I am running 3G half the day and Wifi the other half. Looks for gmail while on wifi every half hour. Don't use Foreca or Facebook widget but have a bunch of QBW and Calender-home. I have overclocked and runing max 805mhz during day and 250mhz during night. I normally get 30-48h usage. Could probably extend that if i didn't use the phone so much. So yes.. 5 hours is to little. Try charge it to max.. then remove and insert the battery again. Then charge again. DON'T do it to much as it could hurt your battery.