Hello,
when the tablet was in the charger with 1000 mAh and my GF was playing plant vs zombies 2, it was not enough and was dead in 2 hours. So I put there the official charger 1500 mAh but then still it was not enough and was dead again.
Right now I tried to turn off the Location, Wi-Fi and she is playing. But is this normal??? Jesus you should be able to play with all the functions turned on and in the charger, not???
Edit: so it was emptied again even with everything off...
Edit2: i will try the origin cable because I used a different one
Stirius said:
Hello,
when the tablet was in the charger with 1000 mAh and my GF was playing plant vs zombies 2, it was not enough and was dead in 2 hours. So I put there the official charger 1500 mAh but then still it was not enough and was dead again.
Right now I tried to turn off the Location, Wi-Fi and she is playing. But is this normal??? Jesus you should be able to play with all the functions turned on and in the charger, not???
Edit: so it was emptied again even with everything off...
Edit2: i will try the origin cable because I used a different one
Click to expand...
Click to collapse
Did it show the charging icon while she was playing the game? I'm curious if it might be plugged but not recognizing that it should be drawing power from the charger...
Because charging cables are differently wired, you MUST either use the original cable or a cable which is definitely known to have the same wiring as the original one.
hasenbein1966 said:
Because charging cables are differently wired, you MUST either use the original cable or a cable which is definitely known to have the same wiring as the original one.
Click to expand...
Click to collapse
Differently wired how? I didn't realize there were wiring differences, please elaborate if you can, feel free to get technical.
I tried plugging my Z2 Tablet into a USB cable from a powered hub (computer off though), which I've used to charge my phone and my Kindle, and I know it wouldn't have much power, but it wouldn't charge at all, no charging icon, nothing. I've had no trouble charging it with a dedicated charger though.
~Troop
So yes,
1. the charging icon is there
2. I even logged the history and during playing the plant vs zombies 2, the power is oscilating around +- the same level but still going down slowly as a trend
3. I tried today to get the power back to 25% and now I am charging it. I have the battery widget where it shows getting mA about 390 to 890 maximum. But even it is the original charger, original cable and the charger is 1500 mA it seems that the maximum level is 890???
Can someone else try Batter monitor widget what they get from it???
Edit:
It sucks. It announced even today DURING charging from the original charger and cable that the charging is not strong enough. Wtf?
Edit2:
Here they say it is charged under 3 hours. Not my case :-/ http://www.digitalversus.com/tablet/sony-xperia-z2-tablet-p19609/test.html
Ha, that is really funny. I am from the Czech Republic and called the Sony support. They forwarded me to Xperia support. At Xperia support the girl said that she cannot provide me exact information because official release date here is 8th of April so she doesnt have the manuals etc.
Then my type is 511E3 which she again was absolutely no aware what is the type because I should have 621 or maybe 521 but not 511.
So I can try the support line next week with the question how many mA should go to the tablet during charging.
But what she said was also that the charging time could be up to 6:20. But more than 6 hours? Maybe it was about the Z1 model? And also told me that playing games with the charger will still result in draining the battery.
I need some other guys here who can test it with playing some games and check the mA during charging...
I don't have a Z2, but just wanted to mention that cnet saw the same (no charge while playing) in their review: "[..] the tablet lost power even when it was plugged in to the mains" http://www.cnet.com/products/sony-xperia-z2-tablet/2/.
I never experienced any of this. There's probably a problem with your unit.
zpon said:
I don't have a Z2, but just wanted to mention that cnet saw the same (no charge while playing) in their review: "[..] the tablet lost power even when it was plugged in to the mains" http://www.cnet.com/products/sony-xperia-z2-tablet/2/.
Click to expand...
Click to collapse
bbarou said:
I never experienced any of this. There's probably a problem with your unit.
Click to expand...
Click to collapse
And have you tried to charge it during heavy playing of some game? Which game, how long?
Can you test how much mA are you getting from the charger inside the tablet (battery monitor widget can do this)
I tried it yesterday playing "The Cave" for about 1 hour. Tablet was charging using a four port no name charger and a different cable the that the one provided.
