Anrdoid users/experts help me?

[Tony]

i am new user of android tell me how to save the battery?
to save the battery normally i disable all the
applications except
1.settings
2. android keyboard
is it correct?
and another thing today i installed facebook and yahoo mail app both these apps shows up in the running app section all though i stop the service it within few min it shows up in the running app section why? does it eats up the battery??,

tell me wat app should because running when i dont use internet?

[Sarcasticbomb998]

Settings > Apps > Close running apps/