Hi guys,
I have a problem with my P30PRO. Battery is not calibrated and the phone shut down at 2%. Have anyone the same problem? Any way to calibrate battery without root?
Thanks
On Huawei phones always shutdown at 2%. This is to preserve battery from complete discharge.
leaving your phone completely discharge ruins your battery. I never let it go less than 35-40%
papavales said:
leaving your phone completely discharge ruins your battery. I never let it go less than 35-40%
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Click to collapse
By using this option though, have you seen the durability of the battery lasts for longer period of time? What is the best practice to keep the good performance of the battery? I used to charge my previous phones below 15% and after a year of use see the performance going down.
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Endoxos said:
By using this option though, have you seen the durability of the battery lasts for longer period of time? What is the best practice to keep the good performance of the battery? I used to charge my previous phones below 15% and after a year of use see the performance going down.
Στάλθηκε από το VOG-L29 μου χρησιμοποιώντας Tapatalk
Click to expand...
Click to collapse
7 months with p20 pro and battery was as healthy as the first day(I m not sure if I would have the same performance in a year) . I used this method by reading some battery expert's article and I fount it make sense. Best way to keep battery as healthy as possible, charge until 95% and full charge once per month, never let it go less than 40%. I always fully charge mine though.
papavales said:
leaving your phone completely discharge ruins your battery. I never let it go less than 35-40%
Click to expand...
Click to collapse
I have not asked how to save the battery. I was wondering why the phone shuts down at 2%. Huawei should fix it in some way recalibrating the % of the battery. The phone will shut down at 0% but the battery still have a little bit of power. It's a non sense to turn off the phone at 2%.
deus_ex_yue said:
I have not asked how to save the battery. I was wondering why the phone shuts down at 2%. Huawei should fix it in some way recalibrating the % of the battery. The phone will shut down at 0% but the battery still have a little bit of power. It's a non sense to turn off the phone at 2%.
Click to expand...
Click to collapse
@Mindow Already answered you. It does that to prevent the battery from completely draining and ruining the battery. It's normal for Huawei phones. Now that you know it shuts down at 2%, don't let it go down till that. A simple google search can show you that almost almost all huawei phones shut down at 2% and it's not a calibration issue
JJay666 said:
@Mindow Already answered you. It does that to prevent the battery from completely draining and ruining the battery. It's normal for Huawei phones. Now that you know it shuts down at 2%, don't let it go down till that. A simple google search can show you that almost all huawei phones shut down at 2% and it's not a calibration issue
Click to expand...
Click to collapse
I've tried a "simple google search" but I've not found any hint. I will find a better phone in the next few week to replace P30PRO and EMUI.
There is video in YouTube with battery drain test that shows p30 pro shutting down at 0%
deus_ex_yue said:
I've tried a "simple google search" but I've not found any hint. I will find a better phone in the next few week to replace P30PRO and EMUI.
Click to expand...
Click to collapse
Didn't meant to sound harsh but that's how it is mate. Anyways, if you're playing a game or watching a video , then it should only shut down at 0%. On regular use, it usually turns it off at 2% so that when you have an emergency and need to make a call, you can turn it on again and do so. I find it unnecessary but i guess they implemented that to prolong the battery life for long term usage. My p20 pro's battery was still amazing up to the day i sold it 2 months ago. Bought it when it launched. Consistently charging from 0% (fully discharged) will ruin the battery.
deus_ex_yue said:
I've tried a "simple google search" but I've not found any hint. I will find a better phone in the next few week to replace P30PRO and EMUI.
Click to expand...
Click to collapse
LOL love your criteria to judge a device.
JJay666 said:
Didn't meant to sound harsh but that's how it is mate. Anyways, if you're playing a game or watching a video , then it should only shut down at 0%. On regular use, it usually turns it off at 2% so that when you have an emergency and need to make a call, you can turn it on again and do so. I find it unnecessary but i guess they implemented that to prolong the battery life for long term usage. My p20 pro's battery was still amazing up to the day i sold it 2 months ago. Bought it when it launched. Consistently charging from 0% (fully discharged) will ruin the battery.
Click to expand...
Click to collapse
You're wrong. When it turns off at 2% and I try to turn on the system says "The phone will shut down in 30 seconds". So no emergency call. Anyway a phone should turn off when indicator turns to 0% (even if there is 10% of power to preserve battery due to a battery health saving system).
deus_ex_yue said:
You're wrong. When it turns off at 2% and I try to turn on the system says "The phone will shut down in 30 seconds". So no emergency call. Anyway a phone should turn off when indicator turns to 0% (even if there is 10% of power to preserve battery due to a battery health saving system).
