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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 :: 135 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

My x touch phone tablet

From Angelica Rosauro on April 07, 2016 :: 12:29 am

My x touch phone tablet is draining so fast even if it still have a battery charge ,ex.it still have a 70%charge. Why is it happening?

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Old battery?

From Josh Kirschner on April 07, 2016 :: 11:07 am

You don’t provide mcuh information about what is happening. BUt from what I can understand in your comment, it sounds like your battery may be getting old and need to be replaced.

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Batterie is draing so fast

From James Espey on August 18, 2017 :: 12:03 pm

Go into your phone tell it what is going on.It will tell you what to do.

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Moto X 2014 random drain

From DeltaEchoBravo on May 06, 2016 :: 10:09 am

I have a 2nd gen Moto X, and at seemingly random intervals it will grow hot and the battery will rapidly drain. The only way to halt it that I have found is a reboot, at which point battery consumption returns to normal.

Additionally, if the battery goes below 20% the phone may shut off at any point, though the battery log app (I wanted something to maintain history) reports the battery as being in “Good Health”, which seems unlikely. Is my battery dying?

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Sounds like a runaway app

From Josh Kirschner on May 06, 2016 :: 2:10 pm

When the phone gets hot like that, it’s almost certainly because an app is taxing the CPU. Follow step #1 above to see which apps are running and consuming your battery. When you figure it out which app it is, you can see if it is one of the app settings that is an issue (e.g., you’re telling it constantly to update your email) or just a crappy app that should be uninstalled. Let me know what you discover.

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phone idle

From Ajay on June 25, 2016 :: 5:12 pm

Can u explain what is the exact meaning of phone idle????  Since my every charging of battery leads up to its full percent…but when I open battery settings its shows phone idle so so percent…..so what is phone idle???

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That's just the phone standing

From Josh Kirschner on June 27, 2016 :: 12:20 pm

Your cellphone is constantly connected to a local cell tower in order to receive calls. The power required to maintain that connection is essentially the “phone idle” you see in your battery consumption. Phone idle should be using only a small amount of power. However, if you have a poor signal to your local tower, either because of distance or obstructions, your phone may need to use more power to maintain that connection, draining your battery faster.

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Stupid Wi-Fi...

From GT on July 13, 2016 :: 4:25 pm

Despite going through all the settings and turning them off, my Wi-Fi will not stop coming on by itself. It is wearing down my battery overnight. For 3 months everything was fine, battery would last 3 days. I suspect Google apps that have unlimited access to my phone. Maybe an auto-update? Don’t know why all of a sudden though.

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Check your settings

From Josh Kirschner on July 15, 2016 :: 10:28 am

There are a couple of settings that could cause this to happen (varies by device and carrier).

The first is to go into Settings>WiFi>Advanced settings. Check to see if there are any options for “optimizing” connections or automatically turning on Wi-Fi when near a known network (i.e., location based). Sometimes this connection optimizer is under Settings/More/Mobile Networks. At least one person has said that you sometimes need to turn it on and back off again to reset it.

If you’re a T-Mobile customer, you may need to follow these steps (via http://androidforums.com/threads/what-keeps-turning-my-wifi-back-on.754155/):
Access your T-Mobile account through the “T-Mobile My Account” App. Press the menu button on your device, then select “Options”. Under “Notifications” uncheck the box marked “Display Wi-Fi Manager notifications”. Under “Connection Assistant” select “Open Wi-Fi manager”. Uncheck the box for “Manage Wi-Fi Connections”.

If your settings are fine, it could be a recent app you installed that created the issue. Try uninstalling apps to figure out which one it is or do a factory reset and only reinstall those apps you need.

Some devices, such as Motorola phones, have IFTTT type settings that will automatically take an action when triggered. Turning on Wi-Fi when home is a typical one.

Finally, are you sure Wi-Fi is what’s running down your battery? Wi-Fi shouldn’t use more energy than mobile data if you’re at home with a strong Wi-Fi connection. Check your battery setting to see what apps may be active that shouldn’t be and, importantly, which are sending large amounts of data that you wouldn’t normally expect.

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If anyone is still having

From Zachary Nayer on July 14, 2016 :: 11:44 am

If anyone is still having these problems you may just need to buy a portable charger, I just bought one for my girlfriend that she loves and its also a compact mirror with an LED light, you can find it at fifthandninth.com

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Battery stats

From Mark Jones on July 29, 2016 :: 7:54 am

I would love to monitor my usage but my battery stats are wrong.  After charging all night to 100%, I used it for 2 hours and I’m at 68%.  Here’s what it shows:
Screen 5%
Candy crush 2%
Android OS 1%
Android System 1%
Chrome 1%

How does that help??

