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What's Draining Your Android Battery?

by on July 24, 2019
in Phones and Mobile, Cell Phones, Mobile Apps, Android Apps, Tips & How-Tos, Tech 101 :: 173 comments

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If you find your Android battery is regularly emptied before you manage to Uber that evening ride home, don’t fret – it’s possible you can squeeze more life out of it by optimizing some phone settings. While some battery drain may be due to badly designed or adware-ridden apps that are constantly calling home, everyday phone activities are often the culprits – apps that frequently get online for updates, apps waking the phone screen, the high-definition phone screen itself which takes a lot of power to light up those pretty pixels…

Why batteries drain

“Batteries only have a certain lifespan, measured in charge cycles. This means they can be fully charged and discharged only so many times. “Once a phone battery’s charge cycles are spent, metrics such as talk time begin to degrade and the user begins to notice their phone isn’t lasting as long as it used to,” says Josh Galindo (Director of Training at uBreakiFix).

(This means that if you’re thinking of buying a refurbished phone, you should check with the seller that the battery was replaced, says Galindo. Otherwise, you may find its lifespan start to degrade more quickly than expected because it’s spent a certain number of charge cycles already.)

Another issue is that while other phone hardware such as screens and motherboards have developed quickly to be better and more powerful, battery technology has not seen a similar advancement, so even brand-new phones with larger charge capacities may not last any longer than their predecessors. “For people to see a significant improvement in the life of their smartphones, we’ll likely need to have a major breakthrough in what type of battery technology is in use,” says Galindo.

And, while we always recommend downloading software updates, older phones that have been upgraded to the very latest OS version may also experience battery drain as a result. “In theory, this shouldn’t occur, but often it does because the software is supporting newer functions that the hardware might not have been specifically designed for,” Galindo says. “At some point, software always outpaces the device itself and very often adds additional strain.”

Happily, newer iterations of the Android OS have introduced battery saver features that economize how various apps use up juice and should help you eke a little more use of your phone for now.

What’s new for Android batteries  

The latest version, Android Q introduces Dark Theme. This is a system-wide dark mode that helps save battery life. This is especially helpful for phones that use OLED displays, like the Samsung Galaxy S10 and the LG G8, since black pixels are essentially pixels that have been turned off.

Android 9 Pie has an Adaptive Battery mode that learns your daily routine so that only apps that your regularly use will run in the background. And Background Restrictions in Android Pie let you limit access to apps' ability to run when you're not using them. There's also a new auto brightness mode that detects ambient light and adjusts your display accordingly. 

Android 8.1 Oreo, introduced automatic ‘wise limits’ that curtail how much background apps get to use battery power for processes, as well as prevent non-essential apps from requesting your location (GPS being one of the biggest battery drains, as anyone who has ever used their phone for navigation will be familiar with). There’s also a beefed-up settings menu that newly shows how much battery apps used up versus how much they’re in use, and how long your screen (that battery hog) has been on, as well as the approximate time left based on current usage.

Almost a third of Android users are using Android 8 Oreo, about 20% use Android 7 Nougat, about 17% use Android 6 Marshmallow, and 15% are using Android 5 Lollipop. Android Q is still in beta and due to roll out starting in the fall. While most Android phones released in the last couple years should receive an update to Q in the coming months, if you're one of the many on an older version of Android, there's still plenty you can do to increase battery life – without changing how you use your phone (too much).   

How to improve your Android phone battery life

(Note: This information covers Android 5 phones and newer, so names of folders may slightly vary – for example, “Battery” settings may be “Power” settings on some phones.)

1. Check which apps are draining your battery

In most versions of Android, hit Settings > Device > Battery or Settings > Power > Battery Use to see a list of all apps and how much battery power they're using. (In Android 9, it’s Settings > Battery > More > Battery Usage.) If an app you don't use often seems to take up a disproportionate amount of power, consider uninstalling it.

In Android 9, you can see how power-hungry apps as using battery by tapping it. For some apps, you'll be able to turn on "Background restriction." For all apps, keep "Battery optimization" on.