I did not really check for anything , I just noticed the tablet got mildly hot.
I did not measure the current while playing, but I did earlier this week-end though.
I tested 3 chargers plus the provided one. A Galaxy S III charger, An ASUS TF300 and the 4-port no-name I used yesterday.
If I recall correctly I got around 0.9A from the GS3 and original charger and around 1.2A from the TF300 and 4-port ones.
I do some more thorough testing and let you know. I use a device on the charger output to measure how much current is coming through.
How long do you guys charge the tablet? I started with about 19% and to full 100% it was like 7-8 hours. It was turned on without wifi (stamina mode). I will try to charge it while turned off but still it is strange...
I dont know. Battery life is ok but the charging sucks for me. Any ideas if it is just me?
Stirius said:
How long do you guys charge the tablet? I started with about 19% and to full 100% it was like 7-8 hours. It was turned on without wifi (stamina mode). I will try to charge it while turned off but still it is strange...
I dont know. Battery life is ok but the charging sucks for me. Any ideas if it is just me?
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Click to collapse
Yawn... Please use the charger and the cable which come with the device (which I bet my grandma on you didn't)! Other chargers or cable have either too low current or wrong wiring (which disables fast charging) or both.
The charging time over USB is 4-5 hours, like the first generation Tablet Z.
Yawn, yawn, if you took a look then you would read from this topic that I use original cable and original charger.
If the battery is 6600 mA and charger 1500 mA then the minimum for charging is 4,3 hours approximately. And as I said my maximum charging is 890 mA. So either something is taking 600 mA during the charging or the charger is bad or the cable is bad or I dont know.
But if it is in the stamina mode and still the maximum charging is 890 mA then something is weird.
I am asking now for about 5 times. Could somebody test during charging how many mA is going into the tablet? (You can use Battery Monitor Widget from google play).
Neither Xperia support is able to give me clear answer because the Tablet was not officially released here (which is funny, I have it).
Thank you.
Stirius said:
Yawn, yawn, if you took a look then you would read from this topic that I use original cable and original charger.
If the battery is 6600 mA and charger 1500 mA then the minimum for charging is 4,3 hours approximately. And as I said my maximum charging is 890 mA. So either something is taking 600 mA during the charging or the charger is bad or the cable is bad or I dont know.
But if it is in the stamina mode and still the maximum charging is 890 mA then something is weird.
I am asking now for about 5 times. Could somebody test during charging how many mA is going into the tablet? (You can use Battery Monitor Widget from google play).
Neither Xperia support is able to give me clear answer because the Tablet was not officially released here (which is funny, I have it).
Thank you.
Click to expand...
Click to collapse
Dude, then simply go and exchange the charger if it is faulty. No need to make long XDA threads out of that.
hasenbein1966 said:
Dude, then simply go and exchange the charger if it is faulty. No need to make long XDA threads out of that.
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Click to collapse
Its not about charger. Or maybe it is. I want to know exactly how many mA are going to the tablet during charging. Nobody was able to give me the answer.It could be faulty charger, faulty cable, messy apps in the tablet (which I doubt) or whatever.
And Sony support, Xperia support is not able to give me clear answer to this. And also another guy in a review had similar problem. If we are in a Z2 Tablet topic then I supose that this is the right place to ask such questions... Not?
You can't just do 6600 divided by 1500. You are losing current all over the place when charging. It will probably be at least 50% wastage in heat, resistance in the wires etc etc. Also, the charger may say it does 1500, but that is peak when it's brand new under perfect conditions and the internal components will age and become less efficient over time too.
If you are using the tablet for a game, it will be running the processor at max power and drawing lots of current and all the heat it generates from the cpu and the battery during this time is wasted energy don't forget. If you want to battery to charge, you will need a charger that provides enough current to power the tablet and another 1000ma or so on top of that to charge your battery.
I bet Sony will state somewhere that you can only use it for low power activities like watching videos while on the dock if you want the battery to charge.
Sent from my GT-P5110 using Tapatalk
My portable power meter seems broken so I cannot give you actual current draw measured in series. All I can do is paste output from Battery Monitor Widget.
