[Q] Uneven battery drain - Xperia Z2 Q&A, Help & Troubleshooting

Hey guys,
So I've been using my Z2 quite much in the past few days and I've noticed some kind of a strange pattern. After I plug my charger out, the battery percentage goes from 100 to 90 in like 20 minutes. It keeps dropping at this pace until it reaches around 40%. Then it slows down to about 3-4% in those same 20 minutes and basically keeps this pace until death. The usage is pretty much the same and I don't understand where this might be coming from. Is it possible that the battery is somehow uncalibrated?

To be honest I'm no expert with this topic, but I know with my old phone (Samsung Galaxy S3), battery calibration was a myth. People bought into it and played it up as if there was truth to it but in the end, it was all bs. For Sony devices I'm not sure. The one thing I may recommend (which might not even do a thing) is charge your phone to 100%. Then without unplugging the charger, load up the dialer app. Type *#*#SERVICE#*#* to access the service menu. From there, click on service info, then factory charging. Not sure if that resets any sort of battery info or anything but it's worth a shot.

as far as i know it calibrates on the hardware side
charging to 100% and then using normally till 0% and cycling this quite a few times will actualy balance out the battery in most xperias

Envious_Data said:
as far as i know it calibrates on the hardware side
charging to 100% and then using normally till 0% and cycling this quite a few times will actualy balance out the battery in most xperias
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Click to collapse
Yeah, I've heard this one, done it a few times right after I bought this phone

Koostis said:
Yeah, I've heard this one, done it a few times right after I bought this phone
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Click to collapse
Well android is android and it will out stupid its self rarely so sometimes rarely battery calibration will sort of fall off just a tiny bit.

