i bought on ebay my evo 3500 extended battery. and i only get 12 hrs on my battery. i only have my a task killer working, facebook htc sense updtes once a day, my htc weather also updates onec a date. i dont get email, twitter updates one hour, no 4g gps , wifi and bluetooth. i have been searching about tips and tricks but i am very confuse. any idea how can i get the best about my battery?