All tests done with the official USB cable bundled with the tablet and screen ON at minimum brightness. Screenshots from Battery Monitor Widget.
Code:
Battery only: -721 mA (-10.79%/h)
Official charger (1500mAh): +719 mA (+10.76%/h)
PC USB3 port: -48 mA ( -0.71%/h)
No-name Chinese AndroidPC Charger
Model LA-520 (2000mAh): +1060 mA (+15.86%/h)
Energy Sistem K128 Charger (2100mAh): +960 mA (+14.37%/h)
brugobo said:
My portable power meter seems broken so I cannot give you actual current draw measured in series. All I can do is paste output from Battery Monitor Widget.
All tests done with the official USB cable bundled with the tablet and screen ON at minimum brightness. Screenshots from Battery Monitor Widget.
Code:
Battery only: -721 mA (-10.79%/h)
Official charger (1500mAh): +719 mA (+10.76%/h)
PC USB3 port: -48 mA ( -0.71%/h)
No-name Chinese AndroidPC Charger
Model LA-520 (2000mAh): +1060 mA (+15.86%/h)
Energy Sistem K128 Charger (2100mAh): +960 mA (+14.37%/h)
Click to expand...
Click to collapse
Thanks a lot!
So it just means that in general with the original charger you are able to get to 10-13% per hour. So in average usage 9 hours of charging, heh. I saw yesterday (have to check it at home) that I had also around 20% per hour.
But in general these figures are normal and the usage of a battery with a little bit more heavy tasks is not very good. And charging can take a LONG time. I tried to charge it while turned off and I think you can get there below 6 hours.
Stirius said:
Thanks a lot!
So it just means that in general with the original charger you are able to get to 10-13% per hour. So in average usage 9 hours of charging, heh. I saw yesterday (have to check it at home) that I had also around 20% per hour.
But in general these figures are normal and the usage of a battery with a little bit more heavy tasks is not very good. And charging can take a LONG time. I tried to charge it while turned off and I think you can get there below 6 hours.
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Click to collapse
mm.after read all of reply above, it is quite weird that only get 800mah while using 1500mah support charging cable? Maybe can try better quality of cable and also the power source, it is very crucial to get that. I have try some trial and error with different cables and charging with my galaxy s3, i find that with good quality of cable, i managed to get 1000mah max , but if using with cheap cable or power bank, i only managed to get 400-800mah. even after a long time using the original s3 cable, it will reduce to only 600mah. So my advice is try charging with different cable and find the best cable to charge ur device, if it is 1500mah supported, so i think it should be support to 1500mah. Thank you.
yonghong said:
mm.after read all of reply above, it is quite weird that only get 800mah while using 1500mah support charging cable? Maybe can try better quality of cable and also the power source, it is very crucial to get that. I have try some trial and error with different cables and charging with my galaxy s3, i find that with good quality of cable, i managed to get 1000mah max , but if using with cheap cable or power bank, i only managed to get 400-800mah. even after a long time using the original s3 cable, it will reduce to only 600mah. So my advice is try charging with different cable and find the best cable to charge ur device, if it is 1500mah supported, so i think it should be support to 1500mah. Thank you.
Click to expand...
Click to collapse
No, it is not weird at all since the tests were done with the screen turned ON, draining half the power.
The first line, battery only, tells you how much the screen and semi idle state is draining, with brightness at minimum. Cranking brightness up to maximum increased an extra 2.5% per hour drain if I recall correctly.
Charging with screen off would be about 20% per hour, or 5 hours to fully recharge. More or less in line with what people is reporting.
Code:
Battery only: -721 mA (-10.79%/h)
Official charger (1500mAh): +719 mA (+10.76%/h)
So, 721+719= 1440 (+21%/h), pretty close to the rated 1500 for the charger.
