Fastest USB-C Charger Comparison

Analyze the text on the charging blocks in the photo and determine which charger will charge my phone the fastest. Rank them from fastest to slowest.

If any text in the photo is unreadable, use the details below.

Chargers Listed

1. Top left

   • 12W

   • Input: 100–240V

   • Output: 5.2V

1. Left middle

   • Total power: 20W

   • Input: 100–240V, 50/60Hz

   • USB-C output: 5V / 12V

   • USB-A output: 5V / 9V = 2A / 12V

1. Left bottom

   • 70W USB-C Power Adapter

1. Middle

   • 20W PD Charger

   • Input: AC 100–240V, 50–60Hz, 0.5A max

   • Output:

     • DC 5V / 3A

     • 9V / 2.22A

     • 12V / 1.67A

   • PPS:

     • 3.3–5.9V / 3A

     • 3.3–11V / 2.2A

   • Maximum output: 20W

1. Top right

   • Input: 100–240V, 50/60Hz, 0.5A

   • Output:

     • 5V / 2A

     • 9V / 2A

1. Bottom right

   • 30W USB-C Power Adapter

   • Listed outputs:

     • 30W

     • 27W

     • 15W

   • Input: 100–240V, 0.75A, 50–60Hz

   • USB-PD output:

     • 20V / 1.5A

     • 15V / unspecified amps

Fastest to Slowest

1. Left bottom — 70W USB-C Power Adapter

1. Bottom right — 30W USB-C Power Adapter

1. Left middle — 20W charger

1. Middle — 20W PD Charger

1. Top right — 18W max

   • 9V / 2A = 18W

1. Top left — 12W charger