Huawei P9 Battery problem - Huawei P9 Questions & Answers

Hi,I have a Huawei P9(EVA L-19 model,Android 7,ver. C432B399).The phone is 2 years old and the battery was starting to get weaker so a week ago I replaced it with a new one,but since then i started experiencing problems with sudden battery drops.One day it dropped from 27% to 4%,the next day from 35 to 11%.Basically,after the charge drops below 40% it enters in this critical zone where i dont know when or will this drop happen and it always happened while i wasnt using the phone.
Since then i ve tried different battery calibration method,factory resetting the phone and even flashing it back to android 6.0,but the problem still occurs.
So I'm asking for your opinion is this some sort of hardware problem or just a faulty battery?

CroBot said:
Hi,I have a Huawei P9(EVA L-19 model,Android 7,ver. C432B399).The phone is 2 years old and the battery was starting to get weaker so a week ago I replaced it with a new one,but since then i started experiencing problems with sudden battery drops.One day it dropped from 27% to 4%,the next day from 35 to 11%.Basically,after the charge drops below 40% it enters in this critical zone where i dont know when or will this drop happen and it always happened while i wasnt using the phone.
Since then i ve tried different battery calibration method,factory resetting the phone and even flashing it back to android 6.0,but the problem still occurs.
So I'm asking for your opinion is this some sort of hardware problem or just a faulty battery?
Click to expand...
Click to collapse
Faulty battery

Where did you buy the battery? On the net or else?
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Related

Faulty battery or faulty phone hardware?

So, a couple of weeks ago I went to bed with the Note connected to the AC charger while listening to music when sleeping. I woke up the next morning, only to find an EXTREMELY overheated phone that wouldnt boot or charge. Went to a local electronincs store and it turned out that the battery was dead so I ordered a new one. (Original battery, identical to the previous)
The first day of using the new battery I ran in to some strange behavior, the screen started to flicker as if the phone was running out of battery, the only problem was that there was atleast 30% of battery left. I have been experiencing the same kind of behavior ever since. The phone suddenly drains the battery, precentages increases or decreases when not charging, or the battery is suddenly empty at 15-40%. When I left for school today my phone was 100% charged, when I came home it was probably 50%, I listened to some music, after a while it read 15%, and before the song I was listening was done the phone started to flicker (as usual) and then turned off. I connected it to my PC and charged it for about 30 minutes, and when I turned the phone on the battery read 50%?? So basically I've experienced pretty wierd battery behavior all over.
The screen flickering has occured before when using low quality charger with battery stats at ca 1%, thats quite normal i guess?
I haven't been using low quality chargers on the new battery, nor did I under the incident that killed the previous battery, however, I've been using an original Galaxy SII charger with a 0,7A output, should be totally fine right?
I'm out of ideas what to try, I've tried to delete battery stats after a 100% charge numerous times, no change. Havent seen any battery drains from the battery monitorer. Currently using MIUI Vengeance CM9, havent experience battery drain earlier with this rom.
So what do you think? Battery, phone hardware or software?
try to clean the battery contacts at the back of your phone also clean out some dusts or lints on your usb charging port. Charge it back after to 100% and see if your still getting the same problem.
The same problem still occurs, thanks tip though.
lameplx said:
The same problem still occurs, thanks tip though.
Click to expand...
Click to collapse
It's unlikely its hardware related, but get a replacement battery from somewhere preferably stock, they're not expensive. It's not hardware, most likely duff battery.
Sent from my GT-N7000 using xda app-developers app
I think i have the same situation as yours. My battery is kinda bloated also. Im planning to chnage battery if it works...
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PierreTech said:
I think i have the same situation as yours. My battery is kinda bloated also. Im planning to chnage battery if it works...
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Finally bothered to buy a new battery (again), and so far the battery life seems to be all good!
I guess I was just a bit unlucky by having the orginal battery break, and then receiving a faulty battery after ordering a replacement A series of unfortunate and confusing coincidents

screen flickering - a common problem?

