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My battery has horrible life. I'm rooted running evil fascination and have done all the things that typically help with battery life such as disabling gps and wifi, and lowering brightness. In fact my brightness is currently as low as it gets and my battery use shows my display as 99% of my current usage. Even though I just took my phone off the charger 15 minutes ago and it's already at 85%. I know my screen can't possibly have taken that much battery so fast. It also takes about 4 hours to charge from zero to 100 because it's draining so fast. Can anyone give me some advice? I downloaded an app that shows my current mah or whatever but I don't know what that means. I notice when it's at 270mah my battery drains fast which is most of the time but a few times it has been at 2 mah and it doesn't drain fast then.
sounds like a rogue app keeping your phone/screen running when off.. I had the same problem a while ago, 96% screen usage and taking 6 hours to charge then draining to zero in an hour and a half.. unfortunately the only thing that fixed it for me was a complete data/cache wipe and reflash of the rom, I think I was on superclean 2.9.2 at the time.. could be the battery being wonky also, you might wanna look into the battery calibration app on the market or wiping batt stats in CWR
tapatalked from my stock VZ Fascinate
Okay so every time you flash a ROM, people say you should calibrate your battery, that is fully charged it, let it drain, then recharge back to full to optimize battery life.
My question is, why the heck would that affect the actual battery consumption? Sure it makes sense that if it's not calibrated, it may incorrectly report the wrong % of battery left but how does that change how long the battery lasts. It would make sense that after a calibration, the phone would more accurately report the percentage of battery left but I don't understand how it changes the rate it at which battery juice is being consumed.
No one knows?
just a guess: could there be build in shut-offs when the % reaches a certain level? So if the % says 0, the phone shuts off even if there is more juice there?
Calibrating the battery doesn't affect battery life, period. Calibrating the battery can however affect the accuracy of any kind of battery percent monitoring apps you may have.
joehunni said:
Calibrating the battery doesn't affect battery life, period. Calibrating the battery can however affect the accuracy of any kind of battery percent monitoring apps you may have.
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Click to collapse
That's what I thought too! It's just that, there's always so many people complaining about bad battery life and then other people telling them to calibrate the battery and they come back saying "oh yayyy, my battery lasts forever now!"
Doesn't make any sense
Just draining it and fully recharging it is NOT calibrating the battery. That is not the procedure to do a calibration.
It *can* lead to better life by recalibrating the full point and empty points. If the ROM isnt reading the battery life properly then it can look like you have much less battery than you do, or that it is draining much faster than it is.
By my understanding, because of the way modern phones are set up to display battery life, sometimes the meter will read differently from the actual battery life. Your meter might read 100%, but you really might only have 85% or 90% charge. Calibrating helps to bring these measurements back into parity, increasing the perceived battery life of your device by allowing you to use a full, accurately read charge.
One thing I do know, the bit about letting your battery run to empty and then recharging is outdated information. The batteries we use nowadays don't benefit from that kind of behavior.
Calibration is for the phone not the battery, the phone needs to adjust itself to the battery %, seems to fix itself for me over time, through reboots, etc seems to get really good battery life, placebo effect is in motion....
Shot from my sharp shooter in 3d
cleanrom2.9.5
I have seen lots of threads about people complaining about very poor battery life after flashing roms. Sometimes battery charges to 100% quickly and discharges very quickly.
So, these are the solutions. These solutions are IN ORDER. If the first one has no effect, then try the next one. If the second one doesn't work, then try the third one.
Now-
1) Try reflashing your ROM.
2) If reflashing your current ROM doesn't work, that probably means the ROM itself has poor battery life and you should change it. Stock ROM's have the best battery life.
3) If you are on stock ROM and still having problems, switch off your phone, take off the back cover and remove the battery. If the battery is swollen or the shaped weirdly, this means your battery is dead and almost useless. You need to buy a new one.
I recommend buying only stock batteries manufactured by Samsung because other batteries can be fake, incompatible, or just used batteries sold to you. Don't buy anything else unless you're absolutely sure of what you're doing.
Hopefully I helped.
Re: Solutions to Battery Problems[Newbie Friendly]
General tips for saving your battery-
1) Switch off mobile data whenever you're not using the internet.
2) Change your wifi sleep policy. This can be done by going to wifi settings, pressing menu button and then select advanced.
You can change your sleep policy so that your wifi sleeps when the screen is off.
3) Decrease your brightness! Your screen is responsible for most of the battery drain. Increase your brightness only when you are in bright sunlight or when you're watching videos etc.
