Messing with Phone quickchargers

I found myself bored and doing stupid crap again with my Galaxy S7


This is the same charger from the brand I clever it is a QC 3.0 charger although from what I understand the Galaxy S7 does not actually support QC 3.0

I tested by plugging phone into the top port and the bottom part as well as software limiting on both ports

I pulled out my Kill A Watt to see how much power charging a cell phone consumes with a fast charging mode versus a normal charging mode


the fast charger sucks up LEss power from the wall when the phone screen is active

but still the phone claims that it will charge the phone faster than a standard charger mode

When the screen of the phone turns off
the fast charger mode shoots up to 17 Watts
Compared to the 9 of a standard charger mode

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Very interesting.

I would prefer for it to be the other way tho.

If I disable fast-charging in software from the settings of the phone using the fast charging plug with the screen off it says it pulls 3.2 Watts

If I use my wireless quick charger with the screen off
the kilowatt says either 8 or 11 Watts

it can't seem to make up its mind

if I turn off the screen and do not touch the phone it's it's at about 11

but if I move the phone physically without turning on the screen it bounces back down to 8 and stays there
This could be just quick charge and it changing the levels of charge due to battery temperature and whatnot

Greenpeace will be happy to see 3.2 watts.

For the wireless quick charging thing. Thats just crazy. Maybe some sort of connectivity problem? Like bad placement. Idk....

If I ever so slowly move the phone around the coils on the quick charger Wireless unit

I can get the kilowatt wattage display all the way up to 13.2 Watts

I don't know if this is a faster charge due to better placement
or
more inefficiency due to bad placement....

If I completely power the phone down the phone will reboot to that little screen that shows the battery charging on the fast charger that consumes 17 Watts
interesting because the screen is active showing that little battery icon

messing with the phone settings,
it looks like having the "always on display" makes no difference in charging rate consumption, so long as you have the phone screen off (and by off i mean not on the main screen, the always on screen mode thing)

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It would appear that the phone limits the amount of power flowing through it so that when the phone consumes more power (I think there are some things that run when the phone's gyroscopes sense motion) it limits the charging.

Very interesting. Could even be applicable for faster charging if you get some clear results.

Yeah, maybe it could allow more power if the phone was hogging up the cpu
17w when screen off
25 when benchmarking or something

Yeah


Not sure if random internet forum info is accurate

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It appears that the voltage or excuse me the Watts being consumed by the charger slowly tapers itself down as the phone battery reaches 100% but even at 100% my kill-a-watt still reports 3.3 Watts consumption
As kow as 2.3w

Interesting! Does it dip when the screen is one because the display is using 8 watts?

Actually no it's a rather constant amount of energy but picks up when the screen is off

The charger appears to go to the lowest state of throughput when the screen is active

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