eunice,
too late, i'm doing it now. btw, i just to know from my collegue that if the location detector svc is on in your HP, it drains the battery v v fast. he had the same problem like yours for a few days and one day, he just turn it off, viola, the battery life is ok liao. may be you want to check if you have accidently turn it on? so, he told me only when you want to use the google map, then you turn on this service, else you switch it off. by default it is off.