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How To Improve Your Android’s Battery Life

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There are quite a few settings and features on your phone that will drain battery life, sometimes without your even realizing it. To see what I mean, head to Settings > About Phone > Battery > Battery Use. You may see some things there you didn't realize were battery killers. Here are the settings that are most likely killing your battery, and how to turn them off when you don't need them.

Your Screen

            Your screen, especially if it's one of the new beautiful Super AMOLED or Super LCD displays, draws by far the most battery from your device. The best way to minimize your screen's battery usage is to turn the brightness down. By default, your phone should be on "Auto" brightness, which works, but might still use up more juice than you'd like.

android batteryIf you head to Settings > Display > Brightness, you can uncheck "Automatic Brightness" and put it on something like 10%. It'll be a little harder to see in direct sunlight, but you'll be better off everywhere else. Putting the Power Control widget on your home screen makes toggling between low and high brightness a lot easier, too, so that's a widget I highly recommend you use if you don't already. To add it, press and hold on an empty section of your screen, choose Widgets, and pick the Power Control option.

I'd also recommend lowering the Screen Timeout from 1 minute to 15 or 30 seconds under Settings > Display. If you tend to let your phone sleep automatically (rather than hitting the sleep button when you're done using it), this will help you save some life as well.

Cellular Data

            Unfortunately, one of the biggest battery killers—especially if you live or work with with bad service—is your cellular and data connection. Whether you've got a fancy new 4G phone or a standard 3G unit, your data will use up battery even if you aren't actively using the phone.

You can turn your data connection on and off using either previously mentioned APNDroid orpreviously mentioned Quick Settings. Toggle mobile data on when you need it, turn it off when you don't. If you're just planning on talking, texting, or sending a quick email, EDGE or 1X is more than sufficient. You can turn data back on when you're browsing and need the extra speed. It seems extreme, but it'll save you quite a bit of juice.

Unfortunately, these apps only work with GSM phones (AT&T and T-Mobile in the US); CDMA phones (like those on Sprint or Verizon) are left out. Some phones can turn off 3G from Settings > Wireless & Networks > Mobile Networks, but others will have to go the more complicated route. Sprint users can also turn off 4G with the previously mentioned Power Control Plus widget, while Verizon users can turn off 4G with the LTE OnOff app.


            When you have Wi-Fi networks around, use them. They'll automatically turn off your data connection and use Wi-Fi instead, which is better for battery life than cellular data. However, when youaren't around Wi-Fi, it'll actually drain your battery by constantly searching for networks to connect to. Apart from a few choice locations, I don't use Wi-Fi very much except at my house—so I'll turn Wi-Fi off with the Power Control widget when I'm out and about.


            Having Bluetooth on kills battery just like Wi-Fi does. If you don't use a bluetooth headset, just turn Bluetooth off entirely. Again, you can toggle it on and off from the Power Control widget, so on the occasions that you are using a Bluetooth headset, or transferring files over Bluetooth from your computer, you can quickly toggle it on right from your home screen.


            Everyone hates on GPS as a huge battery killer, but it probably isn't as bad as the others since it's unlikely that you're always using it. GPS only turns on (and drains battery) when you use it for something, like Google Maps or turn-by-turn navigation. Of course, if you use location services with Twitter, Facebook, or other social apps, then it may be turning on more often than you realize. Like the others, it can't hurt to toggle this one off using the Power Control widget when you're not using it, and then just turn it on when it's time to use Google Maps.

Automate These Settings

            Of course, toggling these settings on and off all the time isn't an ideal phone scenario that leaves you feeling like you live in the future. If you only use Wi-Fi at home and at your local coffee shop, for example, wouldn't it be nice if your phone just knew when you were there and turned Wi-Fi on for you? Or wouldn't it be nice if you could just have Bluetooth on during work hours, when you're more likely to use that headset?

Automate Any Setting with Tasker android

you can do all this (and way, way more) with one of our favorite tools, Tasker (or other similar apps like Locale andSettings Profiles). We won't get into how to use Tasker here, since we've already given you a full rundown before, but you can automate pretty much anything you want—like turning GPS on only when you open Google Maps, turning on Bluetooth only when you dock your phone, andscaling back on data usage at night.

If you'd rather not go through the trouble of setting all these up, of course, you can still do it manually. Again, I can't recommend Power Control or Power Control Plus enough—it makes it so easy to toggle those settings on and off.

Underclock or Undervolt Your Phone

            If you have a new, powerful phone, you probably don't need all that CPU power it's giving you. Rooted users can download and installpreviously mentioned SetCPU, which lets you adjust your CPU's clock speed. Tone the CPU down a little bit, or even create a new profile that turns it way down whenever your phone is sleeping—after all, why do you need your processor clocking out at 1 GHz when you're not even using it? You can also create profiles that underclock your phone more and more as your battery goes down, so once you get to, say, 25%, your phone sacrifices more performance so it can last as long as possible.

Underclock or Undervolt Your Phone android

You can also use a lower voltage kernel, which you can find around the internet or grab withpreviously mentioned Kernel Manager. Sometimes these can be a little less stable, and you may have to underclock your phone at the same time, but they can seriously give you better battery life.

Tweak and Uninstall Data-Heavy Apps

            While some apps, like Gmail, use battery-efficient push notifications, others (like the default Email client, Twitter, Facebook, and others) poll the server for data every so often to see if there are any new notifications. You want to make sure these are using battery-efficient intervals. You don't need your Twitter app checking for email every five minutes—every 30 minutes (or more) is fine. These can make a huge difference in your data usage, and will save you quite a bit of battery. Closing these applications when you don't need them is a great idea, too.

Tweak and Uninstall Data-Heavy Apps android

If you have apps you aren't using, uninstall them. Some apps will try to connect to the internet without you realizing it, and it's best to just uninstall them entirely. If it's a piece of crapware that came with your phone, you'll have to root and use Titanium Backup to freeze it. Also, get rid of any widgets that are constantly pulling data down, like Facebook widgets, weather widgets, and so on. Or, at the very least, make sure you can edit their settings so they only poll for data every half hour or hour.

Turn Off the Eye Candy

            Screen animations, live wallpapers, and other eye candy features can get pretty CPU intensive, so if you're looking to save battery life, turning them off is a great way to do so. You lose some of the "awesome" factor of course, but if you've done everything else and still aren't happy, this should give you a bit more juice.

Turn Off the Eye Candy android

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