With any device that runs on batteries power is a concern. There are many technics to save power, some advanced some not so much. Some of the technics in this article will require root in order to implement, others can be enabled with the built in functionality of Android. If you are having battery issues on your device i.e. it lasts a couple of hours the first step is to figure out what is using the battery.
Finding Battery Sucking Applications
Finding applications that are using your battery can be done using the built in battery app in Android or using the GSam Battery monitoring app in the Play store. There are other battery monitoring apps you can install on your device however for simplicity I will use the GSam Battery Monitory app for my examples. GSam Battery monitor will allow you to see what applications on your device are using the most battery power. Another important statistic is what applications are using wake locks. This is a process that prevents your device from going into sleep, keeping all of the components running using power including the ever battery exhausting screen i.e. LCD's and AMOLED's, using more battery power over time. There are some applications that are known to suck up your battery and are installed on many devices. These apps continue to run after you have stopped using them and drain the battery art an alarming rate. The GSam application will help you to find them.
Dealing with Battery Sucking Applications
Once you have discovered what applications are using the most battery on your device you then have to decide what to do with them. For some people this is easy, delete the application. Sometimes the application was pre-installed on your device and you are not able to delete it. What do you do in this case, well, there are a few different solutions to this problem.
Built in Functions to Save Battery
Some additional settings you can make on your Android device to save power are:
Remember to take this list with a grain of salt and make the changes that make sense for you. If you use Bluetooth all the time then it doesn't make sense to disable. Same goes for any other function you use. If you don't know what something does, look it up before disabling it, you might need or want it.