Related

question about reconditioning battery

yesterday after flashing nero 5 i wanted to recondition, so while sleeping at night i charged my phone to 100, and now during the day time im trying to waste the battery, but during that i got caught up on adb and connected my charger, and left it there, now its back at 83% battery, does this mess up the reconditioning process? or do i have charge back to 100, then do it all over?
anyone? please lol
xriderx66 said:
anyone? please lol
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what you should do is drain it all the way untill you cant turn it on anymore and leave it chargin all night turned off, and when you wake up turn it on and let it charge untill its full again, then boot into recovery and wipe batt statt , and you should be good to go mine last about 20 hours after i did that
T.C.P said:
what you should do is drain it all the way untill you cant turn it on anymore and leave it chargin all night turned off, and when you wake up turn it on and let it charge untill its full again, then boot into recovery and wipe batt statt , and you should be good to go mine last about 20 hours after i did that
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I did just about the same with mine, minus the chargin all night turned off, and I am getting about 20-24 hours with mine, which is more than I need as I plug it in every night
cjggilbert said:
I did just about the same with mine, minus the chargin all night turned off, and I am getting about 20-24 hours with mine, which is more than I need as I plug it in every night
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me to im near a power source or computer all the time so
What you should do is keep letting it drain until 1% or so. I don't think you need to let it die completely. Charge to 100%. Boot into recovery and clear battery stats with the charger still plugged in. This is the important part. Then drain the battery and charge to full. Then you should be good to go.
question, after draining to about 1%, does the phone have to be off? and can i use the phone just a bit while its charging?
xriderx66 said:
question, after draining to about 1%, does the phone have to be off? and can i use the phone just a bit while its charging?
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The general consensus is that when you condition you should charge the phone while it's off. I don't know enough about battery chemistry to tell you why. Just do it to be safe
Battery "recondition", actually does not "recondition" the battery, it is a trick just to get more accuarte readings (that's the only reason you reset STATS)
The battery may not charge up to 100% and will never do, just following this procedure. It will just say it is @ 100% when you actually are @ 85 or 87, that's why the sudden "jump" you see.
Best way to try to get better readings is charging the battery till it says 100%, unplug it and plug it again a couple of times until it fully charges and follow the same procedure.
Once yo did this a few times, turn off phone, reboot in CWM (with the phone never unpluged) and clear battery stats. turn off phone and unplug,,,,
You will got at least more accurate readings
gagb1967 said:
Battery "recondition", actually does not "recondition" the battery, it is a trick just to get more accuarte readings (that's the only reason you reset STATS)
The battery may not charge up to 100% and will never do, just following this procedure. It will just say it is @ 100% when you actually are @ 85 or 87, that's why the sudden "jump" you see.
Best way to try to get better readings is charging the battery till it says 100%, unplug it and plug it again a couple of times until it fully charges and follow the same procedure.
Once yo did this a few times, turn off phone, reboot in CWM (with the phone never unpluged) and clear battery stats. turn off phone and unplug,,,,
You will got at least more accurate readings
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Click to collapse
Android Police did a piece on plugging and unplugging your phone to get up to 100% (it's called bump charging, see below). They recommended that you NOT do it because it doesn't get you much additional juice and you wear your battery out faster. Normally I just charge my battery up to 100% (no drain), wipe the battery stats, unplug and go until it dies. I use it while it's plugged in and still get a full day easily out of my phone.
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
I hate to be the bearer of bad news. You can not condition a Lithium-Ion battery. All you are doing is wearing it out prematurely by deep cycling. Every time you do this you destroy your over all battery life a little.
I have posted about this here in several thread, and I am getting a little tired of having to tell people NOT to do this because they don't search for themselves. Do a search on the forums for deep cycle li-ion and see for yourself.
If you want to know the technical reasons why, Google is your friend.