Hi,
Since few days my phone is charging very slowly. When I plug in the charger it shoot up to 400 or 900 milli ampere in AMPERE but then gradually fall down to 30 or 70 or 180 etc milli ampere and stays there. I have tried 2 Redmi Note 3 Original Chargers along with 3 different USB cables (two of them are from Mi). Out of 15-20 tries sometimes it charges by staying above 850 milli ampere but below 1000(never goes to 1800mA+ before the malfunction). I do not understand what the problem is and there is no solution to this problem available anywhere online. Recently Mi service centre changed the battery and charging point of the phone and the phone charged normally(IIRC) during the first day but malfunctioned from the second day. The ROM is MIUI 8.5.7.0.
Do you guys have any idea?
Regards,
hayabusa_ryu said:
Hi,
Since few days my phone is charging very slowly. When I plug in the charger it shoot up to 400 or 900 milli ampere in AMPERE but then gradually fall down to 30 or 70 or 180 etc milli ampere and stays there. I have tried 2 Redmi Note 3 Original Chargers along with 3 different USB cables (two of them are from Mi). Out of 15-20 tries sometimes it charges by staying above 850 milli ampere but below 1000(never goes to 1800mA+ before the malfunction). I do not understand what the problem is and there is no solution to this problem available anywhere online. Recently Mi service centre changed the battery and charging point of the phone and the phone charged normally(IIRC) during the first day but malfunctioned from the second day. The ROM is MIUI 8.5.7.0.
Do you guys have any idea?
Regards,
Click to expand...
Click to collapse
Have you tried those chargers on another smartphone?
How they perform?
How much time it is taking for full charge?
Sorry guys, I was busy and took my Phone to Service Center. They fixed it by replacing charging port again. Now my phone is charging normally.
Thank you both of you for showing interest in this thread.
I had my redmi note 4 working fluently for months, but then (after a certain update I guess) the battery suddenly took hours and hours to charge, I left for 12 hours on charger to experiment. It doesn't go higher than 91% and the mA (measured by Ampere app) is super low. I am on MIUI version 9.5.4, and android 7.0.
I charge it with the stock adapter and cable the that came with it. I tried different ones, same results, tried calibrating the battery, didn't help either. I'm pretty confident it's a software issue though.. and I'm super frustrated! (The readings from Ampere app are weird usually)
Thanks in advance
Steven_Albert55 said:
I had my redmi note 4 working fluently for months, but then (after a certain update I guess) the battery suddenly took hours and hours to charge, I left for 12 hours on charger to experiment. It doesn't go higher than 91% and the mA (measured by Ampere app) is super low. I am on MIUI version 9.5.4, and android 7.0.
I charge it with the stock adapter and cable the that came with it. I tried different ones, same results, tried calibrating the battery, didn't help either. I'm pretty confident it's a software issue though.. and I'm super frustrated! (The readings from Ampere app are weird usually)
Thanks in advance
Click to expand...
Click to collapse
if you are rooted. try switching back to an older version of miui
Check with custom ROMs
Guys recently i just noticed my device charging slower tham usual with the stock charger as well as other qc 3 certified devices and it also dsnt show the quick charge logo in the notification drawer!!!
Iam in 9.6.25 global rom can any body confirm if its a rom issue or my specific issue
vichucoolics said:
Guys recently i just noticed my device charging slower tham usual with the stock charger as well as other qc 3 certified devices and it also dsnt show the quick charge logo in the notification drawer!!!
Iam in 9.6.25 global rom can any body confirm if its a rom issue or my specific issue
Click to expand...
Click to collapse
download amps app and check current rating feed to your phone, fast charge > 2500 mA, if lower, try change your charger.
vichucoolics said:
Guys recently i just noticed my device charging slower tham usual with the stock charger as well as other qc 3 certified devices and it also dsnt show the quick charge logo in the notification drawer!!!
Iam in 9.6.25 global rom can any body confirm if its a rom issue or my specific issue
Click to expand...
Click to collapse
After the update mine also shows 3hr's to charge and slowly charging. I brought the phone 10 days back and updated to this 9.6.25 a week and facing this problem.
Have no problem at all with Poco f1 Miui 9.6.25. Charging time is around 1hr 45 to 2 hrs if not mistaken.
izharie said:
download amps app and check current rating feed to your phone, fast charge > 2500 mA, if lower, try change your charger.