2. Uninstall apps

Delete apps you don't use from a single menu by heading to Settings > Apps > All. Tap on each app and hit Uninstall to remove it as well as any data it has created.

Or, buy premium version of your favorite apps. Apps with ads can eat up extra battery thanks to running ads (or if their ads are badly designed thereby hogging the juice), so if you find a favorite is using a lot of power, going for its premium ad-free version could help.   

3. Never manually close apps

Despite the popularity of task-killer apps for Android, manually closing running apps doesn't help battery life, a myth recently debunked by both Apple and Google. In fact, closing an app can even very slightly damage battery life according to Android's SVP of Android, Chrome and Chrome OS, if the phone system requires it to run again (or when you open it again).

4. Remove unnecessary widgets from the home screen

Many Android apps, including social networks, weather apps and news apps, come with widgets that sit handily on the home screen for real-time updates. However, widgets are battery drainers due to their constant syncing with the mothership or power-sucking animations. If you don't need a permanent window into Twitter, or regular updates on the weather, remove the superfluous widget by pressing and holding it, then dragging it to the trash can icon.

5. Turn on Airplane Mode in low-signal areas

Smartphones use more power when trying to connect in low-signal areas. If you can't get a signal, turn on Airplane Mode by swiping down and tapping the Settings wheel. If your low-signal area is, say, an office or someone's home, you can turn on Wi-Fi (with Airplane Mode enabled) instead to stay connected. Then restart your cellular connection when you're in an area with better coverage.

On the flip side, disabling Wi-Fi may not always save battery life. Your phone uses less energy to connect to wireless than cellular networks, while Wi-Fi also helps phones determine location – handy for paring back the need for power-hungry GPS.

6. Go Airplane Mode at bedtime

If you’re caught charger-less overnight, killing all connectivity – Bluetooth, cellular, Wi-Fi, GPS - will help your battery last till morning. Plus, it helps avoid that insomnia-causing blue light

7. Turn off notifications

Getting real-time updates of what's going on in your apps is handy for things like email or social networks, but many apps automatically demand permission to send notifications as well for reasons that are much less useful. Turn off notifications by heading to Settings > Apps, then visiting less necessary apps and unchecking “Show notifications.”

Android 7.0 makes it very easy to fine-tune further: Head to Settings > Device > Notifications to manually adjust notification levels for each app – you can choose to never show notifications or its battery-friendly compromise: show silently without waking the screen, vibrating, or pinging.  

On Android 8, there are even more granular options. Head to Settings > Apps & Notifications, then click on particular apps. You’ll be able to control what type of events the apps can send push notifications for (for example, on WhatsApp, the failure of a message to send), as well as how they can send these alerts (silently, vibrating, or with sound).

8. Don’t let apps wake your screen

On the other hand, if notifications are necessary, prevent apps from waking the screen when they do send them through. Head to Settings > Display and select to turn off Ambient Display (which means no app notifications will cause the screen to wake). In Android 8 and higher, you can choose to leave Ambient Display ‘on’ but toggle off the sub-permission for notifications to wake the screen, so that you can still double-tap the screen or lift the phone to check for alerts.

9. Turn off GPS when not in use

GPS is one of the heaviest drains on the battery – as you've probably noticed after using Google Maps to navigate your last road trip. When you're not actively using navigation, swipe down to access Quick Settings, and toggle it off. You'll be prompted to re-enable it when you use Maps.

Alternately, if you're using apps that require your location, you can head to Settings > Location > Mode (Settings > Security & Location > Location > and select “Battery saving” (where Wi-Fi and mobile networks are used to determine your location) over “High accuracy” (where GPS is also used).

10. Check app location tracking

Some apps track your location and therefore use more battery power than strictly necessary by accessing your GPS. At Settings > Location you can see which apps recently requested your location, as well as how much (low/high) battery it took.  In theory, Android 8 and higher should be paring back how much these apps are using the phone’s location services – but for apps that seem to be demanding more than necessary, head into the apps and manually adjust the permissions individually. 

