USB C Charger Testing

[OspreyO]

How do you check what power your getting from your USB charger on a MacBook air. If you use an App which App.

I have an Apple 30w and also third party 45w and 100w. I'd like to measure what I'm getting from them and how long it will take to charge with each.

 

[MacRS4]

Simplest way is probably a USB C charge cable with built in power monitor - I've a few of these for example that show the power consumption.

 

[Kainz]

Something like this should help. https://www.amazon.co.uk/YOJOCK-Capacity-Temperature-Voltmeter-Detector/dp/B0B99Z2GJK/

 

[BinnsY]

You can do this using system information built into the mac. Just search for / open system information, then click on power down the left hand side. You will get information a bit like the below;

AC Charger Information:

Connected: Yes
ID: 0x0000
Wattage (W): 57

(I'm currenly using an anker multi charger that should output 65w on the port its on, but I've got it going through a cheap usb c port replicator thats currently power a DVD drive ripping a disc so it makes sense that I'm loosing a few watts powering that).

 

[heman]

You can do this using system information built into the mac. Just search for / open system information, then click on power down the left hand side. You will get information a bit like the below;

AC Charger Information:

Connected: Yes
ID: 0x0000
Wattage (W): 57

(I'm currenly using an anker multi charger that should output 65w on the port its on, but I've got it going through a cheap usb c port replicator thats currently power a DVD drive ripping a disc so it makes sense that I'm loosing a few watts powering that).

Ripping a DVD, not heard that for years!

 

[BinnsY]

Ripping a DVD, not heard that for years!

To be fair it was a blu-ray so a little more modern at least

 

[heman]

To be fair it was a blu-ray so a little more modern at least

Ok, that brings it into the 21st century at least!