How to extend your Android’s battery life

April 15, 2013

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    Android devices are smart mobile devices. They’re actually mini computers more portable than netbooks or laptops. But, their power requirements aren’t as mini as we’d hoped them to be. Many Android users frequently bewail the battery life of many Android devices.

    Yet, used in moderation — and, with energy-saving habits practiced by the user — an Android tablet’s or phone’s battery life can last longer than originally intended. How do you make your battery last longer so you can use your device longer?

    In this article, read about tips and tricks to increase Android battery life for your phone or tablet.  (You may also view our video guide incorporating these tips and tricks.)

    Unused device features

    Connectivity features

    Whatever isn’t in use or needed, turn it off. You’d do the same for your electric fan, TV, or the lights at home — I presume. Turn off phone or tablet features that you don’t use, especially the following:

    • GPS
    • Wi-Fi
    • 4G/LTE and mobile network connection
    • Bluetooth
    • NFC

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    These connectivity features eat up some of your battery power even if they’re idle, and they eat a significant amount of power when they’re not.

    Haptic feedback

    A frequently vibrating device also tends to lose power faster.  Haptic feedback refers to the shaking that happens on your device as a result of some interaction or activity on the device. Such feature uses a small vibration motor, which, in turn, eats up power. Do you really need your device to vibrate every time you touch the screen or every time a notification arrives even if the device is on your desk? It’s wise to turn on haptic feedback only for important UI interactions (e.g., typing on the keyboard) or when your device needs to be in your pocket.

    Power Control widget and task apps

    You can use Android’s built-in Power Control widget to quickly toggle most of the energy-draining features such as Wi-Fi, Bluetooth, GPS, Autosync, and Auto Brightness. Just place the widget on your homescreen and tap on the toggle buttons as needed.

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    But, using even a handy widget such as Power Control can become tedious if you need to do it several times a day. The good news is that there are several apps on the Google Play Store that you can use to automate, or semi-automate, the turning off of energy-draining features. Here are some that you can try (in no particular order):

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    AutomateIt-Automate Your Droid

    • This free and ads-free app lets your device perform actions according to triggers that you associate them with. For instance, you can set it to disable certain features (e.g., Wi-Fi, Bluetooth, GPS, etc.) at certain hours of the day. Get the paid version for more flexibility with the triggers, actions, and rules.

     

    Tasker

    • This app, although having no free or trial version, is extremely flexible. It works in a similar way to AutomateIt. You can set your device to perform tasks/actions (e.g., disable network services) according to “contexts” that you specify (e.g., time of day, day of week, etc.).

     

     

    Juice Defender

    • This app is specifically written to help users lower battery consumption and squeeze more power out of their devices’ batteries. The default profile targets the most battery-sapping components (e.g., mobile data [3G/4G], Wi-Fi, and the like), but you can customize the settings further according to your needs.

     

     

    Mobile network, Wi-Fi, and network signal

    If you must connect to the Internet, and you have a choice between connecting via Wi-Fi or mobile network, choose the former. Mobile data connections sap your battery power faster than Wi-Fi. The reason has something to do with the relationship between strong network signal and distance from the transmitter. Since Wi-Fi presumably is closer to you, you tend to get a stronger and more stable signal, therefore reducing the needed energy to power your phone’s antenna.

    So, when connecting to Wi-Fi, stay in a place with the strongest signal. This way, your phone’s antenna won’t need to work so hard to get a stable network signal, saving you some battery power.    The same is true for your carrier’s network signal. The better the reception signal is, the better it will be for your battery life.

    Also, it’s a wise idea to disable your phone’s Wi-Fi hotspot feature if it’s not being used. This feature also eats up a lot of power.

    Autosync, refresh frequency, notifications

    Instead of letting your apps sync their data automatically, choose to do it manually. Or, at the very least, enable autosync only for those apps that really need it. The logic behind this is that when an app is scheduled to sync, it will look for an active Internet connection — and the process uses power. When it finds a connection, it will connect and start syncing even if there is nothing to sync — this part uses power, too. Either set apps to sync manually or set them to sync less frequently.

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    And, you’d want to sync over a Wi-Fi connection instead of 4G/LTE or mobile data network.