11. Enable Battery Saver Mode

For Android 5.0 and newer, this feature helps maximize battery life as well as stretch out those last several minutes. For example, animations are pared back, most background syncing is halted and location services turned off (so no navigation on Google Maps). You enable it manually in Settings > Power, where you can also fine-tune specifics such as whether or not to conserve CPU power, screen brightness or vibration feedback and choose whether or not to turn off data connection when the phone is asleep.

On Android 7 and higher, you can additionally set Battery Saver Mode to kick in automatically at 5% or 15% battery left. Starting with Android 

Some phones, such as Samsung Galaxy phones, also have an “extreme power-saving mode” in which data connections turn off when the screen is off, notifications, GPS, Auto Sync and Bluetooth are off, and only essential apps such as text messaging, email and the clock are allowed to run. 

12. Dim the screen – intelligently

If you're using Android 5.0 or newer, head to Settings > Display and enable “automatic brightness” (or “adaptive brightness” in Android 7 and higher), which allows the phone to adapt the display based on the lighting where you are, ensuring the screen is never brighter than necessary.

But if your battery is in dire straits, manually dimming the screen is a good temporary fix until you can get to a charger. Pull down the notifications menu and drag the brightness slider to the very dimmest display level you're comfortable with.

13. Turn on Dark mode

Some Android apps have a dark mode, where the screen uses a black background instead of light colored one. Using the dark mode can help save battery life, especially for for phones that use OLED displays, like the Samsung Galaxy S10 and the LG G8, since black pixels are essentially pixels that have been turned off. 

The latest version, Android Q introduces Dark Theme. This is a system-wide dark mode that helps save battery life.

14. Tone down those live wallpapers

You can kit out your home screen and lock screen with some nifty animated wallpapers that change in ombre or style as the day wears on – but this doesn’t come for free. Save on battery by heading to Settings > Display > Wallpaper to select a static counterpart instead.

15. Decrease screen timeout

You can save a little bit of battery power many times over by decreasing the length of time your phone remains idle before its display automatically goes dark. Head to Settings > Display to adjust Screen timeout to, say, 10 seconds rather than an interval like 30 minutes (which you may have chosen if you were doing something like using the phone for a recipe).

16. Stop vibrating

If your phone is ringing, you don't need it to vibrate as well. Head to Settings > Sound and uncheck “Vibrate for calls”. To really get into battery miser mode, turn off haptic feedback, the handy little vibe when you press virtual keys, also uncheck "Touch vibration" (find this on some phones by going to Settings > Language and keyboard and unchecking “Vibration feedback”).

17. Keep weather updates local

Who doesn't love the weather widget that tells the time and the temperature in one handy, live-updating home screen box? If you've loaded yours up with cities where you've been vacationing, that widget could be contributing to heavy battery drain. Remove superfluous cities from your weather app by heading to Settings.

18. Keep your phone cool

Like Goldilocks’ pilfered porridge, phone batteries should be neither too hot nor too cold. An ideal temperature range for smartphone batteries is around 68°F to 86°F. If a phone is customarily left in temperatures outside this range, especially on the hotter side, it can eventually damage the battery, notes Galindo. 

According to the Battery University blog by Cadex Electronics, phone batteries degrade much faster when they’re hot, whether you're using the phone or it's idle. Avoid leaving your phone on the dashboard of your car on a sunny day.

19. Charge between 40% and 80%

The best way to maintain smartphone batteries is to keep your phone battery more than 40% charged. Constantly allowing the battery to go from completely full to completely empty can damage it and decrease its capacity over time. On the flip side, leaving your phone plugged in when it's completely full can also degrade the battery. Best practice? Keep your battery between 40% and 80% charged.

20. Get a certified or original charger – especially for fast-charging

Newer Android phones can take advantage of ‘fast charging’ tech which tops up batteries at around twice the speed – but if you’re not using a cable and charge head from the original manufacturer or a certified third-party, it could be contributing to battery drain, and in some cases, degrading the function of your phone.

“One thing that’s often overlooked is the use of low-quality chargers from third-party manufacturers,” says Galindo. “Especially with wireless and fast charging technology, it’s more complicated to ensure that cables work with batteries as they were designed.”

