Hey bobbypab, to answer your question or concern, from knowledge of jailbroken 3gS and experience best thing to do is one or more apps you download might have virus or some sort that drains it, best thing to prevent it is take everything out, restore your phone and check one app at a time and too much apps can also drain your battery fast. there are alot of helps on draining batteries, so take a look on the forums. One last tip, JB is fun while it lasts... but overall, I like my updated 3.1 with the jb for now.
09-14-2009 02:38 PM