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Hi all,
I've got my sg2 since june and since the first moment I have got the same problems. I had the stock ROM & kernel with android 2.3.3. The problems I experienced were these:
1) extreme low battery life (6-10 hours, with normal usage)
2) when using heavy apps, my s2 just suddenly turns of. When rebooting it, it has a battery drop of like ~15%. (this only occurs when battery is already bellow 40% left).
3) Like 5-20 times a day (it really difference day-to-day), I got the notification that I have to put my sg2 on a charger. - So the battery bar drops from example 80% to 1%. After like 1 or 2 minutes it just fills up back again to the 80% before. Sometimes when this occurs, it also turns in a few % (like 80% before, and afterwards 75%).
So what did I already tried to fix this?:
- bought new 1600mah battery > didnt solve the problem, conclusion: no hardware malfunction
- I thought the problems could be occured by the tiny space between the battery and the frame of the phone. So it had a lack in connection... So I filled up the little space with i tiny piece of paper> nope didnt helped.
- downloaded mutiply apps for battery saving, task killers, etc etc.> didnt help!
It's really really frustrating, and I'm guessing more and more it's just a software problem. I do have warranty/insurance on it, but i don't want to send my phone to a repairservice because then I've no phone for like 3 or 4 weeks.
So my last option for me was to try a custom ROM and Kernel. So last week I installed the Lite'ning ROM. I also followed up the advice to calibrate my battery, so i did.
And the first day it was running really smoothed! At the end of the day my battery was still alive and I've used it for over 20hours, so I was really statisfied... But a small sidenote: I had a really busy day at work, so I didnt use my phone that much.
So next day, used it alot more. After 5 hours it had only 50% left.... And that's not all, my phone turned off suddenly. Not once, not twice, but 5 times that day.
Seems all these solutions didnt help. The only positive thing of installing Lite'ning ROM is that i now have about 4 or 5 hours more battery life a day.. But if I use it alot, it shut downs a lot more. Wich lead in more battery drops after reboot.
I'm really desperate, and I really don't know what to do now. Does someone have got these really frustrating problems, and do you guys have got some solutions?
And one more question: is my warranty/issurance voided after installing the Lite'ning 6.1 ROM? or can it by tresspassed by using a Jig?
Tnx for your time, and I really really hope you guys can help me cause i'm really getting sick of all this. It's killing me!!!
ps. sorry for my bad english
your warranty is voided by installing custom rom but u can unroot and use the jig to remove counts in counter.
now apart from that it seems if u use your phone for 5-6 hours continuous it will drain the battery because main source of battery drain is the screen display but for moderate use it should be a little over a day.
i am unclear about your usage but still if you have doubts you should really get it checked at a service center.
I would flash back to stock, use the jig to clear the flash counter and exchange that phone, seems it has some type of hardware issue that could be related to temperature as it only shuts down when you use it.
My 0.02 cents
vickarul said:
your warranty is voided by installing custom rom but u can unroot and use the jig to remove counts in counter.
now apart from that it seems if u use your phone for 5-6 hours continuous it will drain the battery because main source of battery drain is the screen display but for moderate use it should be a little over a day.
i am unclear about your usage but still if you have doubts you should really get it checked at a service center.
Click to expand...
Click to collapse
My usage is definetly not THAT extreme, i guess moderate: I never watch movies or youtube, just some messages with WhatsApp, about 4 of 5 times a day checking Facebook, same for Twitter, always GPS off, some time of the day Wi-fi on, never play games, always closing apps on background.
i've got an example of my battery usage (this is one of the best battery usage days i got!!!):
imageshack.us/photo/my-images/809/sc20110622204452.jpg/
(Can't post direct link because i dont have 8 posts yet...)
Battery life the beginning .
better battery stats .
http://forum.xda-developers.com/showthread.php?t=1179809
check Wakelocks .
jje
Today step 2) happened to me
Hello all,
I purchased a Galaxy S2 at the end of July, I live in the US, so it was from Amazon. The phone has been phenomenal, an amazing piece of technology.