We like the Anker Powerline+ ($11.99, check price on Amazon) and the AmazonBasics USB 3.0 cable ($5.80, check price on Amazon)

21. Let your phone battery die once a month

If you never let your phone go to zero, fret not – it’s not doing your phone any harm. Previous warnings about the need to fully discharge batteries are more relevant to older types of batteries, not the lithium-ion batteries used by smartphones. However, allowing the phone to discharge fully to zero, then allowing it a full, uninterrupted charge may help with the calibration of the OS with the battery itself.

“The recommendation is once a month, as this can help the OS ‘remember’ what 100% or 10% of power left means,” says Galindo. “However, if you don’t do it, you won’t damage the battery.”

A sign that your battery could do with some discharge/recharge time is if the battery says it’s extremely low – say, 2% - but ends up lasting for ages, which may indicate the phone software is out of sync with the battery operation.

22. Restart your phone

That’s the official advice from Google support, as it can flush out any battery-hogging processes running in the background.

23. Try a factory reset

If these tips don’t sort out your battery drain, you can try returning your phone to factory settings. This can help if the issue is that the OS or some downloaded data is corrupted, says Galindo. Back up your phone– or at least make sure your photos are backing up– then head to Settings > System > Reset options. 

24. Always download updates

Whether updates are intended for downloaded apps or the Android OS itself, they generally include bug fixes and tweaks that improve performance, including how efficiently battery is used.

Updated on 7/24/2019 with new tips and Android Pie and Q information

[Image credit: Suzanne Kantra/Techlicious, YirgaLab]

Discussion loading

Charging my LG smartphone

From Roobik on September 24, 2017 :: 6:21 pm

1- when charging my LG smartphone, should my phone be completely or leave it idle while charging ?
2- After charging is completed, can I leave the charger plugged into the wall outlet or not ?

Thank you,


Charging my LG smartphone

From Roobik on September 24, 2017 :: 6:28 pm

Hello, (revised)
1- when charging my LG smartphone, should my phone power be completely off or I can leave it idle while charging ?
2- After charging is completed, can I leave the charger plugged into the wall outlet or should I pull it out ?

Thank you,


Battery drains Abnormally in LTE network

From Mehbub on September 26, 2017 :: 3:37 pm

Please Help…From 1 week i’m noticing that my battery drains so fast when i’m on a voice call the battery draines abnormally
.but when i use internet then the battery behaves normal..The problem shows only when i’m on a voice call..
Is my battery need to be replaced?
Or it is just because of poor network connection?
Help me outta it.


Is something recording calls?

From Josh Kirschner on September 27, 2017 :: 12:07 pm

I don’t have a good answer for you on this, but is it possible you have a program that records call (either with your knowledge or without)? It might be worth downloading Lookout Security to give it a check.

It’s also possible that it is your voice network, if the signal is really poor. Does this happen no matter where you are or only in certain places?


Charging my LG smartphone

From Roobik on September 27, 2017 :: 9:44 am

1- when charging my LG smartphone, should my phone power be completely off or I can leave it idle while is charging ?
2- After charging is completed, can I leave the charger plugged into the wall outlet or should I pull it out ?

Thank you,


On or off, unplug charger when done.

From Josh Kirschner on September 27, 2017 :: 12:10 pm

Your phone will charge faster while off, but if that isn’t an issue for you, it’s fine to leave it on.

As for the charger, it still may draw a little power, even when not plugged into your phone. So unplug it to be environmentally conscious. We talk more about killing energy vampires in this article (a little dated):


Over harging

From Adrian on October 09, 2017 :: 10:19 am

Actally, the concept of “overcharging” is gone with the old trusty Nickel based batteries. There is no charging once the Li battery reached its maximum charge voltage….


battery drain at offmode

From Dewi on October 18, 2017 :: 6:48 pm

Hi, the battery drains when my tablet galaxy note 8 is at off mode. I have already resetted the tablet. What would be cause or what should I do?
Also, I would like to know what is best to leave the tablet on sleeping mode or turn it off when you are not using the tablet for a few hours or till next day.


