Charging limitation current

[RyTek]

There's a guy who owns a single sim variant and got over 2000mA charge rate, while I own a dual sim one and only got 1556mA at maximum. Both we use QC 2.0 charger (mine has 18W 9V-2A) but we don't share the same result. Can you explain for me, Sony? Is dual sim the problem? Left side is E6653 and right side is mine.

[adamlee2014]

By looking at the pictures I can see temperature differences your friends was on 31.2 and yours between 35 and 38 maybe it's to prevent the device from getting too hot. I could be wrong but I think the charge rate may depend on temperatures

[_alexdon_]

@RyTek It's the opposite actually, left is his. Do you use the exact same charger? There might be some 3rd party app that could limit your current, you also need to consider that as the device heats up, the current is limited to avoid any damage to the battery and device.

[NeoBeum]

Just wanted to add that if there's not enough current via USB on PC, the device may appear to charge but never connect for data

(Intermittent)

Edit this was on 5.1, not Marshmallow. So with the new Marshmallow update allowing users to select what type of connectivity they want - there may be more/less similar bugs

[RyTek]

@92 My device even didn't go over 1.5A when it's cool (below 30 celcius), and the throttle threshold of battery is about 50-55 celcius so at that temperature the device should get the maximum charge rate

@alexdon My fail, I editted, IDK what charger did he use but it should be one with QC 2.0 certificated and mine too, and both of them give 18W.

[Bhonder]

Which application is that. Seems useful, in a geeky way. And because I am a geeky one...

[_alexdon_]

@Bhonder It's called Ampere. I have used it too.

@RyTek There are many QC 2.0 certified adapter, but not sure if all of them really give what we expect. I have one (from Itian) and I paid about 12 euros for it, I did get 2.2-2.3 A in output but it also heats up the device.

[RyTek]

I tested with Sony UCH10 as well, it also gave the same max charge rate.

[_alexdon_]

@RyTek I was about to suggest you safe mode but that way you can't measure the current with an app.

[RyTek]

My charger can give 5V-2A at regular charge (blue led) and 9V-2A at QC 2.0 (green led) so the limitation should be caused by kernel setting, both LP and MM share the same issue.