Once upon a
time, you had to really keep an eye on your Android phone to make
sure the battery wasn’t being depleted immaturely. Manually toggling
connections, constantly adjusting brightness, and the like are basically all
things of the past now—but there are still things you can do to maximize your
handset’s battery life.
Then, with Android Nougat,
they improved this even further by making it a bit more aggressive: instead of
kicking in while the phone is completely still, Doze now works while the phone
is in your pocket, bag, or anywhere else it isn’t in active use. This means
fewer apps will take up precious resources on your phone when you aren’t using
it, translating to longer battery life.
And so far, it works exceptionally well. There’s just one problem: not everyone has Nougat, or even Marshmallow. If your handset happens to be forever stuck on Lollipop or KitKat (or older), there are still some things that can you do to make sure you’re getting the most life out of the battery
There’s a really simple way
to read this screen: the bars show when each particular sub-head is “on.” Since
I never disable my phone’s Wi-Fi, the screenshot above shows that Wi-Fi is
always on and connected. Same with Cellular network signal. But as you can
see, GPS, while always on, isn’t being used.
The “Awake” indicator shows when the phone was allowed to come out of a sleep state—this is what you want to pay close attention to. If this bar is basically solid and “on” all the time, that means something is keeping your device awake all the time, which is bad. You want to see very short bursts on the “Awake” bar while the display is off. (If the screen is on—which you can easily see from its status bar below—then the phone will naturally be awake as well. It’s not going to sleep while it’s being used, after all.)
If you’re seeing something different here, then there’s a problem. And, unfortunately, there’s no easy way to diagnose wakelocks without rooting your phone, which makes it difficult for casual users to diagnose battery issues. (If you do have a rooted phone, you can use an app called Wakelock Detector to pinpoint the problem.)
Source: http://www.howtogeek.com/howto/25319/complete-guide-to-maximizing-your-android-phones-battery-life/
Before we get
into the how, however, let’s talk about how far Android has
come. Back in Android 6.0 Marshmallow, Google released a new feature
called Doze Mode, which promised to improve battery life by “forcing”
the phone into a deeper sleep when it’s not in use—leave it lying on the table
or desk for a bit, and Doze would kick in, saving you precious juice.
And so far, it works exceptionally well. There’s just one problem: not everyone has Nougat, or even Marshmallow. If your handset happens to be forever stuck on Lollipop or KitKat (or older), there are still some things that can you do to make sure you’re getting the most life out of the battery
First: Know Where to Check
Your Usage
Look, this may seem like common sense, but I’m going to say it anyway:
if you think your battery is draining faster than normal, look at your phone’s
battery stats! This is very, very simple: just pull down the notification
shade, tap the cog icon (to go to the Settings menu), then scroll down to the
Battery section.
One some
devices—like most things from the Samsung Galaxy series, for example—this will
just show you a basic screen with some estimates. While those are marginally
useful, you’ll want to hit the “Battery Usage” button to see the real meat and
potatoes here.
On this screen,
you can see what’s chewing through your battery, complete with a nice graph and
a breakdown by app or service. If there’s an app causing issues, this is where
you’ll see it.
But wait, there’s
more! What many users may not realize is that if you tap on the aforementioned
graph, you’ll get a detailed look at when the device is awake—or “wakelocks” as
they’re generally called.
The “Awake” indicator shows when the phone was allowed to come out of a sleep state—this is what you want to pay close attention to. If this bar is basically solid and “on” all the time, that means something is keeping your device awake all the time, which is bad. You want to see very short bursts on the “Awake” bar while the display is off. (If the screen is on—which you can easily see from its status bar below—then the phone will naturally be awake as well. It’s not going to sleep while it’s being used, after all.)
If you’re seeing something different here, then there’s a problem. And, unfortunately, there’s no easy way to diagnose wakelocks without rooting your phone, which makes it difficult for casual users to diagnose battery issues. (If you do have a rooted phone, you can use an app called Wakelock Detector to pinpoint the problem.)
Source: http://www.howtogeek.com/howto/25319/complete-guide-to-maximizing-your-android-phones-battery-life/
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