Nexus 6P
Android 6.0.1

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Spyware

From Ernesto Colina on July 29, 2016 :: 9:56 am

@Mark
Unless you are actually playing “Candy Crush”, that app should not appear. In other words, you are being spied by the app and on top of that your battery is being drained.
Also if you have an animated wallpaper, that also drains the battery, change it to a regular photo.

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Possible fix for Nexus 6P battery issue w/Android 6.0

From Josh Kirschner on July 29, 2016 :: 10:14 am

A number of people have reported battery issues on the Nexus 6P with Android 6.0. Try this fix to wipe the cache partition (via superzeppo):

- Power off your phone
- Enter bootloader by pressing and holding power on and volume down buttons.
- Select the Recovery option by pressing volume down button twice and then the power key.
- Wait for the Android logo and press and hold the power button and press volume up button once and release.
- Scroll to Wipe cache partition, choose it and confirm.
- Boot the device and you are good to go.

You can see the video of how to do it here: https://www.youtube.com/watch?v=GoJAhwBxU8M&feature=youtu.be.

Let us know if that works for you.

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Problems With Android Phones!

From Dave on August 17, 2016 :: 11:47 pm

I have both the Galaxy S7 Edge and iPhone 6S Plus….

My iPhone outlasts the S7 battery at least 2 times longer (sometimes 2.5).  Talking same usage and same apps.  Almost a clone install.

Android just does not manage background apps the same (or should I say as well) as iOS.  The only way I can get the battery on my S7 Edge to last as long if I uninstall all apps except the native ones and just use it in that state (phone/text/web browser).  The min you install Skype, Snapchat, etc. say goodbye to good battery life. 

I think this is because Android must actually run these apps in the background, where iOS puts them in standby until a notification comes in and you actually open the app again.

I absolutely love my S7 but have to use my iPhone 6S as my daily driver as it always outlasts the S7.

Cheers!

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Some other suggestions

From Sahil on August 26, 2016 :: 8:28 am

I have used many of the battery saving apps and many of them are totally garbage and even they consumes your battery at most but some of them works like DU battery app and Yellow battery app.

I am currently using Yellow battery app and you can read more about it form from here : http://www.travellingtowns.com/2016/08/download-yellow-battery-app-for-android.html

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charge is going

From Dibil on August 28, 2016 :: 10:53 am

I have charged to 100% and when i open the phone after 5 -10 minutes it goes to 99% .when i checked after 2 3 hours it goes to 90 %.. i just have buy 3 months but this problem started from 1 month.can we solve the drainig .

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Did you follow advice above?

From Josh Kirschner on August 29, 2016 :: 9:37 am

The first step is to see what is draining your battery, then you can go from there.

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I got this weird problem.when

From Razz Om Shrestha on September 06, 2016 :: 1:14 pm

I got this weird problem.when using my device(streaming video,about 6-8 min battery decreases by 1%). I streamed a video of 2 hrs and battery decreased by 15%-17%. The indicator shows i got 73% battery left.i turn off my device screen and after 15-20min when i turn on the screen battery show 53%,even in gsam it doesn’t show what drained my battery???

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Battery levels are an approximation

From Josh Kirschner on September 07, 2016 :: 3:17 pm

The remaining battery is an estimate and it may be taking your phone a bit to get a more accurate reading after heavy consumption. Also, older batteries lose life over time, screwing with the estimates. If it only happens in this one scenario, I wouldn’t worry about it too much. But if you regularly see big drops on battery life, it may be getting time to replace the battery.

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What is 10302 which is draining my battery on my Galxy s6???

From George on October 05, 2016 :: 12:09 pm

I deleted almost all bloatware on my galaxy s6, and…something called 10302 is draining my battery…it is directly after screen…it consumed 12% now and the battery is on 60% wtf???please help me!

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How long has this been happening?

From Josh Kirschner on October 05, 2016 :: 5:56 pm

I can’t find ay info on “10302” in reference to a GS6. Does it give you an option to uninstall it?Has this been an issue since you first got the phone or is it something recent?

If it is recent, and you can’t uninstall that app, you may want to try a factory reset. That will clear off any crap apps you may have downloaded unintentionally. Add back in only those apps you know are safe and see how the battery does after that.