Possibly bad battery

From Josh Kirschner on October 19, 2017 :: 5:54 pm

If your tablet is draining quickly, even when off, that sounds like a battery issue. I would return it (if that’s still possible) or contact Samsung re repair/new battery. Some people have also found that taking the back cover off and removing the battery, then putting it back in also resolves the issue, which suggests the battery isn’t seated correctly and some sort of short in the connectors is drawing power. But I suspect a new battery is the fix.

As far as sleep vs power off for saving battery, power off will be the better of the two. Even in sleep mode, that Note 8 will still be using some power (How much depends on what the Note 8 allows to run in “sleep mode”. I believe it may only turn off the screen, in which case you’re not saving much power at all.).


Battery draining fast

From Aymen on November 10, 2017 :: 8:09 am

I git my new p8 lite 2017 like a week ago and I noticed that the battery on this thing drains faster than expected
It barely lasts me a day with normal use even when the power savibg mode is on…


still very high idle drain

From anas on December 20, 2017 :: 6:18 pm

I was getting good battery life previously. but once I use another charger to charge my phone a charger which is not my company provided charger, that was the day the phone starts idle training. I tried many things to improve my battery life but still the same result! no change. should I replace my battery my phone is one and half years aged.



From Trip Affleck on January 16, 2018 :: 3:03 pm

no one wants to bring it up because everyone blasts their music, but volume is the biggest power drain after vibration. turn that thing down. it’s IN YOUR EAR!



From vaso123 on April 13, 2018 :: 9:57 am

so drop your SMARTphone to the bin, and buy an old nokia.

19 is not true. since these smart things has own power management, if you are at 100%, it does not matter.



From Dal on April 28, 2018 :: 5:13 pm

So all this week I would take it odd and the battery would last like 6-7 hours which is usual. Today I took it off at 80% (while it was plugged in) and it says only like a hour.


Could be one of two things

From Josh Kirschner on May 01, 2018 :: 3:25 pm

Changes like that with your battery could mean either the battery is going bad or your battery meter needs to be re-calibrated. 6-7 hours in normal conditions sounds pretty short, which suggests your battery may not be that healthy to begin with. After you got the one hour estimate, did it only last an hour or did it run a normal amount of time? If it lasted normally, it may be the phone not doing a good job at estimating the remaining life. You can learn more about re-calibrating your battery here:


Out of country

From Mark on May 02, 2018 :: 9:32 pm

Does using a US phone in the UK with a UK network sim card contribute to significant battery drain?


It depends

From Josh Kirschner on May 04, 2018 :: 4:27 pm

If your phone has the appropriate radio to work with the UK carrier’s LTE network, then you shouldn’t see a difference in battery life. If not, the phone may bump down to an older 4G or even 3G/2G network, which would drain more power. I would suggest researching which carriers in the UK provide compatible coverage for your device.


Fuck you Google, you money making CUNTS

From STEPHEN TAYLOR on August 25, 2018 :: 7:25 pm

You release an update that ruins people’s daily tech life!

Well fuck you!

Do it again. I fucking DARE YOU…CUNTS!


Seeing and comparing battery usage

From Alexandre on October 16, 2018 :: 10:39 am

You can see and compare your battery usage with other phones of same kind via an Android app : Battery snap. Many battery usage histories are visible on the web site with relative key figures.
But overall good behavior rules are all here wink


So, how do I close apps?

From Jeremy Westerfield on November 12, 2018 :: 7:17 pm

3. Never manually close apps

I have a brand new phone, my first ever.  EVERYTHING is written like it assumes I’ve been using a smart phone for years.  Please author, flesh out your article with the rest.


New Battery still draining

From Jon on December 07, 2018 :: 11:12 am

Thank you first off, great tips in this article. I bought a new battery thinking that it would help. I have been reading the news and checking emails. Doing the steps in this article and 1 hour has passed. I am at 69%. My old battery was working better than this one. Perhaps i will try the other and compare with the new settings. Do you think i should get a refund from this new battery? Is it possible i got a bunk battery?