Hey guys!
Recently I read a lot about people who are facing the screen flickering issues on their Note. (YouTubv-Video, thanks to Parth)
For those who don't know about the problem:
When your phone is discharging it'll randomly begins flickering and shut down, then restart with 1 % battery left. The performance of the battery is dropping from around 4000 mV to 2500 mV... A new battery should fix this.
The strange thing I've noticed is that those people bought their Note around 12 months ago.
I bought it in November 2011 and got the issues around 3 weeks ago.
Could this be a common problem? Let me hear your opinion / experiences.
I've had this flickering for the first time about 1 week ago, after I replaced the original battery with a fresh one (from Anker): The flickering began when the new battery had 0% left. But instead of shutting down, the phone was flickering for about 1-2 minutes before the battery ran out of power and the phone was instantly switched off - without a "clean" shutdown. So it seems that the new battery does not "tell" the phone to shutdown before it is empty, and the flickering might be a symptom of a very weak battery. Just a guess...
Yes .. it happens on low battery. have noticed this on 3 notes already
dude wrong section and... search.... get new battery or ask warrantee
baz77 said:
dude wrong section and... search.... get new battery or ask warrantee
Click to expand...
Click to collapse
Think you're missing the point of this post...
To op, bought mine same time as you and flickering began 2 weeks ago, plus now needing 2 charges a day on original battery. Have just ordered a replacement. But yes, the timing is uncanny.
Sent from my GT-N7000 using xda premium
geez ..i thought it was just me ... I also notice this just about 2 - 3 weeks ago ... Strange thing is when i recharge it and check the battery starts ...
there will be a drop from 30% --> 0 % and charging starts from 20% upwards ...
I still have the original battery from Samsung ....
Also noticed that the battery is getting hot every time I have the screen on for more than 4 mins ...
I purchased my Note in October 2011
My battery became worse more and more... Recently I got a drop from 98 % to 1 % Already ordered a new one, hope it'll arrive within 7 days
SpyderTracks said:
But yes, the timing is uncanny.
Click to expand...
Click to collapse
Exactly. That's the point of this thread... Should be general discussion btw and no searching for help, but nevermind
My new battery arrived today, big improvement straight out the box.
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SpyderTracks said:
My new battery arrived today, big improvement straight out the box.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Oh cool..
Am also on a new battery now, but I still have the over heating problem.
Any solutions or suggestions?
Am on paranoid android ROM sloth Hydra kernel
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You should see for media scanner issues and wake locks using betterbatterystats
my note is 15 months old. i started having this flickering issue 2 weeks back and got a new samsung oem battery 5 days back. the new battery has manufacturing date of 2012.12.27 on it. the flickering issue was 98% cured after getting a new battery as the only time i got flickering issue with the new battery was when my battery level was 8%.
now the strange thing happened yesterday. i was online on facebook for quite a long time on my note, upto the point when my battery reached 1%. then i decided to give it a rest and turned it off manually via proper power off. my note was turned off for about 2 hrs, then i came home and connected my charger while my note was turned off, but the charging indicator never showed up. i thought maybe it will take few moments for it to show up. i checked my note again after half an hour but it still wasn't showing charging indicator. i tried turning it on but it didn't turn on. i tried putting my old original battery and it worked perfectly as before along with the flickering issue. it was charging as usual so the charger is not the problem. i tried putting the new battery again and still it is neither turning on or showing charging. what am i supposed to do now?
EDIT: i think my new battery has gone into deep discharge. is there any way to revive it?
same issue
Guys i dont think this is a simple battery issue.... I think this may be a media bug on rom Jelly Bean ...
I have the same problem and the batery was full charged with 98% ... I just unplugued for the charger and it just flickered screen and bummm phone off and battery drain... and it allways heats up the phone.... I play a game a lot called rage of bahamut and it started all by playng that game lot of time...
Now the problem is gueting worse... just by watching a simple site it goes down .... this is NOT a battery issue...it must be from the rom or kernel ...
its like something its not controling the battery usage correctly ... it only hapens when its not plugued to the charger....
can some op say something about this issue?? Please
Nicko80 said:
Guys i dont think this is a simple battery issue.... I think this may be a media bug on rom Jelly Bean ...
I have the same problem and the batery was full charged with 98% ... I just unplugued for the charger and it just flickered screen and bummm phone off and battery drain... and it allways heats up the phone.... I play a game a lot called rage of bahamut and it started all by playng that game lot of time...
Now the problem is gueting worse... just by watching a simple site it goes down .... this is NOT a battery issue...it must be from the rom or kernel ...
its like something its not controling the battery usage correctly ... it only hapens when its not plugued to the charger....
can some op say something about this issue?? Please
Click to expand...
Click to collapse
Maybe you SHOULD REALLY BUY A NEW BATTERY :thumbup:
that exact words you say are the exact words I say before I bought battery and said OOOPS BATTERY ISSUE..
I bet my balls it is a battery issue..
END.lol
<<<The CRACKS on my NOTE shows how often it KISSES the FLOOR>>>
And the overheating problem? Its battery to?
Battery calibration says the battery is 4200mv...
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Nicko80 said:
And the overheating problem? Its battery to?
Battery calibration says the battery is 4200mv...
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
First thing first....battery calibration THROUGH wiping battery Stats is one of the BIGGEST LIE on Android.
I remember someone Expert on android posted that on Google+.
Just try what I say and you'll thank me..
Buy a new battery brother..
I have experienced all that..
Ive tried many things to solve it..
+Screen flickers afrer reboot right?
+(Maybe) phone shuts off after capturing picture with flash right?
+Battery spins right?
+Playing intensive games makes phone shut down(sometimes) right?
+battery percentage not accurate right?
Im not arguing brother.. :thumbup:
Im just here to help..
All im saying is that I experienced all you said and solved my problem by changing battery..
Im suggesting something that might help you..
If you dont want to buy, then borrow some friend's SGN battery just to try what I am saying..
Goodluck :thumbup:
Ok I Will.... Maibe it is the battery... It as 15 months old with heavy usage :thumbup:
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Nicko80 said:
Ok I Will.... Maibe it is the battery... It as 15 months old with heavy usage :thumbup:
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Update us here if Im right. :thumbup:
<<<The CRACKS on my NOTE shows how often it KISSES the FLOOR>>>
I have had this problem on some ROMs only. When I switch back to a known safe ROM this problem goes away. I'm currently on Asylum 23rd and do not have this problem.
Problem solved...
It was battery...
New battery runs smooth... No more flickering or shut downs...
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New Motorola RAZR i battery drains quickly

