we all suffer from Wats app problem of battery Drainage..doesn't we?
itz a fantabuless app but battery sucker..!
so the solution is go to settings>conectivity>destinations>Internet>go to acesspoint which u uses ..
then edit it...and make a username and pass for it. tick on prompt prompt password...thn whats app will nvr connect automatically as their is a password assigned to it..and no GPRS will be connected so no battery drainage,...! but u'll nt get msgs as well...when u use gprs it will also use and get u all ur msgs u missed...
itz for those users who want whats app to be installed and don't msg a lot..!