Unused apps opening

[annahart]

Alright, I've seen this question on here before but not put exactly like this. My phone's battery dies extremely quickly, as in within hours. I know what some on here have to say about a task killer, but I downloaded one and had more than 60 apps running. And most of them were ones like LivingSocial or RedBox, which I can't remember the last time I used. As long as I kill the apps, the phone runs great. But the apps come back almost immediately, so I have to stay on in constantly. What makes these rarely used apps even start in the first place? And how can I keep it from happening and killing my battery so quick?

Also, I just found a startup manager. It says that almost everything is starting up with the phone. Is that right?

 

[Adamsberg]

You'd these not used apps uninstall or disable.

BTW, do you see these 60 apps running on Settings, Apps, RUNNING?
Or does only the task killer claim it?
These apps might just saved their parameter data in RAM.
Such a process, not running, just remaining static in RAM doesn't use processor power, that's why it doesn't consumed battery.

Android tries to hold processes in RAM, as many as possible, in case their apps would be started again. That's saving processor power and therefore battery power.