Task killers reduce battery life, especially if you are constantly killing apps off. Now, it might not seem like that should make that much of a difference, but it does. However, if you would have left it alone, it might have still been in a suspended mode, hence it would start up quicker and would not chew up battery. So, if you are using an app, and then you leave it and kill it, and then come back to it later, you essentially are starting it up from scratch again, which results in more battery life being killed off. #Lg g3 battery spy androidAgain, the Android OS will eventually kill off old processes when it needs more resources. Starting an app up from suspended mode skips a lot of those other necessary steps, hence it starts up quicker and doesn't eat up as much battery life doing so. When an app has to start up from scratch, there are a lot of other things that the Android OS must do to start that app up. However, those suspended apps will start up quicker and not eat up battery life as opposed to those that have been outright killed and have to start up from scratch completely. They are essentially asleep, but not dead (killed). Suspended does NOT mean it's still running and eating up CPU processes. Those processes that are killed require longer restart times than those that are suspended and not really doing anything. In essence, this is what a task killer does, but instead, it kills the process outright when maybe it doesn't need to be yet. If the OS detects that memory is getting low, then it will start actually killing off older processes that are in a suspended state, and it essentially chooses them based on various factors, but one is how old is it, has it accessed any Android services or resources recently, etc. As more and more apps come into focus and then leave, they also are saving their "states". The Android OS then basically shuts it down. Instead, they go into a suspended state where, depending on what the developer chose to do, stores certain information to allow it to start back up where the user left off. The apps you run, known as activities, do NOT continue running in the background when they are no longer in focus. But, if you are interested in why task killers could actually be a detriment to battery life, read on. If you're not interested, then you can stop reading now. Now, to warn you, I'm going on a teaching moment, so you don't have to continue if you don't want to, but I just wanted to go into more detail about how Android handles applications and resources. They are not interactive with the user and should only be used for certain circumstances, but nothing stops a dev from creating a service that could misbehave. Yes, it does have services that run in the background, and that's what they are for. What do you expect? I have to laugh when they complain like that.Īnd, as hilmar2k stated, shutting down apps constantly actually causes more battery to be sucked up. Yeah, it will if all your doing is shooting HD videos and playing games all day. I've had other people that I know who have this phone and they complain that when they shoot HD videos, and play their games for an hour or more, the battery life goes down quick. Plus, I leave it on all night because I use the phone as my alarm clock as well.īattery life on this phone is excellent. I had played some Game of War, placed and took some phone calls, sent and received various text messages, listened to music in the car on my way home and to do other errands for a total of almost an hour of music listening. At one point, I was at 28 hours and still had 50% left, and all of that was NOT on standby.
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