What do you think of this battery? GOLD 2430MAH BATTERY FOR SAMSUNG GALAXY ACE S5830 | eBay UK 2430MAH I'm seriously sick of only getting about 12 hours from full charge to empty battery on moderate use. I never have wifi or gps on,i close most progs down routinely and I still can't get a decent life from my battery. I rarley play games,just use it for texting,calls and a natter on ebuddy,google talk. Worth upgrading to this?