We’ve been doing some specific battery-saving guides for weeks with options like Greenify or GSam Battery Monitor. Today we bring you a guide back to how to save battery on Android using a method more specific to computers than smartphones or tablets, but equally useful for the purpose for which it is intended.
Before proceeding with the guide, you must know that it is necessary to be a root user to perform this method, so I recommend that you take a look at our article on how to rooter any smartphone without PC. After making sure we have superuser privileges, let’s get down to work.
Reducing processor speed with CPU Tuner
As we have mentioned before, we will use a method used mainly in computers, but rather aimed at increasing the speed of the processor to reduce it. CPU tuner is valid for both purposes, but in this case, the one that interests us is the one to reduce the speed to obtain a better autonomy. There are other alternatives, but personally, I think it is the simplest and most useful for this guide.
Once you have installed the application, you will have to grant Superuser permissions to it to work properly. When you have granted them, we will have a list of different energy profiles, depending on our preferences. You can also create a custom profile, but if you want to let the application manage the processor speed is recommended that you use the Extreme profile. In our case, we will create a new profile that will fit the hardware of our team.
To create a custom profile you will have to press the plus icon in the top bar. Then the configuration of the profile in question will appear, which we will have to modify to our liking. First of all and for the settings to be applied while using the phone, you have to go to the Settings tab in the three points in the upper right corner and activate the option Activate CPU Tuner. Once this is done, we will proceed to configure the custom profile.
Configuring the custom profile
As we do not want to unnecessarily extend the guide, we will proceed to explain only the most important configuration of all, which is the maximum and minimum speed of the processor according to the state of the smartphone (screen off or on). To do this, we will navigate to the tab of Actual and we will determine if in the section of Trigger appears the status of Everything (or the name that you have given in the section of Triggers), otherwise, the settings will not be applied correctly. In the section of Profiles, we will have to first select the one of Screen on to configure it, since later we will proceed with the one of Screen Off creating another profile.
In the Controller section, it is recommended that you choose the option to save battery since the Maximum speed would consume much more. In terms of the maximum and minimum Frequency, it is advisable to decrease on the maximum about 200 or 300 Mhz, and leave the minimum frequency to the minimum value that our processor supports.
We will repeat the same process as in the On Screen option but selecting the Off Screen option in Profiles (remember that you have to create another profile, as we have done before). Regarding the maximum and minimum Frequency, it is advisable to decrease in this profile on the maximum about 400 or 500 Mhz, and leave the minimum frequency to the minimum value that our processor supports, as in the previous one. Because we will not use the terminal mienstras the screen is off, these frequencies seem enough to keep the system stable.
This is the basic configuration to achieve a remarkable to save battery. The profiles may not be correctly applied on your smartphone by the installed kernel, especially if you have an official ROM from the manufacturer of your phone. However, it should work for most terminals, but as I say, if you do not want to try strange configurations I recommend that you use those predefined by the application, such as Extreme mode.