Hi
I bought the Motorola Razr I yesterday, I been using it all day today.
But the battery is abnormally short. It drops very fast min 10% per hour to 27% per hour. I don't think this is normal for a new phone. The battery temperature is 38°c on normal use.
Am I using the phone wrong or did I get a faulty phone?.
I have nfc on all the time until 23% but after that I turned off nfc to see if that was the problem but it didn't seem to be.
I can get screen captures if needed.
Sent from my ME371MG using xda app-developers app
you need some circles from full to down then you will se the real power.
but the battery with stock rom is not so great as with the custom rom from omar or max.
i dont think your battery is faulty give it some tryes!
and at least you csn not easy change the battery by yourself
regards
xiaokai said:
Hi
I bought the Motorola Razr I yesterday, I been using it all day today.
But the battery is abnormally short. It drops very fast min 10% per hour to 27% per hour. I don't think this is normal for a new phone. The battery temperature is 38°c on normal use.
Am I using the phone wrong or did I get a faulty phone?.
I have nfc on all the time until 23% but after that I turned off nfc to see if that was the problem but it didn't seem to be.
I can get screen captures if needed.
Sent from my ME371MG using xda app-developers app
Click to expand...
Click to collapse
You might wanna figure out what is actually draining your battery. Search XDA for 'better battery stats' and install it. When your phone is not beeing used it should stay in deep sleep for most of the time, if not, check wakelocks to see whats keeping it from sleeping. For me it was mostly Google Now which caused the drain.
ok so the more i use the battery the better results i may get?
One of the reasons i bought this phone was because of the review on battery life e.g. http://www.techradar.com/reviews/phones/mobile-phones/motorola-razr-i-1098183/review/9
Now i have done a wipe of cache and data, did a factory reset. Charged from 10% to 100%. Getting the last few % is hard, this morning i woke up and it was still 99%. Went back after 1 hour to check it was 99% and dropped to 98% while the phone is off and charging.
Once its 100% again i will install the better battery stats as 696 suggested and post my results.
In my pretty long android experience this happens all the time with new phones, after updates.. You can do anything you want (cleaning cache, restart, etc), but it gets finally better by itself after a couple of days.
Don't ask me why, but it works like that.
Battery life of Razr i is excellent, best of all phones (incl iphones) I ever had!
Good luck and have some patience - so simple is that!
Recommended is to charge the new Phone full, before you turn it on the first time. A lil bit patience is needed, but that should help to avoid stuff like this.
And as the Guy above already posted, the battery will calibrate during daily use. It's the same, when you flash or update an Rom. You'll see the "real battery drain" first after a couple of Charges. And don't wipe battery stats in CWM, that's useless.
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And also try disabling Google Now (search for that if you don't know how).
My phone never hits 100% on charve all day stuck at 98 or 99%
jutley said:
My phone never hits 100% on charve all day stuck at 98 or 99%
Click to expand...
Click to collapse
I have the same problem phone never gets to 100% it was going to 98% but this morning it was at 97%, thinking of sending it back as it only three weeks old...it should have come right a this stage.
Sent from my Nexus 7 using XDA Premium HD app
Did you manage to get to the bottom of the question?
I bought my Razr i 3 weeks ago, I had high expectations about the battery, but the battery only lasts about one day and half, is this normal? I am not a heavy user.
Cheers