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Unfortunately i cant uninstall it...and

From George on October 11, 2016 :: 1:28 am

Unfortunately i cant uninstall it…and it appeared when i installed a package disbler for non rooted devices…maybe that is the problem…sometimes it shows up but it disappeared now…maybe that uses so much battery but since i dont use it does not appear any more…but can you suggest me some ui like good lock but which does not drain as much battery as touch wiz and good lock…they eat up so much battery… :/

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Battery draining faster than before

From Haashim Akbar on November 03, 2016 :: 6:10 pm

So I just got the new Moto g4 roughly a month ago and I have been very impressed with it and it’s battery life. However after a couple of weeks i have noticed the battery getting more and more less effective. And on the top of the list for apps battery use is screen at 34%. I don’t understand why as my screen timeout is 15 seconds and my battery is at the lowest. please help

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Battery dying out of no where

From Sarah on November 13, 2016 :: 4:39 pm

Hi, I’ve tried all the suggestions here and nothing seems to be working. My phone was fine two days ago and then I update all of the apps on my phone and my phone cant hold a charge for more than a few hours and wont hold a charge while charging via computer. What can I do to fix this?

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Need answer please

From Manolito Velasquez Serrana on November 26, 2016 :: 5:01 pm

My phone acer liquid z520 are in high privilege mode, and in some articles that my phone was rooted. The questions are, how could I change that high privilege mode into safe mode because in some articles, high privilege mode are draining the battery fast so can you help me to fix this. My battery is getting drained in such short period of time huhuhuhu

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Android OShit

From Mjh on December 07, 2016 :: 7:53 am

Best way to use Android to utilize the battery of its phone is to buy iPhone..

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Impressive

From IRSHAD on January 18, 2017 :: 1:20 am

Great tips and tricks to save battery. Helped me a lot !!

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Doze requires a VPN

From GregN on January 21, 2017 :: 11:40 am

The Doze app sounds like a good idea, but it requires the creation of a VPN, which is not a good idea.

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battery draining

From saisree on January 22, 2017 :: 9:59 pm

My battery is new one which I brought it recently due to the failure of the old battery. It is draining too fast in the order of 80-85-70 even it is in no use. Is their any solution for this.

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Turning off/disabling much of the phone helps with battery life

From GregN on January 22, 2017 :: 10:12 pm

I turned off everything possible, and I don’t use my Galaxy S5 when I don’t have to.  When I do use it, I keep it plugged into a charger most of the time.  It helps tremendously.  Also, keeping the wifi turned off when I’m not using it is a big plus.

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Could be bad battery or running app

From Josh Kirschner on January 24, 2017 :: 5:18 pm

If your new battery is draining really fast, then you either have a bad battery or there is an app running that is killing your battery. The best thing to try may be a factory reset on your phone, then reinstall only the apps you really need. See if that makes a difference for you.

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samsung s5 battery rain after being sinced to vehicle bluetooth

From Richard Rhymer on January 29, 2017 :: 11:02 am

My cell battery drains even when I’m not in my truck. The bluetooth is draining the battery. What do I need to do?

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Battery dropping

From Questio on February 21, 2017 :: 6:45 pm

I need a little help on this. Basically, say for example that my battery is at 90%. When I restart my phone, it’s at 80. I also noticed that my battery depletes faster when it reaches the 15% mark.

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Sounds like the battery is going bad

From Josh Kirschner on February 22, 2017 :: 11:28 am

Batteries have a limited number of recharge cycles and will lose the ability to store charge over time. What you’re describing sounds like the battery is getting old and needs to be replaced. If it is a relatively new battery, it could be defective.

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http://www.mobileunlimitedplans.com/

From Lara Brown on May 31, 2017 :: 6:10 am

My Tablet darning so fast. Why is it happening.

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My phone is oppo A37

From pri on June 02, 2017 :: 6:37 am

My phone is oppo A37 when I put off my phone Screen at night or leaving some hours rest to my phone the battery gets drained even if all the background running Apps are not runned.. Why it’s happen?

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Um...

From Public Editor on June 02, 2017 :: 1:00 pm

Which is the better strategy, #13 (Dim the screen – intelligently) or #15 (Dim the screen – intelligently)?

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When we updated the story

From Suzanne Kantra on June 02, 2017 :: 1:36 pm

When we updated the story to account for Nougat, we reordered some of the tips to keep like content together. I’ve fixed. Thanks for the heads up.

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It's the phone not the battery or apps

From Wiz on June 15, 2017 :: 11:27 am

I got a new battery for my phone (Galaxy Note 4) after 1 year but it drained as quickly as the old battery and I rarely use BT or GPS.
I have very few apps installed and all from very known developers
and also I’ve set my cellular settings to only use 3G (I live in Stockholm) so no switching between 2/3/4G. All this together is probably as much power saving as possible for the phone yet I cant manage to get it a whole day and screen time is less than 3 hours!!