    App/widget refresh frequency

    Certain apps such as Facebook, Twitter, RSS readers, Instagram, and the like can be set to fetch fresh content or updates in intervals. The longer the refresh interval you specify, the better it will be for your battery life. To be more economical, set the app to never refresh automatically; instead, do the refreshing by hand.

    The same principle applies to homescreen widgets, especially those that need an Internet connection to work. If possible, don’t place such widgets on your homescreens. If not possible, be very selective. Weather widgets, for example, look nice and fancy, but they need to update weather data from their servers, consuming power along the way. You can lessen the frequency of such updates, or remove the widget entirely.

    Ad-free apps

    The same principle also applies to ad fetching in ad-supported apps. These apps use power to download ads and upload user data for location-specific advertising. Where possible, opt for ad-free apps, whether paid or free.

    Notifications

    Disable or minimize notifications and alerts for apps that you don’t need those for. If all of your apps alert you every time a notification or update comes in, your battery can drain faster than usual. To send you notifications, apps run in the background to pull information from their servers, and consume power in the process.

    If you have a device running Android 4.1 or 4.2 Jelly Bean, you can go to Settings > Apps, switch to the All tab, view each app’s info page, and uncheck the “Show Notifications” option.

    Screen and display

    Generally speaking, more light means more power used. Applied to phones and tablets — the brighter your screen, the more power is used.

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    When you are indoors, set your screen’s brightness level to the lowest setting that is most comfortable to your eyes. You don’t usually need the extra brightness indoors, and your battery life will be happier for it.

    Other people suggest using the auto-brightness feature, which can be handy. But, for the auto-brightness feature to work, the light sensors need to work and consume some minimal power to detect the ambient light levels. So, it’s actually counterproductive.

    To save some more juice, shorten your screen’s timeout. If you normally have your screen sleep after five or ten minutes, lower it down to 30 or 15 seconds. Keeping your screen on for a few more minutes without using it will waste battery power needlessly.

    Wallpapers and themes

    Live wallpapers

    Live wallpapers are all nice and pretty. They’re actually a big reason why some people ditch other mobile OSes and stick with Android. But, live wallpapers can also take a toll on your device’s battery life.

    As far as I know, there’s no consensus about how much drain live wallpapers inflict on the battery, but one thing is certain: they consume power because they use CPU and GPU resources to animate. And, then, there are the poorly coded live wallpaper apps, which can potentially eat more battery power than you bargained for.

    If you can live without the stunning eye candy, you can probably save a bit on battery life.

    Dark themes

    This tip may not have much effect on LCD-screened devices, but for devices using OLED screens (including AMOLED screens, such as those on many Samsung mobile devices), darkness can be a saving grace for your battery.

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    Unlike on LCD displays, the pixels on OLED screens produce their own light. The brighter the pixel is (as in the case of white), the more power is used. Black is practically an unlit pixel, so it uses no energy. Thus, the darker your screen or its background, the less power the OLED pixels use.

    Based on that explanation, you might want to use a black wallpaper and a dark theme on your OLED-screened Android device. It can save you some juice.

    Location services, background data

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    You could also squeeze a little bit more juice by turning off Location Services (usually found in Settings > Location Services). You might want to prevent apps from using your location info. You will also most likely want to disable the “Location and Google Search” option (or “Wi-Fi and Mobile Network Location” option on some phones) to prevent your device from using Wi-Fi and/or mobile networks for triangulating your precise location and sending the data to Google servers. The process, needless to say, requires power.

    tips-tricks-increasing-battery-life-android-0144

    Keep an eye on apps that use data in the background. Some apps, such as the Play Store and Gmail apps, continuously collect and send data in the background. You can restrict such background usage of data — per app — and your battery will be the happier for it.

    But, you can also perform a blanket restriction in Settings > Data Usage; tap the Menu button tick the “Restrict Background Data” option to enable it. You can also enable per-app restriction by opening each app’s info page.

    (Note: The “Restrict Background Data” option may not be available in certain phone models. Also, Google itself considers per-app background data restriction as a “drastic measure that may also affect the app’s performance or cause it to malfunction,” so you might want to use this option with caution.)

    “Bad” apps

    Some apps are resource-intensive — either by nature (as in the case of games) or by developer incompetence or negligence (as in the case of poorly written apps).

    You need to be vigilant about how your various apps consume battery power. A quick trip to Settings > Battery (or, on some devices, Settings > Power > Battery Use) will usually reveal which app or service is sucking most of the juice.