Huawei P9 Battery Issues

So basically i'm pretty sure my P9 is dying
The phone has been freezing and dying at anything from 20%-30% still left, but when i go to turn the phone on its completely dead, at 0% and wont make it past the splash screen.
When i plug my phone in to charge it after its died, it starts charging at 40%-50%, its completely unpredictable.
If anyone could help me out that would be great,
Thanks in Advance
I am struggling with this issue too.
One obvious problem causing that issue the dying battery. The older the battery gets, the lesser its capacity. There is no turning back from it. Everything is born, lives and dies; and the cell phone batteries are no exception.
So since we cannot fix that, one might want to see at least the indicator showing the battery level correctly, so he/she do not encounter unwanted situations. To achieve that, you might want to simply calibrate your battery. There is plenty of ways to do this. Look it up, it's everywhere on internet. There is no guarantee it will work %100 perfectly but hey, that's at least something to do!
I have faced same problem with mine P9, and replaced oem battery about month ago and now is same as first day Still strong cellphone for everyday use and multitasking.
BlueCalex said:
So basically i'm pretty sure my P9 is dying
The phone has been freezing and dying at anything from 20%-30% still left, but when i go to turn the phone on its completely dead, at 0% and wont make it past the splash screen.
When i plug my phone in to charge it after its died, it starts charging at 40%-50%, its completely unpredictable.
If anyone could help me out that would be great,
Thanks in Advance
Click to expand...
Click to collapse
I'm having the exact same problem. I've also tried doing "calibration" etc but no go.
The latest comment indicates that a battery replacement worked well. I'll book my phone in, hopefully it works.
Is there any good replacement battery for our P9?
EVA-L09 cihazımdan Tapatalk kullanılarak gönderildi
blue_moon said:
Is there any good replacement battery for our P9?
EVA-L09 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
I think the OEM Huawei battery for the P9 is not very expensive.
I had the same issue, replaced the battery
and it is good to go.

Dead battery!!!

Hey, got a weird issue with my device.
Just 4 years old piece and already this has a dead battery!!! Cannot use it anymore basically... drains overnight on airplane mode from 75-80% to 0 in 7 hours!!! Last night I left it fully charged and shut down just to not starting anymore this morning because there is no power left, battery is EMPTY!!! Just barely started to charge!!! Something is wrong with this phone, really wrong!!!
I tried custom roms but the phone has the same behavior... so I came back to MIUI 12.5 just to be in the same position and to have the same conclusion: I HAVE A DEAD BATTERY!!!
I went back to my old Redmi Note 5 Pro with a custom rom... just like knew. How is this even possible??? An older device, with same amount of use have a better battery life than a newer device??? Different battery manufacturer, some production flaw in the battery production? Either way, conclusion is clear: NEW BATTERY... so, so disappointed by this situation...
Batteries get old and die , you have to change it , or maybe there is a short circuit on the motherboard , best option is to take it to a repair shop
I know.
But I found out that in fact my phone is only 2 years and 3 months old??? So, is this battery old enough to die? I guess there is something else here.
In the meantime, I already change the battery, sadly not with an original one... and so far so good, but only a few days passed. This battery however is acting strange! Does not charge more than 86%. Aida64 reports battery full at this precent... but I guess time will tell if I made a bad/ good choice.
MadK9 said:
I know.
But I found out that in fact my phone is only 2 years and 3 months old??? So, is this battery old enough to die? I guess there is something else here.
In the meantime, I already change the battery, sadly not with an original one... and so far so good, but only a few days passed. This battery however is acting strange! Does not charge more than 86%. Aida64 reports battery full at this precent... but I guess time will tell if I made a bad/ good choice.
Click to expand...
Click to collapse
encounter the same problem after 4 years of using redmi note 8 battery drains so fast unlike before and changing the battery to a new one it either does not fully charges it to 100 percent and it shutdown when my battery percent is around 20 or so percent but when I try to connect a charge and remove it, it will open up to that 20% or so percentage and continue to be used, I'm guessing the it need a battery calibration but I know really know what to follow on the internet.

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