I rooted the phone and flashed Lite'ning Rom 6.1 XXKH3. Still worked great, with no problems at all.
However, starting about a week ago, I am getting an extremely fast battery drain. Since then, I have spent hours looking at threads trying to figure out what was going on. I updated the rom to UltraToxic Rom v8.0 XWKK5, still no change.
I used Titanium Backup to freeze many widgets and app processes, still no change. I am currently using better battery stats to monitor wake locks, however after managing the wake locks, still no change.
I then bought a replacement battery thinking that the battery may have been bad, sadly, there was no change.
I have been trying to find a solution to this and had tried many other suggestions in other threads to no avail. As of now I have come to the conclusion that the device might have some type of malfunction that is causing this.
Am I going crazy or am I missing something obvious? Any help would be greatly appreciated.
Thanks
I have also re-calibrated the battery, still no positive changes.
Seeing the battery graph, you have your screen on a lot of time. Screen sucks battery a lot, so there might be one of the causes of battery draing.
Also you seem to have all day enabled 3G/WiFi, that also sucks some battery with it.
You can try JuiceDefender and see if it can help you extend a little your battery.
change kernel
Try flashing hardcore's "SpeedMod Kernel" and you will never complain about your battery life.....
After flashing this kernel my worse battery life was 1day and 12h with 3.5h screen on and wifi 85% ON.
http://forum.xda-developers.com/showthread.php?t=1182498&highlight=speedmod+kernel
AzureusPT said:
Seeing the battery graph, you have your screen on a lot of time. Screen sucks battery a lot, so there might be one of the causes of battery draing.
Also you seem to have all day enabled 3G/WiFi, that also sucks some battery with it.
You can try JuiceDefender and see if it can help you extend a little your battery.
Click to expand...
Click to collapse
Lol.... It's obvious he has some kind of battery problem, he is not using the phone much, and galaxy S 2 should have at least 5-6 hours screen on time and the phone lasted 3 hours.
Sent from my GT-I9000 using xda premium
Since I had all data on the phone backed up, I did a factory reset. I also flashed the UltraToxic Rom v8.0 XWKK5 as well as the suggested SpeedMod Kernel. When the battery was at 100%, I calibrated the battery. I tried to leave the phone idle as much as possible, I did use the internet for about 10 minutes to check e-mail, news, etc. So now the phone is essentially "empty" in terms of apps downloaded, I got rid of all widgets on all home screens.
There was still no positive change, I do really like the SpeedMod Kernel though, I do notice faster responsiveness from the phone.
I am beginning to think that the problem may be the hardware and not the software or battery.
I've got similar problems here. I am suspecting a hardware problem (I damn well hope it isn't coz i got mine from hong kong) because my phone never goes into deep sleep mode for more than 50% while the screen is off. I've tried at least half a dozen different kernels and roms and nothing helps, this is even in airplane mode i.e. with pretty much everything turned off. I've tested wakelocks and dont get anything more than a couple of seconds. I had my battery charged to full at 6:30am this morning, went to work and got home and it was dead after just under 12 hours with being idle 75% of the time. This is worrying as most people's battery lasts at least a whole day.
So I know it can't be the kernel, I know it cant be wakelocks, I know it cant be wifi or 3g data or anything of that nature so the only thing it comes down to now is hardware...
Funnily enough I've had exactly the same issue since about a week ago. Even when I take it off charge it's almost immediately down to around 80%. It's lasting around 4-5 hours, even when I'm not using the phone much, plus it gets really hot.
A couple of times Social Hub has appeared high up on the list of battery draining apps, although I don't use it. It doesn't always show up though. I switched to the CF-Root kernel and started using GO Launcher EX recently and wondered if that (or one of it's addon widgets) could be the cause.
It's really bugging me now!
SOLVED!
After days and days of trying to fix the issue of the phone not sleeping (and therefore draining excess battery whilst idling) I have finally fixed it!!!!!