    Identify apps that constantly drain CPU and battery life. Poorly coded apps that connect to the Internet even when they’re not supposed to should be uninstalled, as should apps that needlessly use up a huge amount of CPU resources. Replace these apps with better developed ones rather than endure running on lesser and lesser battery each day because of “mischievous” apps.

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    To help you pinpoint apps that are misbehaving, you can use apps such as Watchdog Task Manager Lite. Instead of telling you to free up your memory, this app alerts you when an app starts hogging up your CPU power when it’s not supposed to.

     

     

    Also, keep your installed apps up-to-date. App developers send out updates to provide bug fixes, add new features, and even lessen battery consumption. So, make sure to update your apps regularly; doing so can help in extending your device’s battery life.

    As for apps that you don’t use, or that you rarely use — what are they still doing on your device? Get rid of them. Your storage will be all the more spacious without them, plus you’ll be getting rid of apps that potentially run battery-eating background services.

    Power saving mode

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    If you use your device constantly throughout the day, you may want to consider using your device’s power saving mode. In fact, many of the tips suggested in this post are implemented in most devices’ power saving mode. For instance, power saving mode usually limits CPU use, reduces screen brightness, deactivates haptic feedback, disables data network when the screen is asleep, and lowers the brightness level of the browser’s background color.

    The generally recommended advice is to disable power saving mode when you intend to use your phone’s smartphone features; otherwise, turning power saving off can help you stretch your battery life further. So, for instance, you might want to disable power saving mode if you plan to play games on your phone, or else you could experience lag or jitter.

    To root or not

    Rooting may have drawbacks but the benefits far outweigh them. One attractive advantage of rooting is that of possibly improving your device’s battery life.

    Debloating

    Rooting itself won’t lengthen your battery life. Rooting merely opens the gates to your device’s restricted partitions and directories. With such restriction gone, you can remove useless apps (e.g., bloatware from carriers or OEMs), especially those that run as background services, wasting away precious battery power.

    CPU underclocking

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    With root access on your device, you can also install apps that can improve your system’s performance. A CPU controller app, for instance. Three names instantly spring to mind: SetCPU for Root Users, No-frills CPU Control, and CPU Tuner.

     

     

     

     

     

     

    Apps like these essentially allow you to tweak the CPU settings on your device. You can set the CPU frequency to stay at the lowest (and, as a result, use up the least power but sacrifice device performance) or to stretch the CPU to its maximum limits (resulting in better and faster performance, but at the price of heat, quick battery drain, and potential system instability).

    Be careful when using such apps. There are risks involved; for example, your device could behave erratically when its CPU clock is set higher than usual.

    Custom kernels and ROMS

    And, since in all likelihood your phone has also acquired an unlocked bootloader and custom recovery in the process of rooting it, then you’ll also be able to enjoy the blessings — the power-saving blessings, in this case — of many custom kernels and custom ROMs. Feel free to look around Android Authority for guides on how to flash custom kernels or custom ROMs to your particular device.

    Extended batteries and battery care

    If you’re one of the very rare few who use their Android devices heavily throughout the day, you might consider buying a spare original OEM battery — that is, if your phone or tablet has a removable pack. We strongly recommend OEM batteries because they tend to outperform and outlive third-party battery packs — even those with higher capacities.

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    You can also consider third-party high-capacity extended batteries (for devices with removable batteries) and portable “juice packs” (for devices with non-removable batteries). High-capacity extended batteries, however, tend to be bulkier and thicker. Be careful when buying third-party battery packs. Only buy from reputable manufacturers who have already established a good reputation in the market.

    Also, since Li-ion is still the most popular battery technology among Android devices, you might want to invest some time in learning how to take care of a Li-ion battery to avoid cutting its lifespan short. For instance:

    • Keep Li-ion batteries away from hot or warm places, especially while charging or when in use.
    • Generally, don’t completely drain a Li-ion battery before recharging. Bringing the battery level down to zero before recharging is detrimental to the battery — if done frequently. Li-ion batteries work better when charged even while they still have some power left.
    • Every once in a while, allow the battery to discharge fully before recharging. Experts recommend doing this after every 30 charge cycles. This reportedly prevents “digital memory” and encourages the battery level monitor to recalibrate.
    • Unplug the device when it is fully charged. Don’t leave the device plugged in for a long time after it is fully charged. Doing so can harm the battery.
    • Do not subject your device and its battery to prolonged heavy use (e.g., non-stop intensive gaming for hours). Doing so will encourage the battery to deteriorate faster.

