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MT7-TL10 Battery Problems

Hi,
I owned a Huawei Ascend Mate 7 Gold 9 months ago, and I was very happy because I could use the phone for more than 2 days withouth charging. But recently, the battery started to drain VERY FAST .
For instance, if I go to sleep with the phone at 100%, when I wake up (8h later) , the battery is at 70% or less. With my investigation, I tried/found that:
-The problem is not caused by deep sleep mode, or at least "CPU Spy" shows that the phone is able to do it.
-I tried wipe (factory reset/partition/cache) with no results.
-I calibrated the battery but the problem persists, also I tried charging with 1A charger.
-"GSam Battery Monitor - Root" shows that 47% of the battery goes to "Android System" and another 20% goes to "Kernel (Android OS)".
The issue started at the last week, and the first thing I did was updating Lolipop (I was using it for more than 4 months) to Marshmallow 6.0 (B561). I don't know what do to now, ATM I'm underclocking the CPU, but that's a temporally solution. I always take the battery with a lot of care, I don't know why is happening this.
If someone could help me, I will be very thankfull .
-FULMI

same here
i have exactly the same situation with u and couldn't find a solution yet.

battery issues too
what firmware you running? I have an EU version of the phone, updated to 5.1.1 and it was dying fast. I then updated to 6.0 Malaysian rom from their website and it started to do the 2 day life. However the phone seems to just freeze and sometimes just switch off, so I am thinking of downgrading and then see if its the software or its a hardware failure. I have warranty

I couldn't find any solution yet, so I'm going to downgrage to the 4.X. I don't see benefits from Marshmallow update, also I can't hide the taskbar, so...
Actually I think I'm using CH version B561.
Edit: Fine, I can't find a downgrage pack for my version.

8.1 Update definitely has hurt battery performance

A lot of people have brought this up and I too felt like I was experiencing it. I can without a doubt say the battery is draining faster on 8.1. Before everyone starts with "check your apps, bla, bla bla", let me explain.
I recently RMA'd my Pixel 2 for a different problem. Prior to the RMA, I noticed that my battery seemed to take a hit after the update. However, I had already installed various apps and my feelings were purely speculative. As part of the RMA, I had performed a factory reset as instructed and over the course of 4 days my battery performance was still at the worsened 8.1 levels. I should also state that over the 4 days spent waiting for my replacement phone, I installed no apps and only updated the official Google ones that came pre-installed on the phone.
I received my new phone and this one shipped with 8.0. Again, I've installed no additional apps and I have paid attention to the battery over the last two days. As the day goes on, it gets difficult to determine if it is draining any faster. Luckily, my morning routine is damn near robotic. I eat a bowl of cereal and read the same news sites while using my phone. I take a shower and drive in to work. With my original phone on 8.0, I would arrive at work with my battery showing 99-100%. With the 8.1 update, my battery had dropped at this point in the morning all the way down to 94-96% (this drop was consistently reproduced for ~2 weeks). With my RMA replacement I am still on 8.0 and following my usual morning routine my phone is still at 100%.
I know that this test is not the most scientific but I think it is controlled enough to be able to say that something is different between 8.0 and 8.1. I know that others have voiced their concern that the battery performance has suffered. Has anyone rolled back to 8.0 and saw the battery go back to normal? I have a theory about the 8.1 update, but at this point I would rather not share it as it may guide the discussion down the wrong path.

I don't know how much truth there is to this, but some were speculating that 8.0 actually did not report battery percentage correctly, whereas 8.1 fixed this to report correct usage. FWIW, I'm getting to the end of the day pretty consistently with around 50% battery left and 4 hrs SOT, and I think that's a much better measure than how long it takes to drop from 100.

I've heard that too about battery reporting.

clcdev said:
I don't know how much truth there is to this, but some were speculating that 8.0 actually did not report battery percentage correctly, whereas 8.1 fixed this to report correct usage. FWIW, I'm getting to the end of the day pretty consistently with around 50% battery left and 4 hrs SOT, and I think that's a much better measure than how long it takes to drop from 100.
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I don't think it's speculating. There was definitely something wrong with the battery calibration on 8.0. I'd have two hours of screen on time after taking it off the charger and it would still say 100%. At first I thought it was stuck and not working at all but eventually it would start to drop. As we all know, there's no way you can have that much SOT and still be at 100%. There's no doubt the battery level indicator drops faster when you first unplug the phone after updating to 8.1 but the bottom line is (at least for me) I still end up at the end of the day with pretty much the same battery left as I did when I had 8.0. That's all that really matters to me pretty much tells the story.

The prior 8.0 battery I believe had a bug where it did not report correctly. I remember before I'd use my phone for a long period before it even moved off 100%;

I did the 8.1 update and my battery is much better than it was on my previous phone. I may have had a bad device.

I think that is a bad way to judge battery. It is more accurate with 8.1 as with 8.0 i would get like 30 minutes of screen time some times and still be at 100-99%. if you do that math on that this would probably last me the whole week. But I used to get ~ 5hours of screen time and now i will be lucky to get 4 hours. My routine and work schedule is the same since the update. 8.1 I for sure lost about 1 hour of screen time.