4) Switch off GPS. Keeping it on all the time also drains a lot of battery.
5) There is an app called 'Greenify' which hibernates the apps running in the background. This app has increased my battery life. Here a link https://play.google.com/store/apps/...e=google&utm_medium=organic&utm_term=greenify
6) Don't charge your phone when it's at 70%. Wait till it is between 20-30% and then charge it continuously till it reaches 100%.
7) Let your battery completely discharge once every month.
8) Don't use task killers. They use more battery life than they save.
9) NEVER charge your phone overnight. Your phone takes only about 4 hours to charge. Overcharging reduces your battery life
10) If you use a Bluetooth headset, switch off Bluetooth whenever not in use.
11) Using setCPU profiles. This is one of the most effective ways of saving battery. You all know about overclocking, but do you know about underclocking or undervolting? Using profiles, You decrease the clock speed of your CPU when certain conditions are met. These profiles can be on the basis of time, screen off/on, battery etc. So when my screen is off, it automatically reduces the clockspeed which saves battery
chalak said:
General tips for saving your battery-
1) Switch off mobile data whenever you're not using the internet.
2) Change your wifi sleep policy. This can be done by going to wifi settings, pressing menu button and then select advanced.
You can change your sleep policy so that your wifi sleeps when the screen is off.
3) Decrease your brightness! Your screen is responsible for most of the battery drain. Increase your brightness only when you are in bright sunlight or when you're watching videos etc.
4) Switch off GPS. Keeping it on all the time also drains a lot of battery.
5) There is an app called 'Greenify' which hibernates the apps running in the background. This app has increased my battery life. Here a link https://play.google.com/store/apps/...e=google&utm_medium=organic&utm_term=greenify
6) Don't charge your phone when it's at 40%. Wait till is below 10% and then charge it continuously till it reaches 100%.
7) Let your battery completely discharge once every month.
8) Don't use task killers. They use more battery life than they save.
9) NEVER charge your phone overnight. Your phone takes only about 4 hours to charge. Overcharging reduces your battery life
10) If you use a Bluetooth headset, switch off Bluetooth whenever not in use.
Using these tips, I have gotten almost 2 days of battery life on stock Roms and a whole day of battery life on custom roms like CM10.1 and CM7
If you have your own battery saving tips, please share and help expand this list.
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I'm interested in the greenify app, the only problem is that it does not support stock gingerbread which can give the most juice. Do you have any other recommendations of similar apps?
stevenkyk said:
I'm interested in the greenify app, the only problem is that it does not support stock gingerbread which can give the most juice. Do you have any other recommendations of similar apps?
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Click to collapse
Greenify is a unique app and I am yet to come across a similar app.
You can try this one but it is paid - https://play.google.com/store/apps/details?id=com.elsdoerfer.android.autostarts
Sent from my pet - Megatron™
6) Don't charge your phone when it's at 40%. Wait till is below 10% and then charge it continuously till it reaches 100%.
9) NEVER charge your phone overnight. Your phone takes only about 4 hours to charge. Overcharging reduces your battery life
Are you sure about these? Because I've read that phones only take how much ever charge that they need, so charging overnight isn't a problem. And i've also heard that letting the battery charge fall below 40% actually reduces the life over time.
Ajayr64 said:
6) Don't charge your phone when it's at 40%. Wait till is below 10% and then charge it continuously till it reaches 100%.
9) NEVER charge your phone overnight. Your phone takes only about 4 hours to charge. Overcharging reduces your battery life
Are you sure about these? Because I've read that phones only take how much ever charge that they need, so charging overnight isn't a problem. And i've also heard that letting the battery charge fall below 40% actually reduces the life over time.
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Yes, I am sure and it is something I have verified.
Overcharging kills the battery.
I saw a video once of an evo 3d. The battery almost completely died after it was charged for 3 days
And you should always charge only when your battery is low.
This will ensure longer battery life
chalak said:
Overcharging kills the battery.
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Normally, when the battery is fully charged, the chip that controls the charging process reduce the current exponentially to 0: this avoid the overcharging.
I think all smartphones have the charging chip control integrated (an USB cable is simply a power source, not a battery charger), so I hope we can leave the phones on charge all the night without any problem. I do that always and never had problems.
Clearing battery stats has no effect whatsoever on battery life ...
Prawesome said:
Clearing battery stats has no effect whatsoever on battery life ...
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Click to collapse
Well, if you see again, I never mentioned that clearing battery stats saves battery. It is for those people whose phone charges very quickly with big increments, which typically happens after changing ROM's.