    Video Guide

    Learn more tips and tricks in this video guide:

    Conclusion

    Battery life is one of the big things that we look out for when examining prospect devices to buy.  Yet, we should never fall into the delusional trap of a limitless supply of Android battery power.  Even batteries have their limits, you know.  If we consider those limits, and adjust our usage habits accordingly, we just might be able to squeeze more power out of our battery packs.

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    How’s the battery life on your Android device?  How long does your device last before it needs charging?  How do you conserve power on your Android device?  Share your thoughts in the comments.

    (with contributions from Elmer Montejo)

    References

    • Battery University. (2013). How to prolong lithium-based batteries. Retrieved from http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
    • Burke, Steve. (2012, August 21). Busting battery myths: Taking care of Li-ion batteries. Retrieved from http://www.gamersnexus.net/guides/899-battery-myths-li-ion-battery-management
    • Cutlack, Gary. (2012, November 19). 12 Android battery life tips and tricks. Retrieved from http://www.techradar.com/news/phone-and-communications/mobile-phones/12-android-battery-life-tips-and-tricks-697772
    • Ecs180. (2013, February 20). Not so known battery saving tips [Msg 1]. Message posted to http://forums.androidcentral.com/samsung-galaxy-note-2/254337-not-so-known-battery-saving-tips.html
    • Fisher, John. (2011, February 1). How does power usage for data over Wifi compare to data over 3G? (Ignore LTE for now). Message posted to http://android.stackexchange.com/questions/5512/how-does-power-usage-for-data-over-wifi-compare-to-data-over-3g-ignore-lte-for
    • Gabel, Marty. (2012, June 22). Five not so obvious ways to extend the battery life on your smartphone. Retrieved from http://news.yahoo.com/five-not-so-obvious-ways-to-extend-the-battery-life-on-your-smartphone.html
    • Gilbert, Sarah. (2011, December 25). Tips for improving your Android device’s battery life. Retrieved from http://usatoday30.usatoday.com/tech/products/story/2011-12-26/tecca-android-battery-life-tips/52226890/1
    • Google. (2013). Optimize data usage – Android OS help. Retrieved from http://support.google.com/android/bin/answer.py?hl=en&answer=1638168
    • Gordon, Whitson. (2011, April 26). How to get better battery life from your Android phone. Retrieved from http://lifehacker.com/5795796/how-to-get-better-battery-life-from-your-android-phone
    • haimg. (2012, June 26). Does disabling 3G while having Wifi save battery?. Message posted to http://android.stackexchange.com/questions/24852/does-disabling-3g-while-having-wifi-save-battery
    • Hoffman, Chris. (2012, December 27). Does plain black wallpaper save battery on mobile devices?. Retrieved from http://www.howtogeek.com/131823/htg-explains-does-black-wallpaper-save-battery-on-your-mobile-devices/
    • Hoffman, Chris. (2012, October 25). Why you shouldn’t use a task killer on Android. Retrieved from http://www.howtogeek.com/127388/htg-explains-why-you-shouldnt-use-a-task-killer-on-android/
    • Howley, Daniel. (2012, February 3). Top 10 battery saving tips for Android. Retrieved from http://blog.laptopmag.com/top-10-battery-saving-tips-for-android
    • Kassner, Michael. (2010, September 10). Five tips for extending Lithium-ion battery life. Retrieved from http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/289
    • Kincaid, Jason. (2011, April 22). Google responds to smartphone location tracking uproar, says Android is opt-in. Retrieved from http://techcrunch.com/2011/04/22/google-responds-to-smartphone-location-tracking-uproar-says-android-is-opt-in/
    • Lendino, Jamie. (2012, April 27). 10 tips to boost your Android phone’s battery life. Retrieved from http://www.pcmag.com/article2/0,2817,2403770,00.asp
    • Levi, Joe. (2012, August 2). Wifi vs data, speed vs battery life. Retrieved from http://pocketnow.com/2012/08/02/wifi-vs-data-speed-vs-battery-life
    • The Geek. (2010, August 11). Complete guide to maximizing your Android phone’s battery life. Retrieved from http://www.howtogeek.com/howto/25319/complete-guide-to-maximizing-your-android-phones-battery-life/
    • waisybabu. (2011). Busted: 5 myths about increasing and decreasing Android’s battery life. Retrieved from http://wccftech.com/article/busted-5-myths-increasing-decreasing-androids-battery-life/

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    Comments

    • RarestName

      I quote a sarcastic douchebag from the comments section.