so we just deal with what is perceived as faster battery depletion?
Im asking because As i have posted on another threat I am a complete freak about my battery life.
Basically yes, I have 3 batteries to go around all day, although I us the car charger, if for any reason one day I take the train to the city, I will eat up 2 and a half batteries in a day.......
I had 3 batterys for my hd2 I need to get 2 new batteries for my vibrant. I guess im just tripping because I tried and over clock kernal and it seems like its dying faster while the screen is off
T313C0mun1s7 said:
I hate to be the bearer of bad news. You can not condition a Lithium-Ion battery. All you are doing is wearing it out prematurely by deep cycling. Every time you do this you destroy your over all battery life a little.
I have posted about this here in several thread, and I am getting a little tired of having to tell people NOT to do this because they don't search for themselves. Do a search on the forums for deep cycle li-ion and see for yourself.
If you want to know the technical reasons why, Google is your friend.
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went to your link, and found this..
http://www.ehow.com/how_6803484_do-lithium-battery-cell-phone_.html
anyways, i've heard it all, and even i used to agree with people like you, and it probably DOES wear out my battery, but the first time i did it, i got 6 hours more in battery, does that mean that my batterys dying because its giving me more life?
hazard99 said:
so we just deal with what is perceived as faster battery depletion?
Im asking because As i have posted on another threat I am a complete freak about my battery life.
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Yea, just chill. It is all in your head. From ROM to ROM, usage pattern to usage pattern, and app version to app version - there are just too many variables to worry about. Just use your phone, charge it when it needs it, and relax.
Your phone's battery is going to get less life as it ages. There is nothing you can do about that. Also, it will likely only get 2-3 years before it needs replacement. If it gets less than 2 years it is because you have been "conditioning" it. which ages it prematurely and also causes how long it lasts between charges to shorten as well.
Li-ion does not have a memory, so conditioning is an inherently false concept. Recalibrating the devices ability to read the battery is a different story, but it should only be done if it really needs it (like it thinks it is at 1% when it is at 20%), and it should never be done more frequently than a minimum of 30 charge cycles or if you charge it once a day when you go to bed no more than once a month. Less frequent is better.
So sorry, you need to find something else to obsess about. Might I suggest getting Team Whiskey to make BlackFroyo the default theme, use the 5 bar signal meter, the larger numbers on the battery, and the hacked camera the used the power button to take pictures. That would save all of us some time.
xriderx66 said:
went to your link, and found this..
http://www.ehow.com/how_6803484_do-lithium-battery-cell-phone_.html
anyways, i've heard it all, and even i used to agree with people like you, and it probably DOES wear out my battery, but the first time i did it, i got 6 hours more in battery, does that mean that my batterys dying because its giving me more life?
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Nice link - try reading the stuff by the engineers that work with batteries for a living now instead. You do know eHow is just a site where any idiot that thinks they know something can post, right? Are you going to reference wikipedia next?
BTW when you recalibrated your battery and got 6 more hours, did you do anything else that might have explained it? You know like flash a new effing ROM? That might possible change a few things to do with your power usage.
T313C0mun1s7 said:
Nice link - try reading the stuff by the engineers that work with batteries for a living now instead. You do know eHow is just a site where any idiot that thinks they know something can post, right? Are you going to reference wikipedia next?
BTW when you recalibrated your battery and got 6 more hours, did you do anything else that might have explained it? You know like flash a new effing ROM? That might possible change a few things to do with your power usage.
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it was a joke
and no, i flashed Nero 4.1, and then used it for a week thinking the phone would adjust to the battery and new rom, it didn't.
then i thought i'd just take a chance and recondition my battery, it was my first time, and it worked out great.
and trust me i'm a heavy user.
roughly 300-400 texts per day.
20-40 phone calls
music about 5 hours per day
and i play soem games, but thats understandable because playing dungeon defenders uses like 30% battery per hour bcz of the high graphics and such.
a bunch of app downloading.