Click to expand...
Click to collapse
So sell it off and get a samsung. Problem solved. 6 months later, enjoy the amazing half day battery life
JJay666 said:
So sell it off and get a samsung. Problem solved. 6 months later, enjoy the amazing half day battery life
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Click to collapse
People who own both S10+ and p30 pro said that the battery is way better on p30 pro. But I guess he doesn t care about battery life, he only care if it shut down at 0%.
deus_ex_yue said:
You're wrong. When it turns off at 2% and I try to turn on the system says "The phone will shut down in 30 seconds". So no emergency call. Anyway a phone should turn off when indicator turns to 0% (even if there is 10% of power to preserve battery due to a battery health saving system).
Click to expand...
Click to collapse
Does it matter that much? 2% is life and death?
You asked a question and you've been answered numerous times, if it annoys you that much then just sell it.
2% ensures your phone doesn't die and crash in the middle of a shutdown, which could lead to corrupted data.
Servers connected to a UPS are configured the same way - they shutdown when reaching a critically low level, not when reaching 0%, as the server needs time to safely shutdown its services. The 0% of a new battery might no longer be the same 0% once the phone reaches 2+ years, so better to keep some safety margins there.
Just a tiny fact:
I used mate 10pro for full 2 years. Baterry is still holding as on his first day. If this is a criteria for Huawei phone, I'm more than satisfied.
Scientists have said between 80 and 60 percent is the ideal for battery longevity. 3 Times a year run it out completely so that it wont boot up and then fully charge to 100 percent without using it. This is supposed to calibrate the phone to the battery.. Then ideally keep the phone above 60% and below 80%. This is the first phone I have owned for many years that isnt rooted, calibrating is easy when your rooted its just a case of deleting a file to calibrate but this is not an option on non rooted androids.
Related
Ok so this is what i noticed has been happening with my phone...
I wake up in the morning and i unplug my phone from charger at 100% battery life...
after about 1-2 hours of no use (outside of occasional check of time) and no programs running i notice that 25% of life has diminished...
i have turned 3g off and done most of the kaiser tweak settings that help with battery life. for the rest of teh day i can use the phone and battery life runs normally but it seems the first 25 to 30% drops real fast without use
is everyone experiencing this? is it normal?
KP
The problem lies in your first sentence. "I wake up in the morning and unplug my battery." You are charging your battery too much thus killing it's battery life. I only charge my phone in the day while I'm at work. That way I can unhook it when it's fully charge. I would go on ebay and type in OEM battery Kaiser. You can pick one up for 15-30 dollars new.
From what I understand. Leaving your battery in the charger when it is fully charged should not damage the battery as long as its not there for an excessive amount of time but i might be wrong. Either way i have no way of charging the phone during the day as im on the go most of the time so this would mean even if i get a new battery it wont matter because it wile eventually do the same as i have only used this phone for about 3 or 4 months now. any other possibilities or solutions?
or should i just take it as it is and just buy a new battery maybe a bigger seido?
I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.
netboy said:
I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.
Click to expand...
Click to collapse
I do... Maybe I shouldn't?
I would hope it has Overcharge Protection!!!
With NiCad Batteries if you overcharged them you would kill the life of the batteries.
And while all batteries do this LiIon are least tolerant. If you overcharge a LiIon battery, that is without Overcharge protection, the LiIon Battery with BURST INTO FLAMES! Thus the problem with the Sony Batteries that caused all those Laptop battery recalls.
gqstatus0685 said:
You are charging your battery too much thus killing it's battery life.
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Click to collapse
Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.
I have the exact same "problem" with my Tytn II.
Is slows down evenly though. (So the first 5 % of battery vanishes in minutes basically while the last 5 % can last for an hour, when it's half full % will last somehwere in between these two extremes).
Personally I've just interpreted this as poor measuring done by the hardware and/or software. (Ie I don't think the battery performs better the less full it gets as the meter in Windows would have me think)
kilrah said:
Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.[/QUOTE
thanks ill try it out as soon as i get a chance...
kp
Click to expand...
Click to collapse
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
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Click to collapse
Hmm...I don't see how turning my phone off to charge would increase the charging rate dramatically. My phone in standby mode uses 1% every 2 hours.
depends highly on roms and especially on radios.
with a crappy rom, battery could drop as fast as 10% per hour.
with a decent rom, battery drops in standby mode at a rate about 2% per hour.
duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
Click to expand...