      “Oh Rarest Name, you are a ****ing GENIUS. How about just turn off everything but the phone. Viola! Why didn’t Samsung hire you?”

      Well, guess what?

    • http://www.facebook.com/msantaka Mochammad Santaka

      Wow, very nice article. I think you got everything covered. Next time somebody I know asked me how he/she can conserve some more juice on his/her mobile device, I’ll just link it here.

    • Leif Sikorski

      If you’ve to worry that much about it it’s getting a pain to use in my opinion. Usually I’ve all services enabled and get easily through a day. If it’s a long day or weekend with heavy usage I always have a small second battery in my pocket to replace. My only strategy, and in my opinon the most efficient, is to avoid app that are bad written and waste too much battery. Most known is the facebook app in my opinion. Until the batteries hit the 3.000mAh mark (or above) I won’t consider to buy a phone without a swappable battery.

    • http://www.facebook.com/santeri.liukkonen.1 Santeri Liukkonen

      I’m surprised by how long my Note 2′s battery lasts. It gets me easily through the day with moderate usage and lots and lots of apps running in the background alongside colorful live wallpaper and Nova Launcher with Holo Locker topping it all off. (Whatsapp, FB, messenger, Gmail, Flipboard, Currents, Google+, Play store and so on auto-updating all the time..)

      Today I unplugged it at 7 a.m and now It’s 3.30 p.m. I have sent a few e-mails, read some news, watched one video on youtube, surfed a bit of web and played one game for 15 mins, also I went through a few calls..

      My battery is down to just 82% :) Me happyz!

      It definitely will last the whole day through ;)

      • choco

        if your note 2 doesn’t last a day then it’s seriously a big problem considering how large its battery is

        • http://www.facebook.com/santeri.liukkonen.1 Santeri Liukkonen

          At the end of that day, somewhere at 11 p.m my battery was still 48% so everything is just fine :D It’s just the impressing fact for me that my SGNII lasts heavy usage this well :)

          (The screenshot is just an example)

          • http://www.facebook.com/santeri.liukkonen.1 Santeri Liukkonen

            Also:

        • http://www.facebook.com/santeri.liukkonen.1 Santeri Liukkonen

          At the end of that day, by 11 p.m, my battery was down to just 48%. I’m just pointing out that I am very impressed by my SGNII’s 3100 mAh battery :)

          (These are just random screenshots of my typical day with this phone)

    • Xavier

      very complete article. Thanks

    • Jelly Bean

      I use some handy widgets on my GS III that I always keep an eye on during the day — a battery status widget, system monitor widget, 3G/LTE/WiFi/Bluetooth toggles, task killer, and antivirus subscription (which I find is worth running weekly). With some vigilance, I find I can get almost a whole working day out of my phone.

    • kyogoku

      Hi, Tasker has a free trial version you can get from the website http://tasker.dinglisch.net

    • Balraj

      Following these rules/suggestions means using a compromised android experience
      Why would one do that unless….

    • http://twitter.com/Thingymebobs Will Bickerstaff

      “Bt, for the auto-brightness feature to work, the light sensors need to work and consume some minimal power to detect the ambient light levels. So, it’s actually counterproductive.”

      I’d question the validity of that statement. Most light sensors are photo-diodes which actually generate a voltage when in light so quite the opposite to what you say.
      http://www.wikid.eu/index.php/Ambient_Light_Sensor

      While you won’t be charging your device from them I don’t think you’re going to be causing any additional drain by using the feature. I find using the ALS feature a far more reliable way to ensure screen brightness is optimal, rather than trying to remember to turn it down myself.

    • james

      Im using a 7, 000 mAh battery from Zerolemon I bought from Amazon. Phone is thicker which I like. battery last me 1.5-2.0 days of heavy use. Zerolemon offers 180 day warranty as well. I use this on a Galaxy S3.