battery won't charge past 96%

Hi guys, I am at my wits end with this stupid phone, If its not one problem its another. I was convinced this phone would have amazing battery life once seeing my cousins AT&T version, I bought the UK T-mobile version and its been plagued with faults. The main fault it has developed now is that it won't charge past 96%, I have configured the battery and installed the 1% battery fix and nothing is happening also my battery has been draining quicker than usual. Sometimes I get 13hrs sometimes I get 7hrs!? Could someone give me some advise? I was thinking of ringing my insurance company for a replacement (as it is with my bank and usually they just replace the phone)
amzter said:
Hi guys, I am at my wits end with this stupid phone, If its not one problem its another. I was convinced this phone would have amazing battery life once seeing my cousins AT&T version, I bought the UK T-mobile version and its been plagued with faults. The main fault it has developed now is that it won't charge past 96%, I have configured the battery and installed the 1% battery fix and nothing is happening also my battery has been draining quicker than usual. Sometimes I get 13hrs sometimes I get 7hrs!? Could someone give me some advise? I was thinking of ringing my insurance company for a replacement (as it is with my bank and usually they just replace the phone)
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Click to collapse
You should probably research a little bit more on the forums as there is a million answers about battery life issues.
here is a guide Fix Battery Life: Ultimate guide (calibrate + post#2 -FIXES)
ClearFire said:
You should probably research a little bit more on the forums as there is a million answers about battery life issues.
here is a guide Fix Battery Life: Ultimate guide (calibrate + post#2 -FIXES)
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Click to collapse
thats the guide I have followed, it does not work for me
amzter said:
thats the guide I have followed, it does not work for me
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Click to collapse
Yes it does. Charge with the phone turned off and it will get to 100%.
Also, read post #2.
xploited said:
Yes it does. Charge with the phone turned off and it will get to 100%.
Also, read post #2.
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Click to collapse
I'm sorry, are you sitting in front of my phone? I have followed this correctly on another atrix and it has worked for them, I don't know why its not working on mine I have followed it through properly.
How long have you had the phone?
One thing we all have to consider is that since the dev community has had to provide "fixes" for the Battery Reading on the Atrix it might be safe to say that at some point the measurement might become too accurate. What I mean by this is, I've had my phone for almost a year now and I'm pretty convinced that the reason my battery won't charge past 97% is because of the natural degradation of the lithium battery. It is a fact that lithium batteries can lose up to 10% of its charge capacity after a year. So I've accepted the fact that my battery just might be losing capacity and the battery mods I have applied to my phone are just that much more accurate.
This reminds me of the recently released Galaxy Nexus and people complaining about the signal and Verizon responded with that the "reading" was too accurate and that they'll release a patch that will basically "lie" to the end user about the strength of their connection.
http://www.androidcentral.com/verizon-galaxy-nexus-signal-strength-its-not-us-its-you
Verizon is just basically saying "Here, let us cripple your phone for you"
amzter said:
I'm sorry, are you sitting in front of my phone? I have followed this correctly on another atrix and it has worked for them, I don't know why its not working on mine I have followed it through properly.
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I have had the phone for about 3 months now. This is why I am saying its weird. The fact that it dies so quickly is another thing I got about 7 hours of moderate use with about 1hr 45 display time with 10 mins of music and about 10 texts and a few phone calls(about 3 short 5 min ones)l
All of you are talking percent. What is the power level of the battery at max charge? Battery showing charging to 100%, or any other percent, and having full charge are not the same thing.
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amzter said:
I have had the phone for about 3 months now. This is why I am saying its weird. The fact that it dies so quickly is another thing I got about 7 hours of moderate use with about 1hr 45 display time with 10 mins of music and about 10 texts and a few phone calls(about 3 short 5 min ones)l
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Click to collapse
Could be a faulty battery. If you've only had it 3 months I would try to get the battery replaced if it has drain issues.
CaelanT said:
All of you are talking percent. What is the power level of the battery at max charge? Battery showing charging to 100%, or any other percent, and having full charge are not the same thing.
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You make a good point, I use Battery Monitor Widget Pro and keep an eye on usage time rather than battery level.
CaelanT said:
All of you are talking percent. What is the power level of the battery at max charge? Battery showing charging to 100%, or any other percent, and having full charge are not the same thing.
Assimilated via WinBorg 4G
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Click to collapse
The battery never reaches 100 on the phone it will sit there at 96% and even the battery calibration app says the battery isnt at 4200mv (which apparently it should be) its at 4190. I never charge mid way I always let the phone get to about 15% then chuck it on charge.
You make a good point, I use Battery Monitor Widget Pro and keep an eye on usage time rather than battery level.
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Well I use the internal android one but I want to know whats draining it because today nothing was running, i had everything shut down and frozen that wasn't necessary.
You might need to use a 3rd party app to find the "rogue" app/process. Other than BMW, I also use System Panel to monitor it if I notice my usage time is depleting, it works well. You have to have monitoring activated and it's only available on the paid version, but you can use the free version to manually watch your apps/processes.
amzter said:
Well I use the internal android one but I want to know whats draining it because today nothing was running, i had everything shut down and frozen that wasn't necessary.
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live4nyy said:
You might need to use a 3rd party app to find the "rogue" app/process. Other than BMW, I also use System Panel to monitor it if I notice my usage time is depleting, it works well. You have to have monitoring activated and it's only available on the paid version, but you can use the free version to manually watch your apps/processes.
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Ok so I recalibrated the battery and got rid of the 96% freeze but now the drain is quicker than ever :S
have you tried wiping battery stats as well? Also, when you recalibrate, do you go through a couple "full" charge cycles? As in, do you allow the phone to fully discharge and then completely charge it plus at least an extra hour? I know that lithium batteries do not have the "memory effect" but I think it has more to do with software rather than the battery itself.
amzter said:
Ok so I recalibrated the battery and got rid of the 96% freeze but now the drain is quicker than ever :S
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live4nyy said:
have you tried wiping battery stats as well? Also, when you recalibrate, do you go through a couple "full" charge cycles? As in, do you allow the phone to fully discharge and then completely charge it plus at least an extra hour? I know that lithium batteries do not have the "memory effect" but I think it has more to do with software rather than the battery itself.
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Click to collapse
yeah i do wipe battery stats but the mAh is not going to 4200 its stuck at 4186 nd wont go past 98%
Something else you could try that I've read around here.
1. Charge the battery for like 4 hours until it won't charge anymore.
2. Unplug the phone from the charger, turn it off, and then pull the battery out
3. Plug the phone back into the charger (Do not put the battery back in yet)
4. Wait for the phone to show an image of a battery with a question mark in it.
5. Put the battery back in.
6. Wait for it to recognize the battery, it will probably give a very low percentage like 5% or 10%.
7. Do not turn it on yet, let it charge for another hour or so.
8. Once you return, it will still probably show a low battery reading, ignore that and boot into recovery while it's still plugged in by long-pressing the power button and when you see the green led notification light press and hold volume down
9. Wipe battery stats and then reboot.
10. Wait for it to boot and then unplug it from the charger and check the battery reading.
I really don't understand what this does but I've read it has fixed the issue for some people.
amzter said:
yeah i do wipe battery stats but the mAh is not going to 4200 its stuck at 4186 nd wont go past 98%
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Transformer Prime Main Battery not charging past 56%

