Index of tested USB power supplies/chargers (Wall mount)

Select index: All   1-2 port 2.4A   Min. 3 port 4A   Auto   Quick Charge   Plugable   Loose cable   Wall mount   USB-C PD  

Image	Charger name	USB ports	Port current	Total current	Standard	Noise	Extra	Mains input	Safety	Year
	2USB inCharge PRO 55 12W	2	2.4	2.4	Auto	32/604	Mains output	Wall mount		2018
	LEORY Wall outlet	4	2.1	3.1	Apple 2.1 + DCP	30/997		Wall mount		2017
	inCharge 2USB Wall Power Outlet	2	2.1	2.6	Auto	19/648	Mains output	Wall mount		2017
	Hama Flush socket with two USB ports	2	2.1	2.1	DCP	25/268	Mains output	Wall mount		2017
	5V 2A Dual USB Port Wall Power Outlet KI09	2	1.6	1.6	DCP	21/173	Mains output	Wall mount		2017
	LK FUGA Stikkontakt 2pol med jord og USB	1	1	1	DCP	36/481	Mains output	Wall mount		2016

• Charger name: If the charger has brand name I will use this, for chargers without a brand name I will use something else.
• USB ports: How many usb ports the charger has.
• Port current: The maximum current that can be drawn from a single port. This is the tested value when it is lower than specified. USB connectors are not rated for more than 3A (This is for 5V output).
• PD current: In the PD (USB-C Power Delivery) list there is columns for currents at each voltage.
• Total current: Total current the charger can deliver when all ports are used at the same time at 5V output.
• Standard: What charger standard the usb outputs are coded for. When multiple standards are listed it will depend on port used.
  • Apple 0.5A: Not used anymore
  • Apple 1A: Not used anymore
  • Apple 2.1A: Charger can deliver 2.1A
  • Apple 2.4A: Charger can deliver 2.4A
  • DCP: USB defined standard for 1.5A and more.
  • QC: Quick Charger, makes it possible to increase voltage to 9V or 12V
  • PD: USB-C Power delivery, this can have voltages from 5 to 20V and current up to 5A at 20V
  • Auto: Port contains a chip to automatic select the best standard (Usual Samsung, Apple and DCP).
• Noise: The format is rms/pp, lower numbers are best. Values below 30/300 are good, 15/150 very good.
• Extra: Charger has some extra functions:
  • Active display: There is an indication when usb output draws current.
  • V & A display: The charger has build a usb voltmeter and ammeter.
  • Mains output: There are mains outputs together with the usb outputs.
  • Bluetooth audio output: A bluetooth audio module is build in, this can be connected to some loudspeakers.
• Mains input: How is mains connected to the usb charger:
  • Loose cable: Charger has a socket for mains input, usual C5 and a loose cable.
  • Plugable: Charger plugs directly into mains outlet.
  • Flying lead: Charger has a attached main cable.
  • Wall mount: Charger is for wall mount like mains outlets and will often include a mains outlet.
  • External power supply: Charger do not have mains input but uses an external power supply.
• Safety: How safe is the charger. I cannot verify that the charger follows the safety standards, but I can sometimes see when it does not follow the standard.
• Year: The year I tested (published) the charger review.

Safety

	The isolation fails at 2830 volt, non safety capacitor or very low distances
	The isolation fails at 4242 volt
	Isolation distance a bit low, but it did not fail safety tests
	There is no failed safety checks in my test and inspection
	I have seen a passed safety test report (This happens very seldom)

Notes

How does a usb charger work?
USB power information