First i noticed that along with the sleep problems, I was getting the problems with car mode popping up randomly, the phone going into mtp connection mode, and thinking its charging when it was unplugged. After looking into these issues (and i thought it was a longshot) I decided to do what people were saying and CLEAN THE MICRO USB PORT.
Now you're probably thinking I am a crazy man, but now im just crazy happy that I don't have to send my phone back to Hong Kong!
Instructions:
1. Get a clean, dry, soft-bristled toothbrush.
2. Take any case you have off the phone.
3. Gently insert the bristles into the port and "flick" it out softly.
4. Repeat this about 10-15 times
No matter what ROM, what kernel, what modem i tried flashing, my phone was always sitting on no more than 50% deep sleep mode when idle and had no wakelocks or "rogue apps".
I am now getting 90% - 98% DEEP SLEEP MODE!
I obviously can't guarantee that it will work for everyone, heck how it solved the issue is a mystery to me, one which probably an electronically-minded/computer systems person could answer. What I can say though is I searched high and low online for about a week. I tried different kernels, I tried different ROMs, I tried "re-calibrating" the battery, I used BBS to check for partial wakelocks. If you too have tried all this and have had no success please PLEASE try this and see if you have success!!
Thanks for reading!
....
Or if you didnt...
TL;DR: If you're having battery drain problems clean the micro USB port with a soft toothbrush.
The phone never sleeps when charging, the CPU idles at 200 MHz, whatever was in your USB port was probably making contact with the pins that tells the phone it is connected to a charger when it actually is not, so it was idling at 200 MHz and was not receiving power, that's the only explanation I could fathom
Do two things:
Install CPU spy and show us what the deep sleep percentages are,
and try disabling wifi. Also, what is the router?
I have a battery drain issue; but its kind of screwey as i will reboot my phone and lose about 20% of the phones charge. If i turn it off and leave it off for an hour the charge comes back. Its random as well; only happens once a week. I have had this problem on different roms. You might have a similar problem to me. Possible the hardware that detects battery state is knackered.
Sent from my GT-I9100 using Tapatalk
try to reduce screen brightness it might help, and when on wifi turn off data plan might help too
kamazaki said:
try to reduce screen brightness it might help, and when on wifi turn off data plan might help too
Click to expand...
Click to collapse
Since you didn't seem to realize, I thought I'd tell you. This thread was 5 months old before you posted in it...
lol
Hi, I got a very annoying problem.
Since a few weeks ago, flashed a ROM and when I've tried to use the phone, it keeps turning off randomly, sometimes after a few minutes, sometimes after hours. So, I tried to take it back to the clean original 2.3.3 ROM, but it keeps happening. ¿Any idea? ¿Any solution? Please, help me.
Oh, something else, it only happens when the phone's used with the battery, when it's attached to my laptop and used as modem, the problem doesn't appear.
I had the same problem, it said android system shutting down. I just bought new battery and it works.
Sent from my Xperia X10 using xda premium
I think, it's the most logical option, but I was trying to get some feedback first. Thanks.
Maybe calibrating the battery.
Sent from my Xperia X10 using xda premium
go back to stock and see if it helps! try to troubleshoot the problem! Also, don't install any apps!
There are instructions on how to calibrate your battery in the first post in this thread:
http://forum.xda-developers.com/showthread.php?t=1489214&highlight=calibrate+battery
If the problem is the battery, you might find that after calibration that the battery drains faster than expected, and still shuts down, only this time it warns you that it's gonna shut down. This would then be the true battery drain. If that is the case, you might just need to buy a new one anaway.
Otherwise, I don't know what else could be causing those symptoms. (Other than an electrical fault, from accumulated damp or something)
kZard said:
There are instructions on how to calibrate your battery in the first post in this thread:
http://forum.xda-developers.com/showthread.php?t=1489214&highlight=calibrate+battery
If the problem is the battery, you might find that after calibration that the battery drains faster than expected, and still shuts down, only this time it warns you that it's gonna shut down. This would then be the true battery drain. If that is the case, you might just need to buy a new one anaway.
