Depends what your doing on your phone if your browsing the net 5+ hrs a day this is a battery burner then u will need to charge battery more often
Yes u can use apps to kill apps but I doubt it'll solve your problem
I use my s3 quad to browse net sometimes 5+ hrs a day so i need to recharge again that day sometimes
this is how smartphones are the battery doesn't last forever
I set the screen brightness to about 20% anything more looks too bright for indoor use
I have wifi & gps & bluetooth turned off cos I don't use those functions
I don't use apps to turn apps off
some times if your constantly killing apps through out the day this can be a bigger battery drain than if u didn't kill them
Also ads that are being sent to your phone when u open the app can drain battery more
If u bought a new top of the range car
would u drive it at 50 MPH cos it Burns alot of petrol
I doubt anyone would so why restrict your phone
Maybe get a bigger battery 3000mah or more may be a better solution
Sent from my GT-I9300 quad-core