DU Battery Saver can extend your Android phone's battery life significantly, here's our review

This story is sponsored by DU Apps Studio. PhoneArena's opinions in this article have not been affected in any way!

Developer: DU Apps StudioDownload: Android
Category: ToolsPrice: Free (with in-app purchases)

Raise a hand if you wish your smartphone could last longer between charges. All hands up? Good. That means we're all on the same page. But as potent as smartphones have become, even the best among them can't seem to last more than a day or two without needing a battery top-up. And that's a bummer, we must add. Luckily, we have apps like DU Battery Saver.

DU Battery Saver is an Android application built with one goal in mind – to extend the battery life of Android phones and tablets as much as possible. In fact, its makers claim that it is capable of providing up to 70% extra battery life, which is impressive no matter how you look at it. Best of all, the app can be downloaded and used for free, along with its premium features, but more on that in a few minutes. 

Launching DU Battery Saver takes us to a screen where we're presented with details about our phone's battery, including its temperature, voltage, and charge level. Also, the app provides an intelligent estimate as to how much time we have left until our battery dies, based on our current settings and usage pattern. But the true magic happens when we press that "Optimize" button. This instructs the app to start scanning for potential power leaks and for tweaks that can be made to improve our device's battery life. Sure enough, a scan confirmed that we had a few potentially power-draining apps that were running in the background.

To further optimize an Android device's battery life, DU Battery Saver runs through its settings and highlights those that may improve its battery life. For example, it may recommend using a lower screen timeout value, to lower the screen brightness, or to disable certain connectivity features – helpful tips for people who aren't experts on the ins and outs of the system. 

The option to have multiple power profiles is one of our favorite features of DU Battery Saver. Basically, each profile is a list of settings that are applied, either manually, or at a given time. For example, you may have a profile configured for minimal power consumption, which can be turned on at night or while traveling, or a profile for the part of the day when you're at work, with all connectivity features enabled. In other words, you're given the freedom to adapt your handset's power requirements to your daily routine.

Now, we already said that DU Battery Saver is a free app. There are some premium features, however, that have to be unlocked either with an in-app purchase, or with virtual coins – features like automatic scanning for power-hungry applications, scheduler power profiles, and managing the processor's clock speed (root only). The good news is that these virtual coins are obtained easily by downloading apps recommended by DU Battery Saver. So technically, you may have a fully working version of DU Battery Saver without spending a cent.

So that's DU Battery Saver in a nutshell. Overall, it is a really promising app, and we'd recommend giving it a try if you're not fully satisfied with your Android phone's battery life, regardless of its make and model. 

Developer: DU Apps StudioDownload: Android
Category: ToolsPrice: Free (with in-app purchases)


  • Simple to use, but has advanced features for power users
  • Useful widgets
  • Free
  • Premium features can be unlocked without paying real money


  • Cannot control GPS via profiles
PhoneArena rating:



1. BattleBrat

Posts: 1476; Member since: Oct 26, 2011

No no no, JUICE DEFENDER- Accept no substitutes! How do you think I got 6 days out of my HTC One M8?

9. Ashoaib

Posts: 3309; Member since: Nov 15, 2013

huawei mediapad x1 already have most of these features built into its UI... specially the notification of applications running in the background and the power they are comsuming

11. Max_Boost

Posts: 101; Member since: Sep 22, 2012

Oh yea? What's your screen time? Like, 5 mins? LOL

12. boosook

Posts: 1442; Member since: Nov 19, 2012

By keeping it switched off in a drawer and using another phone. :-P

2. itsdeepak4u2000

Posts: 3718; Member since: Nov 03, 2012

Same thumbnail confused me of having same article again. Anyways I was waiting for the review. Thanks.

3. Technobri

Posts: 84; Member since: Dec 10, 2012

So should I uninstall ds battery saver for du battery saver?

4. register unregistered

Why wrote twice Nick?

5. 0xFFFF

Posts: 3806; Member since: Apr 16, 2014

Thanks for being upfront with the article sponsorship. Some of the paid pieces do have some good information in them, like this one.

6. RandomUsername

Posts: 808; Member since: Oct 29, 2013

Wow... another crappy sponsored article... At least warn us on the homepage, otherwise it's just a waste of time.


Posts: 654; Member since: Jun 28, 2014

Greenify and DS, no BS.

8. saiki4116

Posts: 413; Member since: Mar 31, 2011

"Cannot control GPS via profiles" Don't mention that as a con, The api to control GPS was present in 2.3 but has been removed now, So those developers cant to do anything about that. Review Llama app

10. chebner

Posts: 249; Member since: Oct 17, 2011

Is there a way or an app that allows you to control what apps start up and run in Tue background by default? Something similar to msconfig on a Windows PC?

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