I just got my Pixel 2 and have had it for 3 days now. I did my first test today against my original Pixel. My original was charged up to about 95% and my Pixel 2 was also charged up to 95%. I left my original sitting at home while I took my Pixel 2 to work with me. If I had had my original with me, my phone would be charging right now because it would be below 15%. Pixel 2 is sitting pretty at 67% As for the original that has been sitting on my night stand doing nothing, it's at 56%.
So if there's a battery issue with 8.1, either i'm not experiencing it or I should be at a higher percentage, lol. BTW, both phones all have the same apps and same configurations. Running for about 13hrs each. And as others have said, I remember also seeing that 8.0 was giving incorrect battery readings on the Pixel 2, which 8.1 fixed.

Display drains battery in no time - hardware issue?

As I just sent my Galaxy S7 back to Samsung for repairs, I had to break out my trusty red Nexus 5 again. I got it up and running with Oreo 8.1 in no time (thanks to the xda community, as always) and so far, it's holding up well for a four-and-a-half year smartphone. Only the issue why I originally replaced it still annoys me, and that's the battery.
Whenever the phone is sitting around, it barely uses any battery - it can be sitting around for over one hour, WiFi and BT on, getting notifications etc., but the battery maybe loses one percent. If I have a phone call, I maybe lose 1% every 5 minutes or so - that's still fine by me. However, as soon as I am "using" the phone and keeping the display on to read emails, text, or browse the web, the battery plummets and I can use up 10% in 10 minutes.
It almost seems like there is a hardware issue with my display causing the extreme power usage. I am on my fourth battery - the first one was replaced with one from ebay (said "original, but you never know) when it didn't last over a day anymore, that improved it for two months or so before it degraded again. Then I decided to spend 40€ on a genuine one directly ordered from LG's spare parts site, but that also only held up for four months or so - and now I'm using a battery from ebay again which has been used for maybe a month (and then sitting around, being charged occasionally), but I struggle to make it until 6 pm without recharging.
Do you have any idea what could be wrong with my phone? Could it actually be an issue with the display itself?
Thanks!

Could be the ROM that is causing the battery drain. Maybe try it on a stock ROM?

June2020 update affected battery life?

Hi, I'm a casual user. I did the June 2020 update on my Galaxy S10e last night (June 11). This morning, I used my phone like I have been using it for the past several weeks -- playing Moomin Move. I had doctor's appointment at 8:45am, played all the way to the doctor's starting at 7:15am, and until my number was called, so about an hour and a half. Put the phone in my backpack, did the appointment, then played all the way to the store, walking around, put my phone in my pocket to bag my groceries (this is about 12:30pm) Got on the bus, pulled out my phone, blank screen. Nothing, nada. Get home and plug it in and the battery indicator comes on that it was at 0%. Now for WEEKS I have literally played all day (8+ hours) and never run out of batter (been close, like 12%).
This afternoon (around 5:00pm), I was playing Moomin Move on the phone while it was plugged in. When I first woke the phone up, it was at 100%, when I unplugged it to leave to go to the store, it was at 93%. After about 30 minutes, it was at 76%.
I've tried to Google to see if anyone else is reporting this, but couldn't find anything. Does anyone here have any ideas? The update is the only thing that has changed on the phone.
Thanks so much!

I'm on the June 1 security patch version on Exynos. Unplugged mine 15h ago, was at 80% then, with 46min SOT, I am now at 62%. Seems normal to me, nothing like your issue.

Hy, look to device care, battery, and find app, proces with hight % usage of battery. I have the same battery live problem after this update, update delete MirrorLink conection permanently.
I have problem with app, mlp - system app by Samsung, this app usage 30% of battery, phone is to hot and lagy.
Mark

I also haven't seen much difference after second June update. Maybe it is time to do factory reset. It helps with Android phones from time to time.
The other thing is that battery life on the exynos model is very poor.
Tapatalk via Mi Pad 4

l_mike said:
I also haven't seen much difference after second June update. Maybe it is time to do factory reset. It helps with Android phones from time to time.
The other thing is that battery life on the exynos model is very poor.
Tapatalk via Mi Pad 4
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Why is it poor ? Samsung didn't improve the battery life on Exynos since S10e has launched ? (just got my S10e today )
ps : I got a big july update too

[help] how to decrease battery use

so i installed pixel experience on my phone a couple of days ago now the problem i am facing is that the phone is using a lot of battery for everything i can get 6 hours of phone on time while just changing apps,i can get about 5 while watching youtube vids i can get about 3 while gaming so how can i increase my battery life now in the pursuit of getting adaptive brightness working on that model they also dropped deep sleep support and btw the phone is about 4 years old with the original battery installed its an rmx 1801 and even the company has stopped producing battery for (no i cannot replace my phone well atleast till next year i am a child) so if anyone can find a battery for it please comment the link (i am from india)
and i hope everyone reading this has a good day