Otherwise, I don't know what else could be causing those symptoms. (Other than an electrical fault, from accumulated damp or something)
Click to expand...
Click to collapse
thanks so much..............
What happens it's that the phone shuts down suddenly, the message appears for a seconds and it's off. Wait for a few seconds, try to turning on again and sometimes works for some minutes, and sometimes it's keeping turning off, and off, and off. But, the battery level seems to be correct, I mean, when I turn on the phone after one of these sudden shutdowns, only drains the logical ammount of battery for starting use the phone.
I think... if the problem never appears when it's attached to the laptop and charging constantly, and magically appears when I used the phone with the battery, it's probably just a battery issue, right?
I have a similar problem to this, my phone randomly shuts down after showing the 'Android System shutting down' message but sometimes loses ALOT of battery. Last night it went from 78% to 8% after shutting down :/ I noticed it happened more often when im playing games or taking a video, things that take up more battery. When i keep it plugged in it keeps awake so the problem stops but i cant keep it in all day every day. I dont really want to buy a new battery until i really really have to, but I have had the phone and battery since the x10 first came out about 2 years ago, so anyone any other ideas? Thanks
danielk0302 said:
I have a similar problem to this, my phone randomly shuts down after showing the 'Android System shutting down' message but sometimes loses ALOT of battery. Last night it went from 78% to 8% after shutting down :/ I noticed it happened more often when im playing games or taking a video, things that take up more battery. When i keep it plugged in it keeps awake so the problem stops but i cant keep it in all day every day. I dont really want to buy a new battery until i really really have to, but I have had the phone and battery since the x10 first came out about 2 years ago, so anyone any other ideas? Thanks
Click to expand...
Click to collapse
Try wiping battery stats then charge to 100% (it may help, not sure)
Sent from my X10S using XDA
laneyofdeath said:
Try wiping battery stats then charge to 100% (it may help, not sure)
Sent from my X10S using XDA
Click to expand...
Click to collapse
Yeah tried that but it didnt seem to work :/
could it be hardware problem like broke battery or bad connection on motherboard?
Could be pal are u within your warranty (sony (Ericsson) it has a 2 year global warranty but u need to ring ur network provider and ask them to put u through to se
Sent from my X10S using XDA
Yeah this happened to me before about 6 months ago, so i went to my provider (3) and they sent it away to Sony Ericsson and they sent me a whole new phone but I didnt want to do that again really, but i may have to. When im not using WiFi or 3G then it works fine, and when its plugged in to the charger it works so i guess its a case of not usuing the internet when im not near a charger
I have the same problem.
My X10 reboot random when using 3G (Wifi is still OK) and Gaming. Now i'm on Stock 2.3 and stock kernel and....wait. (Flash some ROM and change the new battery....but not solved )
Anyone help us !!! Plizzzzzzzzzzz
Maybe your solution
I had the same problem sometimes with original kernel after 1 year of using my phone.
Then i tried to install a new rom, and i was thinking the problem was solved. But it was not...
I finished by trying the X10S (v7) rom with DoomLord kernel (1113mhz) and this problem was solved...
I tried some kernels and this one was stable with a good battery life and no shutdown problem. With some other kernels i had this problem back.
So I think that kernel could be the problem.
Infortunately, with the rom X10S v8, Doomlord kernel cause issues with wifi (unable to get ip adress). So now i use kCernel-SE-stock-mod-v1 and no shutdown problem anymore.
