【Tutorial】Stop Android from draining your battery

Battery draining quickly? Here are some options you should avoid turning on, as well as othing things you can do to save your battery life.

Activate Power Saver

This app can tweak settings on the fly based on how much juice is left. This includes lowering screen brightness, turning off cellular radio when not in use, and other battery-intensive activities. There are four settings to pick from, each with gradually more conservative settings, plus a custom profile where you can set what gets changed and when.

Disable unused connections

Features we use everyday such as WiFi and mobile data, as well as Bluetooth and GPS location tracking, still consume a bit of battery even when they're not being actively used. It's a good idea to turn off these features to prevent unwanted battery drain, especially when apps sync their data over the network, or needs to update the location info through GPS/Bluetooth and WiFi scanning.

Disable auto-sync

Google loves to keep your data up to sync between your devices, and periodically uploads and downloads information over your current network connection whenever you add, delete or change details related to your Google account. While this feature is incredibly useful if you use multiple devices (or like to keep backups of your data in the cloud), this also consumes quite a bit of battery life, especially if it goes on repeatedly in the background.

Adjust display brightness and timeout

One of the easiest ways to save battery life is to turn down the display brightness. A display set at maximum brightness consumes an exponential amount of battery life compared to a display set at minimum brightness, so it's a good idea to turn it down to comfortable levels to extend your screen time. Also, if you're the type who likes to leave their devices lying around without turning off the display, it's a good idea to turn down the display timeout as well so the screen turns off after a shorter period of time, saving battery life that would otherwise be used to keep the device running in standby.

Disable live wallpapers

Live wallpapers can kill your battery life by keeping the device's processors under constant load due to having to constantly render the beautiful images you see onscreen. So it's recommended to stay away from "feature-rich" live wallpapers and stick to ones that don't demand that much from the processors, or disable live wallpapers altogether.

Use minimal amount of homescreen widgets

Homescreen widgets alone don't really demand all that much from the CPU, but if some of these widgets periodically pull data from the network to keep information up to date (such as news tickers, RSS feed readers, etc.), this will have a negative impact on your battery life. Keep a minimal amount of these widgets to ensure your battery does not get drained too quickly.

Use a darker wallpaper (for AMOLED type displays)
AMOLED type displays have a trait more commonly referred to as "true blacks". That's because when AMOLED needs to display black, it simply turns off it's pixels, saving a whole lot of battery life compared to IPS LCD, which still needs the backlight even if it's just displaying black. So it's a good idea to use darker wallpaper when you have a device with AMOLED display, like ZenFone 3 Deluxe.

Enable Super Boost

ASUS Mobile Manager has a lesser-known feature called "Super Boost", which improves on the original Boost feature by letting you set options on which apps get closed and which ones do not, and ensures all running background apps get flushed from the RAM. However, unlike the original Boost feature where apps don't get closed if they are currently in the middle of something, Super Boost will immediately close any app that is not checked in the "rotected apps" list, so make sure to save all data before boosting with this turned on.

Prevent apps from auto-starting

Preventing apps from starting in the background is a much better alternative to using Boost to flush them from time to time. And Mobile Manager's Auto Start permissions feature does exactly that. Here you can set which apps can run on the background automatically and which ones do not. It's recommended to disable permissions for all the pre-loaded apps (these are enabled by default and may cause unwanted battery drain without you knowing), as well as installed apps that have no business running in the background (such as games, web browser, social media apps, etc.). Do note that you may get delayed notifications if an app is disabled from running in the background, especially on social media and chat apps like Facebook, Messenger, Skype, Viber, etc.

Restart the device
If all else fails, a quick restart of the device will usually fix most battery drain issues, by ensuring any app running or malfunctioning prior to the restart is closed. But if the battery drain still continues (most likely due to a persistent app or malware), you may have no choice but to factory reset (in case of persistent apps) or reflash the device firmware (in case of malware).

Bonus: Don't stare at the percentage meter
The percentage meter shows that your battery drained 2% in 10 minutes? That will still give you more than 8 hours of battery life if you keep up the same usage pattern. Not to mention that the screen is on, the processors and connections are active, everything is functioning at full speed, and you wonder why your battery is draining. Just save yourself the headache and don't. ;)

thank you for this gude very helpful for phone users

This is really helpful! Cheers!

Very helpful thread yet most zenfans haven't been able to read this again for quite sometime. 

Really helpful! thanks for this, Nikko!