Click to expand...
Click to collapse
Ive already tried it it shows almost 1450 ma
And ive tried with different cable ... different charger and even qc3 power bank no luck so far could it be a hardware issue in my phone?
vichucoolics said:
Ive already tried it it shows almost 1450 ma
And ive tried with different cable ... different charger and even qc3 power bank no luck so far could it be a hardware issue in my phone?
Click to expand...
Click to collapse
Try to charge below 50% from current battery level.my stock charger rating 5V 2.5A..can get around 2.2A reading from app.
Its starts slower then it gets faster , from 10% to 100 % in under 2h , so its working properly.
vichucoolics said:
Guys recently i just noticed my device charging slower tham usual with the stock charger as well as other qc 3 certified devices and it also dsnt show the quick charge logo in the notification drawer!!!
Iam in 9.6.25 global rom can any body confirm if its a rom issue or my specific issue
Click to expand...
Click to collapse
Having the same issue, plz help regarding the same
Buncy said:
Having the same issue, plz help regarding the same
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Click to collapse
Don't worry its just a software issue I just flashed the miui 10 beta Rom and now everything is fine it shows the QC logo also
Me too facing the issue. In the screenshot, charging at 18% and showing 920 mAh
Me too facing the same issue and i am on Miui 9.6.25 as well.
I just had a chance to check it, as I recently upgraded to 9.6.25. Well, no changes for me - there is QC icon next to the battery and Ampere shows current reaching 2900 mA.
katoda_ltd said:
I just had a chance to check it, as I recently upgraded to 9.6.25. Well, no changes for me - there is QC icon next to the battery and Ampere shows current reaching 2900 mA.
Click to expand...
Click to collapse
Can you upload a screenshot of ampere while charging
Here you are.
Buncy said:
Can you upload a screenshot of ampere while charging
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Click to collapse
Please check it out
You guys don't use the search function on the thread and just keep on making new threads about the same issue.
It has been well documented now that the charging slows due to thermal throttling. The hotter the phone the slower the charging. If anyone wants to test this, charge your phone for 5 mins before an air conditioner and measure the charging speed using the app called 'Amps'.
You should see the charging speed at around 2700-2800mah provided your phone temperature is quite low.
Otherwise, take a chilled watter bottle from your fridge and pour it generously on a towel. Now place your phone on that towel and charge you phone. As soon as the temperature starts falling to around 32-34 degree celsius, the charging speed will increase.
This is built in safety feature. The charging slows when the battery temperature is around 36-37 degree celsius as per my observations.
Cool you battery to around 30 degrees using any method you can and then check the charging speed.
Not your charger, not your cable...its mostly the charging algorithm with built in thermal thresholds which is at play here.
DO TELL ME YOUR TEST RESULTS.
I just found this thread - I have similar problem but it's rather not connected with temperature.
After one of software updates I discovered that quick charge is not working. Maybe it wasn't connected with update but this is how I see this.
I was waiting for software updates and hoping that they will fix my problem but nothing was changing.
Recently I decided that maybe factory reset will help, but unfortunately no.
After this reset I was checking many chargers and it appeared that with laptop charger (with USB C output) quick charge works! I was checking parameters in application 'ampere' and there is information that this charger is AC, and rest is USB. So it looks like QC works but....
Please help, how can I make quick charge works again via standard quick charge charger.
Guys recently i just noticed my device charging slower tham usual with the stock charger as well as other qc
Iam in 11.0.5.0 global rom can any body confirm if its a rom issue or my specific issue
I want to clarify that my Poco on fully stock 11.05 charges as fast as any previous version of MIUI.
I take care of my battery. Charge till 80 and never let or go below 20.
If you can maintain the variables, and it still charges slow then you have issues with battery IC or the battery itself.
The highest I got without ceiling fan and without ac is 1590 mA. Maybe I got higher other times but I installed the app just for this post.
Don't rely on software reporting.
Do you have a multimeter?
Ambient temperature plays a HUGE role when it comes to battery, even if it's 1 degree more or less.