*Maybe the solution is*
Try to change your kernel with one of thoose :
- kCernel here (in "2. kCernel-SE-stock-mod-v1")
- DoomLord (search fo x10_gb_DooMKernel-v06-1113_wifi.zip)
Note :
- With this two kernels, you'll have to download appropriate wifi patch and install it from SDcard via xRecovery
- don't try to install X10S v8 if your bootloader is locked
So, try to flash your X10 using flashtool with Doomlord kernel
Tell us if it worked, i hope it solved your problem as it do it for me.
voltage
Hi,
I have had this issue too, for the last few months. No matter what ROM/Kernel, batt stats cleared, etc, still the same. Can idle all day, but as soon as I use 3G, GPS, or use any intensive app, she shuts down.
As an experiment I installed a battery monitor that plots graphs of % charge, temp, voltage, etc over time.
I had a close look at my logged graphs and have noticed that just before each reboot, the voltage seems to dip drastically. Battery charge is fine, does not seem to matter. but a sharp drop in voltage occurs. Increased draw for the more complex tasks (3G, GPS, etc) seems to be tripping it up.
As the Battery is now 2 years old, I figured it is just starting to fail? And iv noticed lots of people are suddenly coming out and complaining about this issue.
I just ordered a few new Batteries from 'Ebay', will see how we go!...
peace.
[INFO / SOLUTION] Suddenly shuts off with red LED.
Good to know:
The X10i/a have now reached an age, where battery failures is very common nowadays. Specially if one got the device early on or just after the launch.
Symptoms of a failing battery:
* Device suddenly shuts off, even when the battery have several percent remaining.
* Device drains fast, even when not used.
* Device might just shut off for no whatsoever reason when doing something that draws a lot of power, and will restart just fine.
* Device has a surprisingly fast charge time from empty to full.
When the device shuts off all of a sudden, it's followed by the indicator LED blinking red, rapidly three times, and might repeat this at restart attempts.
Sometimes it takes several tries before the device starts up again. Battery just needed a few minutes/an hour of "rest".
There's nothing wrong with the device.
Just get a fresh replacement battery and it'll work just fine again.
But beware:
There are many fake batteries out on the market, claiming that they have higher capacity, yet very slim in size.
There's a simple rule when it comes to battery capacity:
More capacity = larger in size, which might need a special back-cover. There's no escape from that.
If one would happen to find a such incredible slim battery with super capacity, the battery security circuits and/or chemical makeup probably have been circumvented/changed, and have a high risk of catching fire and/or explode when charging/discharging.
Yeah thanks for all the advice and sharing your problems. My phone does reboot alot when im using 3G or taking a video. Recently my battery would reboot, drop alot of percentage and then increase percentage without charging...magic I dont really want to buy a new battery because my new contract starts in june i think, but maybe il have to. Good luck for everyone else dolving there problems
Also, [email protected], i am on doom kernel and i still get reboots :/
danielk0302 said:
Yeah thanks for all the advice and sharing your problems. My phone does reboot alot when im using 3G or taking a video. Recently my battery would reboot, drop alot of percentage and then increase percentage without charging...magic I dont really want to buy a new battery because my new contract starts in june i think, but maybe il have to. Good luck for everyone else dolving there problems
Also, [email protected], i am on doom kernel and i still get reboots :/
Click to expand...
Click to collapse
I've too had the same problem. solved it by replacing battery
Now everything's alright
I'm running dixperia rom with stock kernel
EDIT: but now I have a small problem. Hope someone can solve it. Sometimes, suddenly, the hardware keys light and backlight turns on, without doing any thing and this drains my battery I have to turn on the screen and turn it off back to switch off that backlight and hw keys light
Sent from my Xperia x10 using my fingers
Im getting a new battery soon I hope so I will hopefully get my problem solved
Hey guys.
It seems like almost everyone with battery drain issues has Android OS at the top of their battery stats.
I just want to share my experiences with this particular Bug.
Maybe it will help anyone. Please share if it also helped with your problem.
I had the Android OS bug since I dropped my phone a few months ago and had the screen replaced. The guy who replaced it (official Vodafone shop employee) said that they didn't just replace the screen and that something else was also damaged (they didn't say what) so they also replaced the rest. Well, that's when the Android OS problems started. I tried many ROMs and many Kernels. Sometimes the problem went away for an hour or so, but it always came back.