Could be bad battery

From Josh Kirschner on December 07, 2018 :: 12:07 pm

Is the battery an official replacement from the manufacturer or is it a generic battery replacement? If the letter, it’s hard to know what the quality control was that went into it. Either way, using that much battery in an hour seems high for that type of usage. Maybe if your screen brightness is fully maxed-out and “reading the news” really means watching news videos, but still seems a bit high.


Battery drain

From Iyke on December 22, 2018 :: 2:34 am

My phone always drains down when not in use, especially in the night but it’s normal while in use

Please what can I do?


Replace phone because of battery?

From Doug on March 01, 2019 :: 3:17 pm

Yes, batteries age and it used to be that you could replace your battery and even keep a spare on hand. 

I know of no company who allows this, which seems to me to be nothing more than a marketing tactic to get everyone to replace the device every couple of years. My phone works fine except for the battery.



From Roger E Gussett on May 19, 2019 :: 10:16 am

My phone battery went dead and upon replacement the shop had begun charging to 33%. I went home and it dropped to 15% while trying to charge the new battery from the electrical outlet. I had already purchased a new cord as the old one had frayed but when I returned the shop said it must be the phone that their testing revealed no problem with the phone. ARE THERE OTHER ANSWERS OR DO I NEED TO REPLACE THE PHONE?


Are you sure it's not the outlet or charger?

From Josh Kirschner on May 20, 2019 :: 12:33 pm

If it charges in the shop, but not in your home, then it’s either your charger or the electrical outlet which isn’t working. Try a different outlet and if that doesn’t work, borrow another charger to see if that is the issue.



From D W on June 20, 2019 :: 7:02 pm

You will get no help from Samsung or Sprint.  I have a Galaxy 5 and a fully charged new battery that used to last all day now only lasted 2 hours WITH THE SAMSUNG SYSTEM UPDATE- it also ran hot - MORE LIKE A DOWNGRADE.  From the same people who brought you phones and pads that caught fire.  You think they would have learned.  They will tell you that you can’t undo the upgrade.  An obvious ploy to force you to buy a new phone.  I tried everything:  putting it on power saving, deleting apps, nothing in all the articles you read worked.
 There is one option - you probably won’t like - the “nuclear” option.  But I did it and the phone and battery are working fine again.   You need to do a FACTORY RESET.     Do a SEARCH under SETTINGS for the “factory reset”.   Before you reset make sure you back up all your contact information, photos and other things you want to save on the SD card you have in your phone - NOT on the phone device itself.  If you don’t have a SD card in the phone back up what you can on a desktop PC through a USB to USB mini cable.  Also check out what apps you have and what you need to do to reinstall them.   If it is an app you purchased make sure you have the license key, username, and password or whatever you need to install the app again from Google Play and and then reactivate it with your license key.   A factory reset will erase EVERYTHING on your phone, data, apps, contacts, everything and restart from scratch.  ALL YOUR PERSONAL DATA AND APPS WILL BE WIPED OUT.   Also in the factory reset there is an option box to erase everything on your SD card as well.  DON’T check it.  Hit the reset button.   Wait.  Reset.  Then import back contacts, photos and other files back from your SD card to your phone device.  You can export to the SD card and import back to the phone from APPS>MY FILES>LOCAL STORAGE  and then choose which way you want to transfer the files. You will then have to reinstall all the apps that got erased from Google Play.   Like I said it is a “nuclear” option and takes time to redo everything but it does allow your phone to give you normal battery life again.  Obviously something the update programmers at Samsung don’t care about.   And of course, if your phone shoots you a notice in the future about the option to download or install a system upgrade - NEVER SAY “yes”.   Obviously the Samsung update programmers and corporate Execs can’t be trusted - except to force you to buy a new phone.  And make sure under SETTINGS>SYSTEM>SYSTEM UPDATE    you UNCHECK the box that says “DOWNLOAD UPDATES AUTOMATICALLY” 


battery draining to fast

From derek a mendel on June 28, 2019 :: 5:48 pm

With WIFI or mobile data on. Battery drains in 2 to 3 hrs. Also, the top right side of the screen gets warm

with WIFI and mobile data turned off. It will not drain battery for 24 hrs. Also, the screen does not get warm. Previously with WIFI and mobile data turned on. It would run fine for up to 24 hrs


I was actually able to fix this on my Moto X, but not any of the ways mentioned...

