Mix 2S Global ROM (9.5.4.0) Fast Charging Issue - Xiaomi Mi Mix 2S Questions & Answers

I'm not getting fast charging speed rate on the latest global ROM. anyone experiencing this?
Fast wireless charging gives me 10-300mA
Fast wired charging goes up to 980mA
Sent from my Mi MIX 2S using Tapatalk

Have you tried with a different USB cable?

How long does it take to charge from letd say 10% to 100%?

I get 2300mah, highest I have seen until now(with the app ampere) was 3100mah but charging speed is resulted to heat, if your device is above 30°C you won't get 3000mah (at least that what I could find out until now)

I see ~830mA wireless charging with phone on normally. I haven't been paying much attention to wired speed because fast charging is definitely working.

Related

Quick charge not working.

Hi. Posted this in a couple other places already. Got my XZ yesterday and it doesn't come with a quick charger. Fine, I bought some. None of them are working though.
Tried Anker and Aukey, and also the charger from my wife's HTC 10. Any ideas why this isn't working?
Everything I've read (the specs on the official site) say that this phone supports Quick Charge. I've tested the HTC 10 in all 3 chargers and it quick charges so I know it's not them.
Tried it with Battery Care off and nothing. When Battery Care is on all I get is messages saying "Battery Care has crashed" or something. Pretty annoying, considering I just dropped about £50 on new chargers!
fatguy666 said:
Hi. Posted this in a couple other places already. Got my XZ yesterday and it doesn't come with a quick charger. Fine, I bought some. None of them are working though.
Tried Anker and Aukey, and also the charger from my wife's HTC 10. Any ideas why this isn't working?
Everything I've read (the specs on the official site) say that this phone supports Quick Charge. I've tested the HTC 10 in all 3 chargers and it quick charges so I know it's not them.
Tried it with Battery Care off and nothing. When Battery Care is on all I get is messages saying "Battery Care has crashed" or something. Pretty annoying, considering I just dropped about £50 on new chargers!
Click to expand...
Click to collapse
Sony enable Quick Charge only when battery is under 60% for safety reason.
AndroPlus said:
Sony enable Quick Charge only when battery is under 60% for safety reason.
Click to expand...
Click to collapse
Battery was at 15% dude.
When it's quick charging, does it give any indication? I know the HTC 10 says "charging rapidly".
fatguy666 said:
Battery was at 15% dude.
When it's quick charging, does it give any indication? I know the HTC 10 says "charging rapidly".
Click to expand...
Click to collapse
There is no indication.
You can check with Ampere.
https://play.google.com/store/apps/details?id=com.gombosdev.ampere
This app doesn't show exact charging current, but if it shows over 2,000 mAh (wait about 30 sec) quick charge is working.
Please note there are heat throttling, so quick charge is disabled when device is really hot.
I bought Aukey QC 3.0 and when the phone is over 85%, I get 680ma; below that I get higher rates over 1000ma.
UPDATE: I put my phone in charge at 50% and I got over 2000ma but when it reached 80%, it changed to 600ma. So it supports quick charging but when it reaches to almost full, it activate battery optimization for the safety of the battery.
confirming above, I also came from a HTC10 and was expecting to see a "charging rapidly" message. My XZ also doesnt display this.
When using GSAM, I can see the rate of change of charge, when connected to a QC2.0 or a QC 3.0 charger and at low battery capacity, I can see rate of change of up to 60% per hour, this is in line with my other QC phones. It does appear that Sony throttles charge speeds more than HTC does above 80%, but I can understand that, and it doesnt bother me too much.
Yeah, I've had some time to look at Ampere and would conclude the same.
My XZ on the Anker charger is peaking about 2190ma when charging at a low percent, whereas my Z2 on the old standard charger peaks around 730ma - this is after 5 minutes for both.
Was just a little freaked that it didn't indicate that it was "charging rapidly". Guessing the throttling will also help battery life, although it was a bit of a sore one seeing the wife's HTC 10 peak around 2900ma.
Anyone know if the Galaxy s7 chargers will output 3.0 with the international models??
Did you buy a used phone? My XZ came with an OEM SONY QC 3.0 rated charger. Using Gsam battery monitor pro I get readings up to 2200+ mAh charge rates between 30 and 60% battery. That is generally considered to be the safest range to fast charge lithium ion batteries (fast charge generally being a charge rate higher than .5C, which for this phone is 1450mAh). I don't get any indication it is fast charging, it just does it. QC 3.0 applies a varying voltage and amperage throughout the charge, offering more gradual and "healthy" charge curves as opposed to conventional or QC 2.0 charging. Basically your QC 3.0 charger charges the battery as fast as is possible while not sacrificing battery life (say due to excess heat or overcharging).
Hi, I have recently bought a new XZ & bought the original Sony charger UCH12W at same time. The hour of charged is need approx. 2 hours from the battery percentage 30% to 100%. Is that any one face this ? Or maybe is my charger or either my phone problem.
Try this
Use the the detect usb in the notification keys before connecting the charger,, this will solve the fast recharging issues,, even if phone will recognice charging after few seconds,, charging will be fast and normal
Lt.Oscar said:
Use the the detect usb in the notification keys before connecting the charger,, this will solve the fast recharging issues,, even if phone will recognice charging after few seconds,, charging will be fast and normal
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Click to collapse
this solves the problem, its sad that you need to do this first and its not automatically fast charging .
Still buggy
Its the only method that i find it working,,, but still there is a chance that phone still wont charge fast so keep an eye on the charging process,, and its temporary solution till next update for soctware as i hope its a bug in android 7

XZ's battery charge time is 2.5 hour from 25%, is it normal?