Sent from my pet - Megatron™
smanq said:
Normally, when the battery is fully charged, the chip that controls the charging process reduce the current exponentially to 0: this avoid the overcharging.
I think all smartphones have the charging chip control integrated (an USB cable is simply a power source, not a battery charger), so I hope we can leave the phones on charge all the night without any problem. I do that always and never had problems.
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It seems both of us have read conflicting and contradicting things.
Sent from my pet - Megatron™
chalak said:
Well, if you see again, I never mentioned that clearing battery stats saves battery. It is for those people whose phone charges very quickly with big increments, which typically happens after changing ROM's.
Sent from my pet - Megatron™
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Quoting Dianne Hacborn(Android Framework Engineer):
"Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away."
Its just a myth mate..
And also, it's a myth that you should let ur phone charge reach 10% or get fully discharged before charging. This actually leads to decrease in the battery life over time.
Prawesome said:
Quoting Dianne Hacborn(Android Framework Engineer):
"Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away."
Its just a myth mate..
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Click to collapse
I am aware of what you are saying and I fully agree.
But I have never mentioned that clearing battery stats increases battery life!
Tips to increase battery life are in the 2nd post. I simply said that if you clear your battery stats, UI will show you battery which is more accurate to the actual battery level.
Why are you arguing over something I never said?
Sent from my pet - Megatron™
Ajayr64 said:
And also, it's a myth that you should let ur phone charge reach 10% or get fully discharged before charging. This actually leads to decrease in the battery life over time.
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Click to collapse
Think of your battery as a person working out and charging is like taking rest. If the person's ability is to do 100 reps yet he takes rest after only 60 reps and keeps doing that continuously, he won't be able to do 100 reps after a few weeks!
Look at the logic mate.
Sent from my pet - Megatron™
chalak said:
I am aware of what you are saying and I fully agree.
But I have never mentioned that clearing battery stats increases battery life!
Tips to increase battery life are in the 2nd post. I simply said that if you clear your battery stats, UI will show you battery which is more accurate to the actual battery level.
Why are you arguing over something I never said?
Sent from my pet - Megatron™
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I am not arguing :/
I am just trying to help make your guide more Informative. Read what I have put in bold letters mate. It doesn't affect the battery level shown to you
Prawesome said:
I am not arguing :/
I am just trying to help make your guide more Informative. Read what I have put in bold letters mate. It doesn't affect the battery level shown to you
Click to expand...
Click to collapse
Sorry if I sounded rude.
And thank you for your advice.
Sent from my pet - Megatron™
Updated
Sent from my pet - Megatron™
(I was Chalak)
Thanks for tips
You misunderstood me :'D
Clearing battery stats does not:
Affect battery life
Affect the battery level displayed to you
The only thing it does is, it wipes the history of battery consumption by each app. I am talking about the battery consumption by each app shown to you in Settings>About phone. If you clear the battery stats.bin file, the only thing that geta erased is this
Prawesome said:
You misunderstood me :'D
Clearing battery stats does not:
Affect battery life
Affect the battery level displayed to you
The only thing it does is, it wipes the history of battery consumption by each app. I am talking about the battery consumption by each app shown to you in Settings>About phone. If you clear the battery stats.bin file, the only thing that geta erased is this
Click to expand...
Click to collapse
This! Anything about wiping battery stats is not a myth anymore, so please stop misleading people,
Also "6) Don't charge your phone when it's at 40%. Wait till is below 10% and then charge it continuously till it reaches 100%."
Not true! Charging your battery around 50% is the most efficient way to keep lithium battery alive longer. A discharge once a month is also recommended.
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Asus ZenFone Max Pro M1's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Drains fast when not un use alsonlooks like 2500 mah battery
Aravind005 said:
Drains fast when not un use alsonlooks like 2500 mah battery
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Click to collapse
Can you Please share the usage Graph of your Device ?
Mine drains around 5-6% at night in standby! Its more than average considering the large 5000mah battery
Greenify / Freezing / disabling Google play services, or going nogapps improves battery life x10 times. In other cases, frustrate the app by denying it all permissions, so that it force closes every time it launches automatically (wakelock and drain prevented). Its an analogy to tying a runners shoelaces.....can't run, can't consume battery.
There are how many updates come till now for this phone? Please someone confirms it.
Draining issue is high.
Drained 29% last night..
Seems like software issue
maharshi14 said:
Draining issue is high.
Drained 29% last night..
Seems like software issue
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Click to collapse
That's true .my phone droped 20% charge last night.