From Clarence W. on September 03, 2019 :: 7:09 pm

What I realized I needed to do was make sure WiFi is off when the phone is not in use.  This may not work for many people, but that is what is draining the battery.  Once I changed that setting, it went back to how it used to work before the Nougat update.


No something really useful

From Alexander Nikonov on September 12, 2019 :: 10:26 am

Such advices are already given here and there. And not always useful. You should be more specific about recipes… wink


Battery draining even if the mobile is powered off

From Hamza on September 23, 2019 :: 3:44 am

I have huawei mate 10 lite, I just want to ask what are the reasons that my mobiles battery is draining even if I switch off the phone… After 10 hours when I switch it on the battery is drained almost 20-25… Idk how… I didn’t even used the mobile.


Bad battery

From Josh Kirschner on September 23, 2019 :: 6:49 pm

If your battery is losing charge that fast when turned off, it’s almost certainly the battery is bad and will need to be replaced.


Battery loosing automatically without use

From Abhishek on September 27, 2019 :: 10:01 am

Hey… Actually I bought a new redmi note 7 few months was working very good and giving good battery backup. But then suddenly I realise that the battery automatically loss although not in use. While using it gives good backup, but when not in use, then also charging looses. If I left it at 50% while sleeping, then overnight it will come to 43% without single use. Actually I updated my phone, but when I contacted service center, they told that it’s loosing due to updating, so they reset it to older version,but after that also, problem didn’t sort looses even in airplane mode…

Help if someone can…... .


Battery draining overnight

From Kartik on October 31, 2019 :: 1:48 am

Hello,I just bought a new samsung galaxy A30s its been just 3 days since I bought it and now I am seeing 15-20%of drain everyday overnight.I checked the battery option to see which apps are draining the battery but none of the apps used significant amount of battery to drain that much battery..Please help


Bad battery or bad service

From Josh Kirschner on October 31, 2019 :: 2:09 pm

Depending how long “overnight” is, 15-20% may not be that out of the ordinary. But if it is draining that much over, say 8 hours, that does sound high. It could be the battery is bad, in which case you might want to consider exchanging the phone if you can since it’s brand new. Or, it could be that you have poor cell service where the phone is being left and it’s constantly working to maintain a connection. If that’s the case, ensuring you’re connected to your home Wi-Fi may help, or move your phone to a different location in your home.


"Battery usage" option doesn't exist

From Tim Brown on December 03, 2019 :: 11:12 pm

So where is this fabled “battery usage” option? It’s not there.


Yeah, it does.

From Josh Kirschner on December 04, 2019 :: 4:41 pm

How you find the battery usage varies by Android version and device manufacturer. For Android 10, go to Settings > Battery, then click the three dot menu in the upper right and you’ll see battery usage.


Battery dies only when my phone is turned completely off.

From Tom Riddering on December 13, 2019 :: 11:13 pm

My LG-G5 Android, 3 month old, phone battery dropped from 80% charge to 0% overnight while the phone was completely shut down, and it did it on two occasions.  Usually, I just put it in Airplane mode and DON’T turn it off.  When I do that I see only 5% to 10% drop in battery charge overnight.  Can anyone explain why it drops so much more when fully turned off than when it is left on?


Encrypted emails and I'm explicit text?

From Michael armontrout on March 29, 2020 :: 4:28 pm

My wife looked at my phone one day and noticed I was getting encrypted emails . And now she believes I’m hiding something and I’m not I love here more then life . And then I started getting text from dating sites !!! Ok it’s been there phones now and shes about to leave me and I dont understand why I keep getting this trash please if u could help me with this u could save my marriage!?


Why not block them?

From Josh Kirschner on April 02, 2020 :: 6:30 pm

It’s possible someone is playing a prank on you. Why not just block the text numbers and report the emails as spam?

Is it possible your wife is doing this to find a reason to leave you? How did she happen to look at your phone and find these “encrypted emails” that you hadn’t already noticed?