Click to collapse
If the phone is on but on standby that barely changes a thing. If it's on, with display illuminated then yes it might take you an extra 20 minutes to charge.. no big deal either.
*UPDATE*
ok so i drained my battery last night completely(turned on navizon, tt7, and skyfire) which took me about at most 2 hours.
Put it in for a charge
woke up at 9 and checked to see and it was 100%
I have push mail set to update every hour and i also run pocket sportscenter autoupdates which updates every 10 to 15 minutes
I used the phone for 5 minutes of calls
5 minutes of web surfing
a few text messages
and the occasional time check
at 6:30 pm battery life was at an amazing 90%
i was thrilled.
i continued to surf the web heavily from 730 to 8
a few more text messages
at 9 battery was at 67%
so i gotta believe that draining the battery helped recalibrate it...
i guess every 2 or 3 months i got to drain it out and give a full charge
thanks for the help guys
really appreciate it
I just bought an Xperia Z phone and tablet yesterday and was pretty exited about it! It works really well, I love the design work and, yeah its just great. Only thing is, the battery is killing me, here's why:
I woke up this morning and unplugged my phone from the charger, it was at 100% of course. I sat down in my couch, checked Facebook and some News websites. Literally 8-10 minutes later, my battery percentage is 91%... 91%!!!!
My brightness is at ~40% no running apps in the background, no live wallpaper, WiFi on, latest Android update.
Is this normal? I was used to my Galaxy S2 lasting a lot longer, and I know I can't compare the two batteries and phones, but if this problem persists, this would mean I wouldn't be able to use my phone for apps and whatnot for more than 1h20m without having to charge it.
I got it yesterday, turned it on and configured the phone without it being in the charger, it was on ~50% when I turned it on and when it reached like ~20% I plugged it in the charger, I don't know if this could have damaged the battery, should I've plugged it in the charger right away? I am saying this because I remember on old cellphones (not smartphones) to get the best from the battery you had to charge it non-stop for like 20h or so.
Sigh, this is a bit frustrating. My Xperia Tablet Z has a great battery btw., absolutely no problem there.
The Xperia Z phone has screen time of 4hrs or so. It's primarily because of the 5 inch 1080p screen which consumes a lot more battery. I have owned my Z for two months and I get a day out of it with 30% battery by the time I hit the sack. For me it lasts 15 hrs or more.
Swraj
how can people stand 40% brightness? its like killing my eyes.
i do 0% brightness with auto on. saves me alot of battery.
swrajjoshi said:
The Xperia Z phone has screen time of 4hrs or so. It's primarily because of the 5 inch 1080p screen which consumes a lot more battery. I have owned my Z for two months and I get a day out of it with 30% battery by the time I hit the sack. For me it lasts 15 hrs or more.
Swraj
Click to expand...
Click to collapse
Do comment only after giving the battery multiple charge cycles. If the same problem persist after 2 weeks, yes you probably need to check what is sucking up the battery.
Do take a look at the graph under "Settings" -> "Power Management" -> "Battery" to take a look at what is the highest consumer.
newtbie said:
Do comment only after giving the battery multiple charge cycles. If the same problem persist after 2 weeks, yes you probably need to check what is sucking up the battery.
Do take a look at the graph under "Settings" -> "Power Management" -> "Battery" to take a look at what is the highest consumer.
Click to expand...
Click to collapse
Ok I will give it some time, but it doesn't look good.
I've lowered my brightness to 0% and the power mgmt tells me that the screen is using up 40% battery, I don't get it..
xQlich said:
Ok I will give it some time, but it doesn't look good.
I've lowered my brightness to 0% and the power mgmt tells me that the screen is using up 40% battery, I don't get it..
Click to expand...
Click to collapse
It means out of all the battery power used, 40% of the time the screen was active and consuming power... I think
Try these
I used to complain like u did at the beginning, but i tried doing these things and it really improved my battery performance....
1- 1st of all it will get better after a week of charging discharging cycles
2- I uninstalled moxier pro
3- Deactivated google now
4- Disable bravia engine 2
5- Disable google chrome and use another browser (boat browser is really awesome and it supports flash)
6- Disable access to my location from location services and activate it only when u need it
if u do these things u will have marvelous battery improvements!!
Lemagex said:
It means out of all the battery power used, 40% of the time the screen was active and consuming power... I think
Click to expand...
Click to collapse
It actually means of all the drain, the screen accounted for 40% of it.
After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,
Hope I could Help You
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
Squatrack Curler said:
After charging my battery fully to 100%, I unplug it from the charger and without even turning the screen on, the battery drains to 92% within one hour. I check the battery stats and there are maybe only a couple wakes during this time.