It shows that the battery is consumed by android system is very high. I think it is a software issue
Same problem here after update
Battery drains overnight
I'm using custom rom aex and my battery drain is just 2% for 9hrs 30mins
Same problem here , can it be fixed with future updates ??
Padmavathis said:
Same problem here after update
Battery drains overnight
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Click to collapse
Asus CC told it's just a battery calibration issue after taking my device details
Did they mention when they will release the update to fix this issue of battery calibration ??
Jude barretto said:
Did they mention when they will release the update to fix this issue of battery calibration ??
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Click to collapse
Nothing was told regarding update
In my case solution was to Calibrate the battery
Asus CC will tell the procedure
Can u please tell how to calibrate the battery ?
Jude barretto said:
Can u please tell how to calibrate the battery ?
Click to expand...
Click to collapse
Use your phone till it becomes 0% and let it shut down Now press power button for 30 secs and make sure no battery is left to reboot the phone
Charge your phone till 100% with phone turned on/off (but don't use the phone while charging)
After 100% remove from charging and start normal usage till it becomes 0% again and now repeat same procedure 3-4times
Contact Asus CC they might provide better solution for your device after checking device details
Bhuvi100 said:
I'm using custom rom aex and my battery drain is just 2% for 9hrs 30mins
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Click to collapse
Yeah, custom roms are highly optimized though it's unofficial right now I didn't think it would be this good. Well I'm on stock rom still and use greenify which does help a bit, the drain was 4% in 8 and a half hour.
the problem is on the apps that consumes power and data like facebook, instagram and some other similiar apps.
possible fix is disable them. and use fb instag by chrome. it makes the ram usage a bit less because the app wont use ram but "move" the ram usage to chrome.
ideal drain is more, after update and a bug also found Sim 1 hd capable.
I've noticed that my used ram is always above 2.0 gb. I wonder what's running in background consuming this much ram ?, this also might be the root cause of ideal drain I guess.
I did calibrated my battery with the root method and the charge-discharge methods two times now, but still it charges from 0 to 100 in 40 minutes (which is not possible, it's not really 100%) the phone keeps charging according to accubattery and the battery tab in configuration
If I unplug right when it says 100% the batter drains hella fast (even if i dont use it)
The solution is keep the phone plugged until it says charged in rhe battery screen which takes an extra 40 minutes before reaching 100%
But how to fix this wrong information? Is driving me nuts
Probably the cable?
If I reboot the phone when it reaches 100% it drops to about 85%, and when it reaches 100% and reboot it again it drops but now to 90~ and so on for a few times
Any help would be appreciated! I'm using AOSIP btw, but this have happened in all roms
Heyyo, from what I was told for battery calibration the only proper way to do it is to run EUI ROM for about a week.
If you're inclined to try that to fix battery calibration? I'd recommend the versions by ChrisBalGreece. Debloated and already has good mods to make EUI ROM more enjoyable and less odd. :good:
After that? You can try a custom Oreo ROM again and battery should be properly calibrated.
Sometimes too with custom ROMs I've observed that the Quick Charge 3.0 isn't as accurate as it should be and can even stop charging if it thinks the battery temperature is too high... Unfortunately without updated kernel source code from LeEco it's something we cannot 100% solve so I'd recommend trying to charge with a 5V 2Amp charging block and see what happens as well.
ThE_MarD any eui 5.8 rom will work? i have flashed your 30s firmware of your lineageos thread will it work with that or i have to change firmware?
i have the original charger and cable
Well, I used to have that annoying problem, I made a research to find a solution, and something worked for me, Now my battery is perfectly calibrated. Well, I don't know if it would work for anyone else, but, you don't lose nothing trying right?
The first thing I did was install this: https://play.google.com/store/apps/details?id=flar2.exkernelmanager , and Configured the "saver mode" to low frequency of processor and activated it. Then I installed this https://play.google.com/store/apps/details?id=com.slash.batterychargelimit and activated the limit to 95% for high level and 90% to low level of battery charging, and after a couple of times charging and discharging my battery with that method now my battery magically calibrated itself, and now I can install any Oreo ROM with no problem, of course it is not necessary to use that saver mode all the time, but works really good. I have to say that now I am using "personalized resurrection remix" and it works fast as hell with the most complete tools for personalizing the phone (the best one for me), and it has an extreme good performance for gaming, of course not the best for battery, but there you can use and configure the saver profile of the app I mentioned, and you will have the best ROM available now. (Tryed a lot of them).
Thanks for reading. (Don't forget to install magisk for root, without that, nothing will happen)