So I went to Samsung service center and got every part of the phone replaced except for the battery and the side metal frame of the Note 4 (obviously as it doesn’t affect battery life), installed the same apps and voila, outstanding battery time.

Now 6 months later I’m back to square one…

Forget all the tips and tricks, as soon as the phone gets old it’s doomed to fail in battery time.

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Standby and Idle phone's battery drainage

From Dinesh Suthar on June 18, 2017 :: 3:11 pm

I m using Moto x play from last 14-15 month . It is running on marshmallow. Initially battery was draining very slowly but after using it 9-10 months it rapidly drains.
I also tried battery optimization and battery saver both but standby battery drainage increase almost 4 times to its initial battery drainage.
Please give me some solution.

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thanks but i need more advice than this

From harry krishnan on June 26, 2017 :: 9:50 pm

my screen’s at 1% brightness and half of the battery power of my phone is still going towards powering this screen that can’t possibly be any dimmer. i have everything turned off except for wi-fi. i keep the screen off as much as i can. nothing sends information about my location or looks for broadcasting towers. and the battery’s running down at a rate of nearly 30% every hour, more if i’m looking at a web browser, they use nearly quite as much power as the screen. i don’t know what else to do. i use my phone for entertainment and as a work pc, i use it all the time, how do i save its battery running down when i’ve done everything there is to be done as far as i can tell? thanks for your answer if you do ever give me advice

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Sounds like bad battery

From Josh Kirschner on June 27, 2017 :: 9:48 am

If you’re not seeing anything odd in your battery usage in the Android settings that looks like one app is causing the problem, then it almost certainly sounds like a bad battery. Smartphone batteries generally only last a couple of years, and even new batteries can be defective and have these issues. I would get a new one and see if that resolves the issue.

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thanks, i was hoping there'd

From harry on June 29, 2017 :: 9:41 am

thanks, i was hoping there’d be a solution that didn’t involve spending money but what can you do. incidentally is there a way i can stop all the google tracking software starting itself up automatically? i liked PCs, i knew what to do with those, i need special software to look at my own files with these pocket computers

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Which software do you mean?

From Josh Kirschner on June 29, 2017 :: 9:54 am

You can control many Google account tracking features in your Google account settings which you can get to here: https://myaccount.google.com/. That’s different than tracking that happens through cookies and is used for advertising purposes. We discuss how to prevent those in this article: https://www.techlicious.com/tip/the-best-browser-privacy-tools/.

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Use Greenify to hibernate Apps

From Ernesto Colina on June 27, 2017 :: 10:53 am

For all those people whose battery is constantly running low, you need to take in mind that your apps specially your games, facebook, email, etc. Even when you think you “quit”, in reality, all of those apps are still running, and even worst, when you turn off and turn on your phone, the are restarted again.

So what is the solution? You cannot turn them off or kill them since they come back to life like zombies, so, I already mentioned in a post before. you need to put them into hibernation and for that purpose, for Android phones, use “Greenify” :
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify

It is a big difference, of course you will need to check one by one of all the apps you have installed.

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Battery idle drain

From Erick on July 31, 2017 :: 3:01 am

For a few weeks now, i have a problem of my battery draining during sleep. When i go to bed, i make sure to have 80% of battery, but when i wake up, it became 60%. It drains very fast and device idle, android os, and android system is always at the top of the list. What can i do to solve this problem? I have an asus zenfone3.

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How can i solve my

From Erick on August 01, 2017 :: 9:23 am

How can i solve my problem?

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Sounds like bad battery

From Josh Kirschner on August 01, 2017 :: 11:00 am

Given that the highest drain items are all just normal system operations, fast draining battery suggests that the battery itself is bad. Not clear from your question if you are charging while sleeping or it is draining while unplugged. If draining while plugged in, it may just be that your charger isn’t working.

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It's draining while not plugged.

From Erick on August 01, 2017 :: 11:11 am

It’s draining while not plugged. It could drain 20% in 8hrs without using it. Device idle drains my battery but i don’t know what causes it to drain so much.

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I installed wakelock app lite.

From Erick on August 12, 2017 :: 4:27 am

I installed wakelock app lite. I used it by adb. So my phone won’t be rooted and i think i found what’s draining my battery and waking up my phone. It’s “7000000.ssusb”. But i still don’t know how to deal with that. Do you have any suggestions?

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