Sometimes, the battery shows a certain percentage longer than others. Example, my phone will be on 65% longer than it would be on 60%.
Battery still gives me a solid 2 days usage with about 3+ hours screen on time. The service menu also says that the battery is good.
Is there a way to get the battery reading to show more accurately?
Thanks,
Click to expand...
Click to collapse
jeseunpark said:
For your battery problem, I guess you could try calibrating it. And also try to install "Greenify" along with "Clean Master or 360 Security" and try to close all running apps before turning off the screen. I also turn on Stamina Mode when the battery is at 100%, in an attempt to further save battery life. And the result has been kinda meh, but well, battery drains about 1% per hour. It lasts about a day and half with light usage. In my case, light usage being, browsing, youtube videos for about 2 hours, listening to music, social networking and taking some pictures
Click to expand...
Click to collapse
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse
jeseunpark said:
Umm.. IMO, 10-20% is okay. I usually charge the phone when the battery gets around 5%. I read somewhere that charging battery too early can affect the battery's overall standby time (reducing it). It's better not to let the battery reach 0% though.
I had that happen with my Samsung Galaxy Note 2 earlier. I once let the battery dip all the way to 0% many times. After a few charge cycles, I found out that the battery was dead and wouldn't charge at all so I ended up buying a new battery :-/
Umm.. Coming back to our Z1's, could you try putting the phone in stamina mode everytime the phone is kept on standby mode? This boosted my battery life a lot I even put my phone on stamina mode throughout the whole night yesterday to test the battery life again, and when I switched on in the morning, I saw that the battery had dipped by just 2% (standby time of 7 hours). I'm really confused how your battery drops so fast, 100% to 92%.
Could you try calibrating the battery and then putting it in Stamina Mode while on Stanby and tell me the results? I hope I could help :fingers-crossed:
Click to expand...
Click to collapse
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.
Squatrack Curler said:
Hey,
im using greenify (my phone is rooted). Battery is quite good for me though. I get about 3 days with light usage. I start charging my phone again when the battery gets to anywhere between 10-20%.
I read that maybe its better not to let it get so low?
I have no wake locks either.
Click to expand...
Click to collapse
Squatrack Curler said:
Yeah i could try to calibrate it. Im a little confused on what you do to calibrate the battery (ive read way to many opinions on this). Can you please tell me the steps.
Click to expand...
Click to collapse
I used this to help me - http://forum.xda-developers.com/showthread.php?t=1024867
I just bought my Z3C a couple of days ago. First thing I did was charge it fully and then I started using it. It went from 100 to 0% in about 21 hours. During that time a SIM card was inserted only during the last couple of hours, but I did use the phone fairly often. The attached thumbnails show the details.
I did notice that it almost loses no charge in standby. But today I noticed an increased decline during screen on time after standby time. See last screenshot attached.
I expected more from this battery based on reviews and Sony's claims. Is this normal or is my battery faulty? While some here report similar numbers, others seems to get a lot more out of their batteries.
Amplifiction said:
I just bought my Z3C a couple of days ago. First thing I did was charge it fully and then I started using it. It went from 100 to 0% in about 21 hours. During that time a SIM card was inserted only during the last couple of hours, but I did use the phone fairly often. The attached thumbnails show the details.
I did notice that it almost loses no charge in standby. But today I noticed an increased decline during screen on time after standby time. See last screenshot attached.
I expected more from this battery based on reviews and Sony's claims. Is this normal or is my battery faulty? While some here report similar numbers, others seems to get a lot more out of their batteries.
Click to expand...
Click to collapse
You shouldn't expect more from this battery based on reviews, you should just look at what some people got out of their phones.
Give the phone some time to settle in. And don't forget that it's almost summer for us now, more sun means using the screen at a higher brightness so that will also have some impact on your battery life.
Look what kind of useless apps are running in the background and stop them and don't worry about the estimate, it really doesn't mean much. Right now my estimate is 9 days, because I barely touched my phone.
I really don't believe in such a thing as faulty battery. Charge your phone, restart it and see how it reacts then.
Is Stamina mode enabled? If not, then what you have is typical. Getting a full day out of one charge is about all you can expect from a smartphone without some form of battery saving measures enabled.
Dsteppa said:
You shouldn't expect more from this battery based on reviews, you should just look at what some people got out of their phones.
Give the phone some time to settle in. And don't forget that it's almost summer for us now, more sun means using the screen at a higher brightness so that will also have some impact on your battery life.