XZ's battery charge time is 2.5 hour from 25%, is it normal?
I turned on battery care mode.
Battery care is turned on?
Mine also came with a slow charger. When I plug it to my portable battery, it can still be pretty fast (and hot...)
With stock UCH 12 charger it takes my phone about 1,5h to get fully charge. 30min to 60% and 1h for the rest. It seems like Sony disabled any type of QuickCharge above 60% to prevent battery damage and it doesnt matter what type of charger you would use alter that - it will stick to 1000mA all the time.
Two things:
1) are you using QuickCharge charger?
2) do you or any of your apps use phone while charging?
Any of those would prolong charging time.
L3RAT said:
With stock UCH 12 charger it takes my phone about 1,5h to get fully charge. 30min to 60% and 1h for the rest. It seems like Sony disabled any type of QuickCharge above 60% to prevent battery damage and it doesnt matter what type of charger you would use alter that - it will stick to 1000mA all the time.
Two things:
1) are you using QuickCharge charger?
2) do you or any of your apps use phone while charging?
Any of those would prolong charging time.
Click to expand...
Click to collapse
Please see my answer are listed below and thanks
1) are you using QuickCharge charger?
Yep.
The charger is UCH12.
2) do you or any of your apps use phone while charging?
No.
I turned off the phone during charging.
jeffreywen said:
Please see my answer are listed below and thanks
1) are you using QuickCharge charger?
Yep.
The charger is UCH12.
2) do you or any of your apps use phone while charging?
No.
I turned off the phone during charging.
Click to expand...
Click to collapse
Try to keep it turned on then. I guess Sony could set offline charging to minimal settings and control QuickCharge with software. Try "Ampere" app to check how many ampers are you getting while charging (download from play store, no root required). It should oscillate from 700mA to 2500mA. If not (e.g. stuck at 1000mA) it means your charger could be defective and should be exchange for new one.
man. I got 75% in an hour while the phone was off :/ using the same charger as yours so there must be a problem, try to change the cable
Guys does anyone know if the USB type-C cable which comes with the non-fast charger is 3.0 Quick Charge compatible?? I've ordered a Anker 3.0 Quick Charge charger just wanted to make sure the cable is.
My case is even worse, tales 3 hours to charge from 13% to 97%
I am even using the newest Sony 3A usb c to c quick charger!
What the hell..
XZ support QC 3.0 so it should be able to charge from 0%(theoretically) up to 100% 1h40-1h50 using a QC 3.0.
During my few weeks i've had this phone (recived with UCH20 charger) i tried to test phone's ability to charge quickly and failed it took usually 2-2h20 min with original charger. I've ordered chinese charger (sony's UCH12W is 4 times more expensive, even samsungs and htc chargers are much more cheaper).
During tests (using ampre) i tried to start charging when battery dropped to 10%. I used 2 charges original UCH20,Tronsmart WC1T and 3 USB-C cables 1x original, 1x unknown chinese, 1x tronsmart(original included with a charger).
Conclusion:
UCH20 is slower, Ampere won't show more than 1560mA 10-60/70% then something around 1100mA and 780 or less 90-100%
WC1T is faster, 10-60% 2220mA (or less depends on throttling/temperature) then about 1500mA to 90% and less than 1000mA (usually 500-800mA) 90-100%
Tested with onvo adaptive charging on, stamina off, wifi on, brightness auto (0-40%), there was no difference betwen cables only unknown chinese cable was slightly slower but that is only my opinion. Battery temperature oscylated between 26-37/38°C(Ampere)
This phone will only fast charge up to 60/70% then it slows down a bit and last 10% is slow, it should preserve battery health yet still allow you to charge it quickly when in a hurry so u can use it for another few hours until you'll get back home and plug it for a night.
bucho144 said:
XZ support QC 3.0 so it should be able to charge from 0%(theoretically) up to 100% 1h40-1h50 using a QC 3.0.
During my few weeks i've had this phone (recived with UCH20 charger) i tried to test phone's ability to charge quickly and failed it took usually 2-2h20 min with original charger. I've ordered chinese charger (sony's UCH12W is 4 times more expensive, even samsungs and htc chargers are much more cheaper).
During tests (using ampre) i tried to start charging when battery dropped to 10%. I used 2 charges original UCH20,Tronsmart WC1T and 3 USB-C cables 1x original, 1x unknown chinese, 1x tronsmart(original included with a charger).
Conclusion:
UCH20 is slower, Ampere won't show more than 1560mA 10-60/70% then something around 1100mA and 780 or less 90-100%
WC1T is faster, 10-60% 2220mA (or less depends on throttling/temperature) then about 1500mA to 90% and less than 1000mA (usually 500-800mA) 90-100%
Tested with onvo adaptive charging on, stamina off, wifi on, brightness auto (0-40%), there was no difference betwen cables only unknown chinese cable was slightly slower but that is only my opinion. Battery temperature oscylated between 26-37/38°C(Ampere)
This phone will only fast charge up to 60/70% then it slows down a bit and last 10% is slow, it should preserve battery health yet still allow you to charge it quickly when in a hurry so u can use it for another few hours until you'll get back home and plug it for a night.
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Click to collapse
Good post, thanks for sharing,
I ve recently brought Anker PowerPort+1 charger QC3.0 compatible and used stock Sony cable and max output I got was 2180mA max using Ampere too.. What my question is now what should the XZ be drawing max? near 3000mA?? Battery care Off.
Ive ordered PortaPow 20AWG cable it states its also QC3.0 compatible so lets see how much it get and if it makes any difference to the charge times.
I will post my results in the next 2 days.

