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Ralfi

macrumors 601
Original poster
Dec 22, 2016
4,374
3,101
Australia
Hey, I’ve just downloaded a charge monitoring App & have been testing some charging bricks connected directly to my devices & to a wireless charger.

Anyway, thought I’d see what the 2018 iPad Pro was pulling out of the brick it came with & another brick I’d purchased for iPhone/AirPods charging.

Now I’m not sure of the accuracy of this App, but is there any legitimacy in my below findings, where for battery levels below 80%, the iPad looks to be drawing more wattage (over 20w) than the bricks are rated at?

4785D3CF-D967-4945-8455-C2E5DE0467E2.png

The first test was with the battery above 80%, so it makes sense that the wattage is lower there, but I would’ve thought in its normal charge rate (below 80%) that I’d see something around 16-18w?

If anyone else is curious & wants to test their iPad Pros for comparison, I used an App called Watts Lite. But even they say to perform multiple tests as the Apps accuracy isn’t always there. So I may need to do a few more tests.

If anyone has another, more accurate App suggestion, let me know. Thanks.
 

doboy

macrumors 68040
Jul 6, 2007
3,777
2,958
I have a USB voltmeter connected to Apple’s 18W and highest I’ve seen with my 2020 iPad Pro is 8.95V @ 1.95A so close to 18W. I wouldn’t trust the values from the app as exact values.
 
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AutomaticApple

Suspended
Nov 28, 2018
7,401
3,378
Massachusetts
Hey, I’ve just downloaded a charge monitoring App & have been testing some charging bricks connected directly to my devices & to a wireless charger.

Anyway, thought I’d see what the 2018 iPad Pro was pulling out of the brick it came with & another brick I’d purchased for iPhone/AirPods charging.

Now I’m not sure of the accuracy of this App, but is there any legitimacy in my below findings, where for battery levels below 80%, the iPad looks to be drawing more wattage (over 20w) than the bricks are rated at?

View attachment 974045

The first test was with the battery above 80%, so it makes sense that the wattage is lower there, but I would’ve thought in its normal charge rate (below 80%) that I’d see something around 16-18w?

If anyone else is curious & wants to test their iPad Pros for comparison, I used an App called Watts Lite. But even they say to perform multiple tests as the Apps accuracy isn’t always there. So I may need to do a few more tests.

If anyone has another, more accurate App suggestion, let me know. Thanks.
Is the app reputable?
 
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