Look what kind of useless apps are running in the background and stop them and don't worry about the estimate, it really doesn't mean much. Right now my estimate is 9 days, because I barely touched my phone.
I really don't believe in such a thing as faulty battery. Charge your phone, restart it and see how it reacts then.
Click to expand...
Click to collapse
I'd indeed like to hear from people whether or not they get comparable performance. Do you? I'll keep an eye on my battery during the next few days. So you think this is not abnormal?
PuffDaddy_d said:
Is Stamina mode enabled? If not, then what you have is typical. Getting a full day out of one charge is about all you can expect from a smartphone without some form of battery saving measures enabled.
Click to expand...
Click to collapse
I'm not sure at what point I turned on Stamina in the battery cycle I posted. It is turned now, however, and I hope it will make a difference. What do you get out of your Z3C?
Amplifiction said:
I'd indeed like to hear from people whether or not they get comparable performance. Do you? I'll keep an eye on my battery during the next few days. So you think this is not abnormal?
Click to expand...
Click to collapse
Here are my results:
http://forum.xda-developers.com/showpost.php?p=59933232&postcount=48
At the moment I have 3d 10h battery life and still 40% left. Tomorrow after work @ 12 our time I'll charge my phone again, so that's almost 5 days.
(But that's with a lot of idle time)
(Vergeet geen apps te freezen en je telefoon te restarten)
With moderate usage, you should generally expect just about 2 full days of battery life from this phone. And that is with Stamina mode enabled to help the phone sleep when the screen is off. However, this is not accounting for any extreme measures some people take to extend their battery life (e.g. disabling background data/sync). Once you remove these features, you're no longer using the smartphone as it was intended, so it's not a fair comparison.
I can easily get 2 days out of my Z3C before I think about charging it. And I've never used Stamina Mode.
I guess I could install some app to monitor battery usage and stats but I'm not that bothered tbh.
We all manage a variation on the smartphone thing, in terms of data, wifi, gaming, emails, browsing, texts, calls, etc, and its slightly different, in terms of use, from one user to another.
I'd echo the sentiments of another user who said give your battery time to settle in. Give it a full charge, discharge cycle a couple of times, and don't worry too much about it!
Peace.
Thanks for your feedback, guys. I'm currently fully charging and discharging my battery. Several cycles complete.
The best result I've gotten so far is a little under two days with moderate usage and thorough measures to increase battery life. I turn on airplane mode when I go to sleep. Stamina mode is also enabled, but only the reduced performance part. I'm also using 2battery, which turns off WiFi and data when phone is in standby, and turns them back on briefly every 15 minutes. (While I agree that turning off data connections defeats the purpose of a smartphone, I also believe that there is no need for a constant connection when I'm not using my phone. 2battery achieves that. Although I must say it doesn't seem to kick in a lot on lollipop.)
So despite these measures my battery seems weak compared to yours. Anyway, I'll be taking your advice and I'll give it some more time.
Sent from my D5803 using XDA Free mobile app
Amplifiction said:
Thanks for your feedback, guys. I'm currently fully charging and discharging my battery. Several cycles complete.
The best result I've gotten so far is a little under two days with moderate usage and thorough measures to increase battery life. I turn on airplane mode when I go to sleep. Stamina mode is also enabled, but only the reduced performance part. I'm also using 2battery, which turns off WiFi and data when phone is in standby, and turns them back on briefly every 15 minutes. (While I agree that turning off data connections defeats the purpose of a smartphone, I also believe that there is no need for a constant connection when I'm not using my phone. 2battery achieves that. Although I must say it doesn't seem to kick in a lot on lollipop.)
So despite these measures my battery seems weak compared to yours. Anyway, I'll be taking your advice and I'll give it some more time.
Sent from my D5803 using XDA Free mobile app
Click to expand...
Click to collapse
I have like never used Stamina mode, try out these apps:
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
You need to be rooted tho (Which shouldn't be a problem)
Are you using GPS or is it always on?
Your battery is fine. You probably lost some standby life when you put a SIM in it, as that would cause your cell radios to begin seeking your carrier's towers.
Do activate Stamina mode if you haven't already done so.
Dsteppa said:
I have like never used Stamina mode, try out these apps:
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
You need to be rooted tho (Which shouldn't be a problem)
Are you using GPS or is it always on?
Click to expand...
Click to collapse
Thanks for the pointers! I have Better Battery Stats, and will give the other two a go. Sounds like DS Battery Saver goes beyond 2Battery, which just manages data and wifi. It can also kill apps, but I suppose you use Greenify for that?
