in the PC charger? Does the phone blow up?

And what happens if I try to charge my PC with my phone charger will it catch fire?

Arjan
  • 30,974
  • 14
  • 75
  • 112
Development 4.0
  • 137
  • 1
  • 4

2 Answers2

2

Your devices will charge and no damage will occur.

If you plug a charger in which has a lower current rating the devices will charge slower.

If you plug a charger in which has a higher current rating the devices will charge at their designated speed.

USB-C negotiates the desired power delivery profile, starting off at 5 volts, 2 amps.

davidgo
  • 68,623
  • 13
  • 106
  • 163
  • The last sentence is highly inaccurate. USB-C "negotiates" only if the port implements Power Delivery protocol. Not all Type-C ports have it. As a matter of fact, very few as of today. A standard Type-C provider (charger or host port) ADVERTISE their capability my means of value of a simple pull-up resistor on a CC pin, and the standard set has three options, default 500/900 mA, 1.5 A, and 3 A. The concept of "power delivery profile" is from PD specifications, which are independent of Type-C connector specification. – Ale..chenski Jun 10 '17 at 07:18
1

Any pair of USB-C device and charger will start at normal-level charging, and some higher-power chargers will negotiate higher-level charging if the device can handle it. It's probably safe, but will be slower charging.

Christopher Hostage
  • 5,649
  • 3
  • 21
  • 39