Then I finally decided to use BetterBatteryStats two days ago (I really should have done this earlier, I know...). I came to the conclusion that I had some sort of the well-known "fuel_alerted" bug, since fuel_alerted was the service that kept my phone from going into Deep Sleep.
This bug should have been fixed long ago but for me it somehow still persists, even on stock JB.
It didn't only drain a lot of battery (I had 8-10h maximum without doing much), it also used up a lot of CPU time, effectively slowing down the whole system to the point that I wasn't able to use Spotify on my phone without severe stuttering.
Well. I found a solution to the fuel_alerted bug.
The procedure is: turning airplane mode on, shutting phone off, taking out battery, putting it back in after a few minutes, turning phone back on.
This solved the problem. No more Android OS draining the power. Phone goes into Deep Sleep again. Only 2% drain after an hour. Spotify runs smoothly again. Yeah!
BUT well... It seems like the problem comes back randomly for me, today I had to replace the battery 5 times...
Now I am trying to strictly follow another "rule" to keep the problem from coming back: Always waking and unlocking the phone before plugging it in or out of power. I never did this before so it could have been the cause of the bug. Now let's see how long it stays bug-free.
If it still doesn't help, I guess I have to conclude it's some kind of hardware problem, which could only be solved by Samsung...
EDIT: Nope. Problem still there. So not really a fix, but maybe still helpful for somebody.
Okay, what ROM are you on?
Sent from the little guy
gastonw said:
Okay, what ROM are you on?
Sent from the little guy
Click to expand...
Click to collapse
It's the up-to-date stock Samsung ROM I guess. See attachment for infos.
Damn, it seems like the problem just came back without me doing much. I only checked BetterBatteryStats every 30 minutes or so and recieved 1 SMS just a minute ago. Seems like the bug started 20 minutes ago, when battery was around 78%. Now it's draining battery like hell again, Spotify stutters, Deep Sleep won't work...
Guess I'll have to pull the battery again.
Since I'm pretty new to all this: What kind of information would be useful to narrow down the source of the problem?
I can provide my BetterBatteryStats screenshots and logcat/dmesg files as well as my Android Battery Stats screenshots.
Is there anything else I could post?
Yeah, screen shots of partial and kernel wakelocks.
Sent from the little guy
I just rebooted the phone, waited for a few minutes and took screenshots.
Here they are.
Okay, this is what you need to do now, drain it empty, charge it (while phone off) till 100 %. Remove the battery, wait for 90 sec or so, put it back and power on.
It's a placebo, but it might work.
Sent from the little guy
Okay, I will try and do the charging overnight. Thanks!
derSchmiddi said:
Okay, I will try and do the charging overnight. Thanks!
Click to expand...
Click to collapse
Good luck man.
Sent from the little guy
I don't know much about kernel and ROM stuff, but I was just wondering...
As far as I understand, the fuel_alerted thing turns on if the battery charge goes below a certain threshold. The old bug with it was that, when recharging, the fuel_alerted thing would sometimes still stay on, even if battery charge is no longer critical.
Could it somehow be possible that this threshold is not set to 15% for me, but something around 80% due to some horrible bug?
This would explain why it suddenly turned on at around 80% when everything was fine before.
We're trying to adjust your fuel gauge and sort of calibrating your battery.
Sent from the little guy
Okay, I did exactly what you recommended.
Everything went well for about 2.5 hours.
Then the fuel_alerted process began again, but this time only for a short while apparently.
It took about 5 minutes kernel wakelock time in a 30 minutes measurement.
Way less than usual and when I check now, it's no longer active.
So. The problem might still be there, or it might not.
Do you recommend going through a few more recharge cycles to get the gauge set properly or do you think this won't make it better?
By the way, thanks for your quick responses!
derSchmiddi said:
Okay, I did exactly what you recommended.
Everything went well for about 2.5 hours.
Then the fuel_alerted process began again, but this time only for a short while apparently.