I am indeed rooted. GPS is always on as far as I know. Haven't really paid attention to it. Why do you ask? Does that consume a lot of power?
Amplifiction said:
Thanks for the pointers! I have Better Battery Stats, and will give the other two a go. Sounds like DS Battery Saver goes beyond 2Battery, which just manages data and wifi. It can also kill apps, but I suppose you use Greenify for that?
I am indeed rooted. GPS is always on as far as I know. Haven't really paid attention to it. Why do you ask? Does that consume a lot of power?
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Click to collapse
Well yeah of course GPS uses a lot, especially when you don't use it, it's just wasted energy so to speak.
Greenify lets apps go to sleep earlier/faster so that they can cause less wakelocks.
With Greenify and DS BS I don't need Stamina mode and many of us are even wondering if Stamina is working most of the times, these two apps I'm certain that they work.
Dsteppa said:
Well yeah of course GPS uses a lot, especially when you don't use it, it's just wasted energy so to speak.
Greenify lets apps go to sleep earlier/faster so that they can cause less wakelocks.
With Greenify and DS BS I don't need Stamina mode and many of us are even wondering if Stamina is working most of the times, these two apps I'm certain that they work.
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Click to collapse
Well, I've been keeping an eye on it for the past week, and I seem to be losing next to no charge when screen is off. My phone is in deep sleep over 75% of the time. (According to Better Battery Stats)
I do seem to be losing 1% charge for every 3 minutes or so while my screen is on. Is that normal? We're not talking gaming or anything demanding, just some browsing and messaging.
Amplifiction said:
Well, I've been keeping an eye on it for the past week, and I seem to be losing next to no charge when screen is off. My phone is in deep sleep over 75% of the time. (According to Better Battery Stats)
I do seem to be losing 1% charge for every 3 minutes or so while my screen is on. Is that normal? We're not talking gaming or anything heavy, just some browsing and messaging.
Click to expand...
Click to collapse
I think the best way to measure if it's correct or not, to for example put some movies on your phone and let them play constantly, see how long your phone can manage.
You should get at least 6 hours of on screen time using that method
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
nzzane said:
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
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Click to collapse
Good that it's too late, because it's incorrect. This suggestion dates back to the days of NiCd batteries which had "memory effect". Li-Ion batteries found in modern devices for at least the last several years and definitely since the beginning of Android don't have this effect, but have something else - when you drain the battery completely, you cause damage to the battery cells, and it can withstand only a few of these full-draining cycles before losing significant part of its charge capacity. This is why both laptops and phones have protective measures to turn off the phone completely before the battery reaches a dangerous drained state. And as the batteries go bad and their "low percentage" scale becomes unreliable (not able to sustain operation currents with low charge), these protective mechanisms can fire too late - which in turn can cause storage corruption to occur, if the power is lost gradually and not abruptly during operation.
To another poster that doesn't believe in faulty batteries - he better should. Batteries go bad with time and charge-discharge cycles, they're harmed by complete discharge, and can go bad in several other ways. However, I wouldn't expect a battery to start its life damaged - quality control of the manufacturer should prevent this.
My results for reference - I have ~2-3 hours a day SOT, 1-2 hours tethering, have several phone calls, messages and mails - and the phone is usually upwards of %50 at the evening. I have to run it through ~4 hours navigation to reduce it to sub-20% towards the end of the day, and actually see no reason why a smartphone should hold any longer - it's routinely recharged every night. The main problem for smartphones, to me, is not surviving till the end of the day.
nzzane said:
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
Click to expand...
Click to collapse
Thank you for sharing, but that advice is about as outdated and useless as changing your car's oil every 3000 miles. Batteries simply don't work that way anymore and some studies show that battery life is actually reduced when you perform full charge cycles instead of shorter recharges throughout the day.
Edit: looks like someone else best me to it :-/
Sent from my Xperia Z3 Compact
Jack_R1 said:
Good that it's too late, because it's incorrect. This suggestion dates back to the days of NiCd batteries which had "memory effect". Li-Ion batteries found in modern devices for at least the last several years and definitely since the beginning of Android don't have this effect, but have something else - when you drain the battery completely, you cause damage to the battery cells, and it can withstand only a few of these full-draining cycles before losing significant part of its charge capacity. This is why both laptops and phones have protective measures to turn off the phone completely before the battery reaches a dangerous drained state. And as the batteries go bad and their "low percentage" scale becomes unreliable (not able to sustain operation currents with low charge), these protective mechanisms can fire too late - which in turn can cause storage corruption to occur, if the power is lost gradually and not abruptly during operation.