I have searched the forums and have not managed to find a solution to this problem. This started a few weeks ago with the tablet only charging to around 80% charge but over time it has slowly reduced to only around 50-60% (today 56%). I have 2 chargers which both have the same result. Both charge the keyboard to 100% and both charge the tablet up until the point the icon changes from charging to a normal battery indicator at only partial charge. I have tried resetting multiple ways and times and a full factory reset, to no avail. Any feedback / insight into the issue welcome.
eyesparky said:
I have searched the forums and have not managed to find a solution to this problem. This started a few weeks ago with the tablet only charging to around 80% charge but over time it has slowly reduced to only around 50-60% (today 56%). I have 2 chargers which both have the same result. Both charge the keyboard to 100% and both charge the tablet up until the point the icon changes from charging to a normal battery indicator at only partial charge. I have tried resetting multiple ways and times and a full factory reset, to no avail. Any feedback / insight into the issue welcome.
Click to expand...
Click to collapse
Sounds like it needs a new battery.
chamberc said:
Sounds like it needs a new battery.
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Click to collapse
You might be right. I was hoping there was some kind of misreporting issue. Something similar happened a few months ago but one day it just worked to full charge and was fine for a while. The intermittent nature had me wondering if there was a software issue.
Have you cycled it completely?
chamberc said:
Have you cycled it completely?
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Click to collapse
I didn't fully discharge the battery to zero and recharge if that is what you mean. I try to avoid it since a previous phone fully discharged and was a nightmare to get going again (sealed battery). I called the people I bought it from and they organised a RMA at a local store, so it is out of my hands for a while. Hopefully it comes back without any dings etc. and a working battery. Thanks for your input.
I know with android sometimes the fuel guage can go crazy, if it were, say, an S2 i'd say go to recovery, reset the battery stats and cycle the battery. If you FEEL the tablet is only lasting half the time it should then the battery may have issues. If it doesnt seem like your losing any play time just the guage is weird then ya i'd suggest playing with it till it shuts off and let it fully charge, sometimes android needs that just to calibrate the battery stats.
You never want to let these batteries discharge to complete 0 however most have a undercurrent protection where they shut down if theres too little power so damage doesnt occur. (My S2 actually stopped charging once when it got well below 0, i thought that was cool)
Anyways, good luck with the RMA, let us know how that goes!
pileot said:
I know with android sometimes the fuel guage can go crazy, if it were, say, an S2 i'd say go to recovery, reset the battery stats and cycle the battery. If you FEEL the tablet is only lasting half the time it should then the battery may have issues. If it doesnt seem like your losing any play time just the guage is weird then ya i'd suggest playing with it till it shuts off and let it fully charge, sometimes android needs that just to calibrate the battery stats.
You never want to let these batteries discharge to complete 0 however most have a undercurrent protection where they shut down if theres too little power so damage doesnt occur. (My S2 actually stopped charging once when it got well below 0, i thought that was cool)
Anyways, good luck with the RMA, let us know how that goes!
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Click to collapse
It was definitely only lasting half the time it did when it was taking a full charge, so I think it is likely a battery issue. These things happen. Now it is just fingers crossed for the RMA.
Just got my RMA back and they have replaced the entire unit, which will hopefully do the job. Currently charging (totally flat on arrival) so patiently waiting to have a play. Forgot how much I like the form factor.

Redmi Note 4 Dead battery?