    • http://www.facebook.com/kunatiabhi Abhishek Reddy Kunati

      I got Note 2 , I no need worry about all this

    • Sam88

      Where can I find that dark wallpaper on the S3?

      • http://twitter.com/GorillaDaGoon Juan Gotti

        Take a black picture. Duh.

        • Sam88

          I was asking about the wallpaper shown in this article, in the pic under the heading Dark Themes.

          • http://www.facebook.com/santeri.liukkonen.1 Santeri Liukkonen

            Try searching something like dark carbon or black carbon… Or something like black honeycomb :)

    • http://jesuiscontentducontent.tumblr.com/ Yod-b

      About Tasker: I’m almost completely sure that there’s a trial, just not in the Play Store, but on the page of the dev. Check it out! :)

    • http://twitter.com/GorillaDaGoon Juan Gotti

      How to save battery life? Get an s3. I get more then enough juice. Never once have I desired to change the battery, but I like the option just in case. I can get about 12 hours minimum 18 hours max and under extreme conditions I have gotten a full 24 hours. See post by Timsmooth.

      http://forum.xda-developers.com/showthread.php?p=32485480#post32485480

    • choco

      honestly tho, what you really should do is lower the brightness and root to remove unncessary bloatwares. Other things doesn’t affect much. I run a bunch of stuff and it’s not really any different

    • Kamalesh A.P

      Well written article, Thanks!

    • Linda

      I have had my Note 2 for a few days. I have been on it non-stop & have not had a problem. I really do like it. Today I went through hundreds of HD wallpapers & the
      battery level is at 64%. This article was easy to read & understand. It helped a lot !

    • FrillArtist

      Very good tips.

    • cyber go
    • http://www.facebook.com/abdulmusawwir.khatri Abdulmusawwir Muhammad Qadri

      Is it bad if I wait for my battery to get down to 4% or less (but not 0%) and then plug-in for charging?

    • Facebook User

      Wow, what a great guide to improve battery life!

      I strongly recommend another app called “Wakelock Detector”

      It is a new trending app basically focusing on wakelock mechanism of Android OS.

      You will be able to find out which apps keep your phone awake when it is in deep-sleep mode!

      While developing this app, main purpose was to make it Simple, Understandable and Light.

      http://play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector

    • Nikolay Argirov

      Don’t forget Max Battery Booster, it can combine with every other energy saver https://play.google.com/store/apps/details?id=com.faygroup.maxbatterybooster&hl=bg

    • Mahrukh Hashmi

      Download any kind of PRO APPS or Paid Apps or Games from Android Market free

    • gommer strike

      Key tools to identify and take all the steps you need to maximize battery life(in addition to all the tips above):

      - root access
      - GSAM battery monitor(free, does not work on Kit Kat 4.4)
      - Wakelock detector(free, does not work on Kit Kat 4.4), use this to determine which apps are generating wakelocks and thus preventing your phone from entering deep sleep

      Great tips from the article, but it stops just short from addressing the elephant in the room. And that’s Google Now. The following should be done:

      Under Google settings in the app drawer:

      1) Location Reporting = OFF(which was reported above, good one)
      2) Location History = OFF
      3) Google Now = OFF

      Lo and behold. One of the biggest battery drainers outside of 3rd party apps has been addressed with the tips above.

      Facebook = uninstall, and create a Chrome or browser shortcut to the mobile web version. Reason? The service katana.facebook.com constantly generates wakelocks(which prevent your phone from entering deep sleep), even when yes, every single notification from Facebook is turned off.

      Google+ = uninstall – for the same reasons as Facebook app above.

      Greenify app is an amazing app, but for some reason it has problems hibernating Facebook. It can however, successfully hibernate Google+ and Maps as well.

      Email apps – HTC email, and other 3rd party vendor email apps are far superior in the sense that you can customize them to not poll for emails during off-peak hours, which is a huge boon for battery life.

      Cloud storage – Pick only one. I chose Dropbox over Google Drive as it generated hardly any wakelocks.

    • Iwan Haniyoto

      Another suggest: ;)
      Get a phone with big capacity battery like Lenovo P780, with 4.000 mAh, you can use the phone for call/messaging/browsing (no games) for 3 days. Lenovo build in power management very efficient, you only need charge 2-3x times in a week.

    • sulaksh M(Webez.in)

      Great man

      check mine http://goo.gl/wuqEOK

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