To another poster that doesn't believe in faulty batteries - he better should. Batteries go bad with time and charge-discharge cycles, they're harmed by complete discharge, and can go bad in several other ways. However, I wouldn't expect a battery to start its life damaged - quality control of the manufacturer should prevent this.
Click to expand...
Click to collapse
PuffDaddy_d said:
Thank you for sharing, but that advice is about as outdated and useless as changing your car's oil every 3000 miles. Batteries simply don't work that way anymore and some studies show that battery life is actually reduced when you perform full charge cycles instead of shorter recharges throughout the day.
Click to expand...
Click to collapse
Actually sorry to break it to you, but you are wrong, Li-ION batteries do have a memory effect, since about 2013, researchers have found that they do have memory effect.
nzzane said:
Actually sorry to break it to you, but you are wrong, Li-ION batteries do have a memory effect, since about 2013, researchers have found that they do have memory effect.
Click to expand...
Click to collapse
Well, thanks for showing me something new. However, this is a very different effect from NiCD. While in NiCD this effect would prevent the battery from taking a full charge when repeatedly not discharged fully, in the research you've showed there are 2 very important points:
1. What matters is not the discharge, but rather a charge. Charging not fully is a way to trigger this effect. On the other hand, discharging partially (like in NiCD) doesn't trigger it. This point makes the info, while indeed interesting by itself, irrelevant to the current discussion, and keeps your previous suggestion wrong and bad for the battery.
2. If kept charging a bit longer - the battery would still charge fully, though it would take a different amount of time from the expected. For night time charging, when the phone is connected to the charger for several hours more than it's needed to actually regain the charge, I'd guess that most of the time it does the job of filling the battery properly even after an incomplete charging cycle.
[edit]
After reading it again - actually there is a third point that makes your suggestion even much worse than I thought it is:
This memory effect that you've pointed to is triggered by having an incomplete charge followed by a complete discharge. That means, incomplete charge with incomplete discharge don't cause it - a complete discharge is required. And when you receive a new phone, the battery isn't fully charged - so if someone goes by your suggestion:
nzzane said:
...after getting a new battery/phone you should always drain it fully and then fully charge the battery...
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Click to collapse
He would actually be triggering the memory effect you've linked to, on its bad side!
And just for reference, here is a recent article from 2015 that is far less technical, but does a great job of explaining battery behavior in practical terms that average people can understand:
http://www.digitaltrends.com/mobile/expert-advice-on-how-to-avoid-destroying-your-phones-battery/
Hello, I hope all of you are well and I can get a reply or suggestion from you guys for this.
I have a new P20Pro. Bought it on the end of October.
The battery life is absolutely great with almost two full days of usage.
The issue I got is this.
When I am using my phone and it comes on the last 10% of battery it staets droping by 2-3% immediately. So it will go from 10 to 7 and then 4 and then 2 and immediately shut down.
The whole thing would happen to 3-4 mins in total.
When it gets to 2-3% it says it will shut down in 30secs and never goes to the last 1% or 0%. The other thing that bothers me, connected with what I said before, is that when I connect it to the charger when it turns off completetly, usually starts charging from 2-3%, almost never starting from 0. Today for example turned down when it was 4% and started charging from 12%>
I have tried almost everything, recalibrating the battery, doing the charging cycle correctly, wiping the cache and factory resetting it and also chenging the settings but nothing seems to be working.
Any ideas please ?
What you describe is usually a battery problem on older phones and a new battery remedies that. Mine us also in a bit of hurry ti switch off below 15% so I make sure to keep my juice always relatively high. I might take it for replacement of battery in a few months to have a new one after 500-600 cycles [emoji4]
Sent from my CLT-L29 using Tapatalk
Mine starts shutting down at 6% I think! It's caught me out a few times, thinking I had at least another 20 minutes.
I can't complain about the battery life though so no big deal really. Conversely when I unplug from a full night's charge it can stay at 100% for ages whilst using it.
I'm guessing either calibration is a bit off or EMUI is really going the extra mile to protect your battery from being damaged by draining too low.
almost 2 full days usage?
man I barely get one day, the battery is being drained quite quick
I just switched from OnePlus 5T to P20 Pro, and the battery life of the first is way ahead (and recharges much faster)
maybe there's a problem with my p20pro?
leozin said:
almost 2 full days usage?
man I barely get one day, the battery is being drained quite quick
I just switched from OnePlus 5T to P20 Pro, and the battery life of the first is way ahead (and recharges much faster)
maybe there's a problem with my p20pro?
Click to expand...
Click to collapse
Hi!