Hi to all.
Strange things are happening with my battery, phone...
In last few days my battery can't hold much. It drains very fast, i mean very very fast. When i use the phone, maybe it can hold for 1 hour and more. Just browsing, chat, nothing special. When i put the phone to the charger it's also charging very fast, and even,it's skipping the numbers. For example, i'm looking at my phone, it's 19%, and for another moment it's 21-22%, maybe 15-20 seconds difference, literally you can see numbers skipping. Also, for example, i have now 45% battery, it's not on charger, and the second moment when you look at the phone it's 48%, that usually happens when the phone is in sleep or stanby mode, call it whatever you want.
I won't try flashing ROMs , factory reset etc... because the same thing happens when the phone it's turned off. I mean, the fast charging and skipping problem.
I don't have any problem with heating. The phone works as usuall, it's fast and everything. Well, from my earlier experience, the battery is probably dead. I even ordered a new one, but it will take a few weeks to arrive from China.
I will post also a screenshot of battery stats, and i will mark the parts where you can see the percentage of battery going up, even when it's not on charger (what the heck).
Does anybody have this kind of or similiar experience/problem? Not on the same phone, i meant in other phones also. Could be there some problem with motherboard, charging, or something else?
Here's the screenshot. I hope everybody will understand what am i talking about.
ekin_strops said:
Hi to all.
Strange things are happening with my battery, phone...
In last few days my battery can't hold much. It drains very fast, i mean very very fast. When i use the phone, maybe it can hold for 1 hour and more. Just browsing, chat, nothing special. When i put the phone to the charger it's also charging very fast, and even,it's skipping the numbers. For example, i'm looking at my phone, it's 19%, and for another moment it's 21-22%, maybe 15-20 seconds difference, literally you can see numbers skipping. Also, for example, i have now 45% battery, it's not on charger, and the second moment when you look at the phone it's 48%, that usually happens when the phone is in sleep or stanby mode, call it whatever you want.
I won't try flashing ROMs , factory reset etc... because the same thing happens when the phone it's turned off. I mean, the fast charging and skipping problem.
I don't have any problem with heating. The phone works as usuall, it's fast and everything. Well, from my earlier experience, the battery is probably dead. I even ordered a new one, but it will take a few weeks to arrive from China.
I will post also a screenshot of battery stats, and i will mark the parts where you can see the percentage of battery going up, even when it's not on charger (what the heck).
Does anybody have this kind of or similiar experience/problem? Not on the same phone, i meant in other phones also. Could be there some problem with motherboard, charging, or something else?
Here's the screenshot. I hope everybody will understand what am i talking about.
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Click to collapse
I'm wondering if you have a hardware issue, you stated in another thread your battery​ was charging in an hour, now that is very unusual to me.
It should be around +/- 2hrs with phone switched off.
Wilderone said:
I'm wondering if you have a hardware issue, you stated in another thread your battery​ was charging in an hour, now that is very unusual to me.
It should be around +/- 2hrs with phone switched off.
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Click to collapse
Well i'm also wondering. I will found out probably soon, when i get the new battery. From the start, when i bought the phone it always took less than 2 hours to charge, later that changed a little bit. The charging got faster over time. I was never thinking to much about it. The phone is really useless now, at the moment i don't have another phone. I was thinking buying a new one, but i will probably wait to see the results when i change the battetry.
ekin_strops said:
Well i'm also wondering. I will found out probably soon, when i get the new battery. From the start, when i bought the phone it always took less than 2 hours to charge, later that changed a little bit. The charging got faster over time. I was never thinking to much about it. The phone is really useless now, at the moment i don't have another phone. I was thinking buying a new one, but i will probably wait to see the results when i change the battetry.
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Click to collapse
I'd be interested to know when you do replace it, whether it's just an inheritly bad battery or something to to with the charging PCB.
Sent from my Redmi Note 4 using Tapatalk
Well i hope it's just the battery.
Wilderone said:
I'd be interested to know when you do replace it, whether it's just an inheritly bad battery or something to to with the charging PCB.
Sent from my Redmi Note 4 using Tapatalk
Click to expand...
Click to collapse
Hi to All, and Hi to you Wilderone!
As i already wrote, i was waiting for the battery to arrive, and it arrived yesterday. I replaced the battery, it was charged already to 41%. For now, the battery is holding quite good. No "problem" while charging either. It takes now approx. 1 hour and 50 minutes to charge from 0 to 100%. Before, it was approx 70 minutes. I can't tell yet anything about the battery life, because it was charged only one time, and i didn't use it much from yesterday because i was working all the day, but i hope i will be able to post battery stats in a few days. So i hope that it was only bad battery, and that there is no problem with motherboard or with the Charging PCB. Will keep you informed.
ekin_strops said:
Hi to All, and Hi to you Wilderone!
As i already wrote, i was waiting for the battery to arrive, and it arrived yesterday. I replaced the battery, it was charged already to 41%. For now, the battery is holding quite good. No "problem" while charging either. It takes now approx. 1 hour and 50 minutes to charge from 0 to 100%. Before, it was approx 70 minutes. I can't tell yet anything about the battery life, because it was charged only one time, and i didn't use it much from yesterday because i was working all the day, but i hope i will be able to post battery stats in a few days. So i hope that it was only bad battery, and that there is no problem with motherboard or with the Charging PCB. Will keep you informed.
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Click to collapse
Hi, sorry to bumping your thread but where did you get the replacement battery? Please give me the link I cannot find it anywhere here in Indonesia and one try from aliexpress was no good.
Hi bro same issue here
When i go through your thread i found the actual situation am facing on my rn4 . Sometimes i think that is it my battery percentage or the clock ?
It drains very much fast without using even once ite chage 100-50 in almost 4 hours. I would like to know how's your battery now after changing how long it holds on a heavy use .also if you can help then help me with the battery change
Thank you