It took about 5 minutes kernel wakelock time in a 30 minutes measurement.
Way less than usual and when I check now, it's no longer active.
So. The problem might still be there, or it might not.
Do you recommend going through a few more recharge cycles to get the gauge set properly or do you think this won't make it better?
By the way, thanks for your quick responses!
Click to expand...
Click to collapse
Not really.
Now, when it gets to 15% or so plug it in (while phone ON), get battery calibration from play store.
Run the app, when it gets to 100 % hit calibrate. Plug off the device. Turn off.
Take out the battery for 90 sec again, reinsert it and power it on.
That calibration app is another placebo but as I said before, placebos sometimes work.
Sent from the little guy
Since the battery calibration app requires Root access, I flashed a Dorimanx kernel a few hours ago. Then I did a factory reset and the battery-removal thing. 5 hours have passed now without the bug, 3h of which were without wireless access (maybe it correlates with that).
I'll now let the battery (slowly) drain below 15% and then recharge it with phone on overnight. I will use the battery calibration tomorrow and will inform you about the results later.
Thanks man!
Good to know
Sent from the little guy
I did the battery calibration. Bug is still there, no changes
Post you battery details and a couple of BBS screens.
Sent from the little guy
Okay, here are some screenshots.
From the graph you can clearly see when the bug started.
Is it normal to have >26 kworker processes running?
Something else that concerns me: >2h without or with unknown signal. The whole day I was in an inner city area where the signal should be good...
Can you conclude anything from the screenshots?
I will now try something which I also should have tried earlier
I have a spare battery (not original samsung, less capacity) which I just put into the phone.
I'll let it fully charge with phone off and then I will try if the problem persists even with the other battery.
If it doesn't, the problem might come from the battery itself...
Is this a good idea?
No it's not.
You gotta post detailed info there, we can only guess what's draining your battery.
Sent from the little guy
Okay... I posted the screenshots you asked for...
What more should I post?
Hey there,
I have recently bought a Huawei Mate 10 Pro but since from the beginning I have encountered a problem with the Phone Manager's optimisation. It is always within 91-97 percent. Sometimes 89. Why it doesnt reach 100 percent. Isnt that the point in optimizing? What do you think is the problem or do you think there is any problem at all? I have tried to search this but didnt know how to address the problem.
PS: Yesterday I opened up Ultra Power Saving Mode when the battery was on 6-7 percent. I had 6 hours of sleep. When I woke up phone was dead. When I plugged it on battery it showed 3%. Do you think this is a problem. I havent done any battery training with this lhone tough. Is it necessary with the new generation? Thanks
1. It is normal since you always have apps running in the background. when you optimize the phone it kills all apps but restarts the ones that are alwys running like antivirus, phone, messaging, whatsapp etc. thatswhy its never 100 (that is why it is not recommended to "clear all apps" all the time since some people argue that killing all apps and then restarting all background apps drains more battery than leaving them on in the first place.)
my opinion: no problem
2. huawei phones usualy turn off at 2%. i think this is to make sure the phone shuts down properly and prevent loss of data as well as protecting the battery since draining it completely reduces battery life span.
I notice that my phone drains a lot during night time sometimes (10%) but other nights ist just 3-5%. if you relly want your phone to not lose any battery turn on flight mode. bad cell reception can cause the phone to search for reception continously. Also i am not sure how much the power saving mode really does. the samsung power savings mode turns off a lot of things that the huawei does not. from what i can see this mode only turns the screen black and disables background apps. i dont think it will extend battery life a lot.
When i was travelling in australia and the US i often had bad cell reception and noticed that this drained my phone the most... since turning the phone off and on all the time drains a lot of battery, i recommend using flight mode. it not only turns off the hardware parts (antennas) of the phone but also all apps that run in the background simply stop trying to communicate.
Hope this helps.
0alfred0 said:
Hope this helps.
Click to expand...
Click to collapse
Thank you it helped a lot to ease my concerns