Follow the below steps.
Phone manager>Do optimise>tap on battery icon>Optimise battery usage. And dont let any apps to run in background. Using auto start manager you can control the apps which are running in the background.
and please post the battery usage details and check which app is consuming more battery & kill the apps which are consuming more battery
Hopefully it would help.
[email protected] said:
Hi!
Follow the below steps.
Phone manager>Do optimise>tap on battery icon>Optimise battery usage. And dont let any apps to run in background. Using auto start manager you can control the apps which are running in the background.
and please post the battery usage details and check which app is consuming more battery & kill the apps which are consuming more battery
Hopefully it would help.
Click to expand...
Click to collapse
Hi Thanks for your help
I will definitely do it and will keep yous updated
Meanwhile, let me bring something else: My phone doesn't supercharge. Even when I use the original cable + charger (and plugged straight into the wall) it doesn't fast charge. Doesn't display that it is being supercharged or something and it will take about 3 hours to finish charging.
This is a brand new phone which I got last week.
I used to have an OnePlus 5T which recharges pretty quick but this P20 Pro, although it is a beautiful phone, charges like my old Moto X.
Anything else I need to setup in order to enable supercharge?
leozin said:
Hi Thanks for your help
I will definitely do it and will keep yous updated
Meanwhile, let me bring something else: My phone doesn't supercharge. Even when I use the original cable + charger (and plugged straight into the wall) it doesn't fast charge. Doesn't display that it is being supercharged or something and it will take about 3 hours to finish charging.
This is a brand new phone which I got last week.
I used to have an OnePlus 5T which recharges pretty quick but this P20 Pro, although it is a beautiful phone, charges like my old Moto X.
Anything else I need to setup in order to enable supercharge?
Click to expand...
Click to collapse
Download Ampere from the app store and see what the charging rate is.
When almost empty I get a rate of 4200mA ish.
The more it charges the lower the charging rate.
john306 said:
Download Ampere from the app store and see what the charging rate is.
When almost empty I get a rate of 4200mA ish.
The more it charges the lower the charging rate.
Click to expand...
Click to collapse
When I use the original chargers from Huawei, it won't get past 1800mA
Then I went to visit a friend who got a Mate 20 Lite, he has a fast charger and I tested his in my p20pro and it went to ~2300mA (and then it displays in my phone "fast charge"). However, if we use on his phone, it will go more than 3500mA
The supercharger won't come by default in the box? I'm asking because when I got at home I checked the output of my recharger and it shows 4.5-5v -> 2A, it seems it isn't the fast/super charger
Hi there! What you have described with the battery percentage going to 3% and then immediately to 0% is an issue on ALL Huawei phones. I had previously owned a P10 LITE, a Honor 7C, Huawei P20 PRO and Mate 20 Pro. They all do this. I suspect it has something to do with the reserved battery percentage . It shuts down quickly so that it can keep 2 % and not drain completly. I do not know the benefit of this but all phones do it, however Huawei's software implementation is so poor that it actually displays wrong percentages. It has nothing to do with the battery being old. They do it straight out of the box and ufortunately do not know of any solution to this.
Just an update:
I had a chat with the store which sent me the phone and then they sent me the correct charger with supercharge.
Now it works well and on Ampere it shows 4.5A
xhers.maska said:
Hello, I hope all of you are well and I can get a reply or suggestion from you guys for this.
I have a new P20Pro. Bought it on the end of October.
The battery life is absolutely great with almost two full days of usage.
The issue I got is this.
When I am using my phone and it comes on the last 10% of battery it staets droping by 2-3% immediately. So it will go from 10 to 7 and then 4 and then 2 and immediately shut down.
The whole thing would happen to 3-4 mins in total.
When it gets to 2-3% it says it will shut down in 30secs and never goes to the last 1% or 0%. The other thing that bothers me, connected with what I said before, is that when I connect it to the charger when it turns off completetly, usually starts charging from 2-3%, almost never starting from 0. Today for example turned down when it was 4% and started charging from 12%>
I have tried almost everything, recalibrating the battery, doing the charging cycle correctly, wiping the cache and factory resetting it and also chenging the settings but nothing seems to be working.
Any ideas please ?
Click to expand...
Click to collapse
Goto Phone Manager touch power saving->Optimize.Phone Manager will rapidly identify apps or features that are rapidly drainning the battery.Touch the Optimize button net to each or feartures to disable it and start saving power.You can touch Recover to re-enable the app or feature.When you remove an app from the protected apps list,your phone will close the app automatically when you turn off the screen to save batterry.