Mate 10 Pro - Battery percentage out of the box

Hi all, this may seem like a strange question.
Just got a new Mate 10 Pro, and when I switched it on for the first time the battery percentage was at 42%. I've read somewhere that as a general rule for new phones, batteries are normally between 50 and 60% out of the box, and if it is anything less this could be a sign that the battery is faulty (e.g. can't hold charge for long). Also my last few phones have actually been around 50-60%, so was a little concerned to see it at 42%.
Does anyone know if this is true or what I've read is a load of rubbish?
Don't want to return phone but will if I have to.
Thanks.
I had mine with 34%. Some even got them at 0%. Try charging and see if it charges fast. And then use the phone. If all seems normal than there's no problem.
But that's is really weird,i saw 3 new mate 10 that came with dead battery, I'm sure that's not normal.
I'm thinking that while the phones were shipped they turned on automatically and drained the battery.
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I spoke to Huawei and they say they've had multiple cases of battery being below 60% due to phones being accidently turned on in transit. They suggested charging to 100%, then leaving phone in airplane mode overnight with all apps closed and seeing how much the battery drains. Anything above 96% is a good battery apparently.
gm007 said:
But that's is really weird,i saw 3 new mate 10 that came with dead battery, I'm sure that's not normal.
I'm thinking that while the phones were shipped they turned on automatically and drained the battery.
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Same here!!!!
Completely dead!!!!!
Mine was stone dead out of the box. Zero %. !!! Charged it up.... took an hour and a bit to get to 100%. Used it for just over a week now and battery is fine and dandy... Drops a couple of percent overnight... Lasts forever during the day. Really is a monster battery. Seen quite a few reports of zero % out of the box (which is pretty unusual....most phones I've had seem to be about 60%) but doesn't seem to be an issue... maybe that's how they ship them now...for whatever reason ???? Anyway, seems to be a non-issue.
Same thing. My first mobile with dead battery after I opened box. But about 10minutes I had same percent I can use.
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mines had 12% i never switched it on plugged in the charger as i like to start with 100% battery while setting up a new phone.
Guys, the battery measurements seem to be screwed up at first. Even when I switched phone off, it drained like 10%. However, after about 3 full charges, everything is great. Still at 100% in 2 days (yeah, I left it off for 2 days just to check). So, my theory is just that the phone needs to calibrate its measurement of the charge percentage.
My pro came with dead battery too.
Same here, dead battery. After first charging, is working just fine.
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Mine was around 60%
My Mate 10 standard was at about 87‰.
Mine came dead too, i was very concerend and also started a new thread about it here. Relived to see that many have the same "problem" so far I am loosing about 10% overnight with wifi and all enabled. Seems a lot to be honest but I am going to try it for a few weeks to see what happens...
exxi said:
Mine came dead too, i was very concerend and also started a new thread about it here. Relived to see that many have the same "problem" so far I am loosing about 10% overnight with wifi and all enabled. Seems a lot to be honest but I am going to try it for a few weeks to see what happens...
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With wifi, there might be some background app processes running that are draining battery life. Try it without wifi. You should lose less than 5%.
mine completely dead on arrival...I also notice that the power button easily press n get the phone to restart few times for me...
They're supposed to charge it till its full on the first time to optimise it
I'm surprised so many Mate 10 Pro's have been delivered dead or with minimum percentage. Mine switched itself off at 10% so seems like there is some calibration issues too. Hopefully these will work themselves out after a few charges, not sure if it's because the phone is so new (maybe first batch niggles?), but didn't have any of these issues with my Mate 9.
How are people's batteries that came dead or with minimum percentage performing so far?
Toffolo1 said:
I'm surprised so many Mate 10 Pro's have been delivered dead or with minimum percentage. Mine switched itself off at 10% so seems like there is some calibration issues too. Hopefully these will work themselves out after a few charges, not sure if it's because the phone is so new (maybe first batch niggles?), but didn't have any of these issues with my Mate 9.
How are people's batteries that came dead or with minimum percentage performing so far?
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Very well, no issues with battery life so far. Mine came dad and acted up quite a bit in the beginning.

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