Is it safe to charge the device at low charging currents?

Hello everyone!
I recently purchased a Mi note 5 pro that comes with a 5V,2A charger out of the box.
While using it I realised the phone started warming up while charging with it- The phone reached a temperature of 42 deg C (well, the device got significantly warm).
Concerned, I tried out an old Samsung charger (5V,0.7A) with my Mi device and realised the charging temperature was much less (35 deg C) (here, the device remained cool).
Well, I wanted to know:
- Is it safe to charge the Li-ion battery at low charging currents (voltage is constant at 5V) ?
- Is it okay to use a different manufacturer's charger with my device (even if the charger is a genuine one)?
Also,
-I don't have a problem with longer charging times
-I frequently keep the device plugged in and maintain the charge between 20% and 80% (and full charge cycle once or twice a month)
-I am a heavy user but I avoid using the device while it is plugged in
-AccuBattery was the app I used for battery measurements
In the end I'm just curious to know how to prolong the battery life of my device and I'd really appreciate the help.
Thank you
1. Yes it's absolutely fine to charge at a low charging current. It is in fact better for the battery to charge it at a low current.
2. Yes, it's also absolutely fine to charge with different chargers, the quality of the charger is what is important.
willhemmens said:
1. Yes it's absolutely fine to charge at a low charging current. It is in fact better for the battery to charge it at a low current.
2. Yes, it's also absolutely fine to charge with different chargers, the quality of the charger is what is important.
Click to expand...
Click to collapse
Thank you

Cannot get Fast charging (15w) but can get Super Fast Charging

I have a note 20u 5g SM-N9860. While tinkering with charging options, I turned on Fast charging and disabled other options. However, when I connect stock charger and cable, it stays on CABLE CHARGING. When I turn on Super Fast Charging, it charges in Super Fast Charging mode.
Is anyone having this problem of not getting Fast Charging mode to work?
I think it depends on the charger. I don't think a super fast charger will just do fast charging. Super fast or just regular. At least that's been my experience.
Using my pixel chargers on the note it does just do fast charging, because that's all the charger is capable of.
There is an option to enable fast charging. There are two different options for fast charging and Super fast charging. Most probably that option is turned off. It is off by default.
I've experienced the same thing. You need to understand electrical currents and how the plug you putting your adaptor inside. To make it simple, use a charger that has usb a to usb c (old ones) for fast charging (samsung branded in my experience). This phone was designed to handle super fast charging anyway, why not use it?
None of the charge options make any sense to me on the N20U. Example , using an old samsung 18W brick charger. On slow charging it peaks to over 2000mA or over , on fast charging it peaks to around 2800mA. Using Accubattery to see value whilst charging. Using a 10W apple brick charger it charges are around 1000mA however.
This behavior was present across three different N20U devices.
Easiest way is to look at the charge indicator.
Around 1% a minute is snail charging.
Around 2% a minute is fast charging.

Resolved: SM-N986U max 15W charging

Using the charger that came with the phone, the maximum charging I get is 15W. I tried a different cable and bought a different PPS charger, but still my charging maxes out at 15W. I was expecting to see 25W.
Has anyone else seen this issue? I have confirmed that both fast and super fast charging options are enabled. It does say that it is super fast charging when plugged in.
Thanks.
measured how?
Using one of the USB Digital Testers that is in the shape of a cross and is sold on Amazon.
I believe I figured out the issue. My phone was at 80% or something high when I measured the charging rate. So I think it was being throttled. I tried it again when the battery was much lower, and it was just about 25W.

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