My phone battery is draining

From Laiba on April 16, 2020 :: 2:57 pm

My phone battery is draining and it says phone idle was on while in bed time i lock my phone and sleep and it drains almost 10% battery in an hour plz help


Battery drain

From Ismail Umar on April 22, 2020 :: 9:21 pm

I bought a new phone but I charged it upto 97% and started using it’s an Android phone infinix hot 8, but three days later I realize my phone battery drop by 2% when idle for five hours, I try putting on battery saver, clear all apps before sleeping and even putting it on flight mode,I even calibrated the phone by draining the battery and charging it upto 100%, I updated the phone OS also but no progress, but the battery still last long,I want to know could it be that it’s because I didn’t charge it up to 100% when I bought newly that’s y I’m facing this issue, but I noticed the issue started 3 days after I bought the phone


Could be bad battery

From Josh Kirschner on April 22, 2020 :: 11:23 pm

It’s possible either your battery is bad or some renegade app is draining your phone. When you look at battery usage in settings (step 1 above), what do you see is using the power?

The issue would not be because you didn’t charge your battery the first time. Lithium ion batteries don’t have the memory issues the old NiMH batteries did.


Battery drop

From Umar Ismail on April 25, 2020 :: 3:04 am

I ran a check through its battery usage,it’s normal application that I’m using that is consuming the battery and I calculated the percentage used by the apps from the time the battery was full I got to realize that there is still like 23% percentage drop which the battery usage isn’t reporting and the funniest part is that battery usage data is only reporting 1% drop due to phone idleness for the past two days but I can assure you that it’s more than 20% in real sense cause I observed the battery properly and observed the way it drops by 2% after some hours of idleness. And I doubt if it’s an application problem cause I reset the phone back to factory settings, and even put the phone on flight mode, clear all application running on background immediately so that no application will run and went to sleep,but the battery still drops,


Can you confirm how much it's dropping?

From Josh Kirschner on April 27, 2020 :: 6:14 pm

I think I maybe misread this the first time. Are you experiencing only a 2% drop after five hours? Because that’s not much at all.


Battery drain

From Ismail Umar on April 28, 2020 :: 4:57 am

Yeah, but I think I know where the problem is now, because I charged my phone to 100% then I close all apps, put the phone on silent, then I slept off,after like 3hours I woke up, i saw the battery had drop by 1%, then I check battery usage there was no application responsible for the drop, then I check full device usage, then I could see that mobile network standby drained 1%, though it’s like there is weak signal around my house but even if I go to work where there is strong network coverage it battery still drop by 2% every 5hours just like at home, If I put the phone on airplane mode it battery still drop but this time around it’s 1% for every five hours,,, please is there any way I could optimize my mobile network standby battery usage, because I ask around people using similar phone, they said they don’t experience any battery drop at all when there phone is idle, and I read an article online where someone complaineshis mobile network standby drops almost like 50% of his battery charge, I don’t want that to happen to me someday


That's completely normal

From Josh Kirschner on April 28, 2020 :: 10:57 am

Every phone will use some amount of battery power when it’s on. And when connected to a mobile network, it has to use additional power to maintain a connection with the local cell tower. This is completely normal and why every phone has a “standby” battery rating (e.g., 4 days of standby power). No phone has infinite standby power, and anyone who tells you their phone isn’t using power during standby is mistaken.

There are a number of reasons why other people may be experiencing significant power drops. But since this isn’t happening with your phone, I wouldn’t worry about it. Your phone is operating exactly as it should.

Battery drop

From ISMAIL UMAR on April 28, 2020 :: 4:39 pm

Thanks for the clarification,I was thinking of returning the phone to the seller or changing the battery, but now I know what’s happening to the phone is completely normal

Android Developer For Five Lemon

From Aravindh P on June 13, 2020 :: 10:38 am

My mobile battery drains faster from 100% to 80%. Then it is getting stable.


Android Developers For Five Lemon

From Aravindh P on June 13, 2020 :: 10:43 am

My mobile battery drains faster from 100% to 80%. Then it is getting stable. Why is it drains that much faster initially?


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