4155 battery totally drained - why?

[olkush]

On several occasions, the battery on my 4155 has been totally drained - usually overnight. This time, I couldn't even get it to take a charge (no light when plugged into cradle) until I first took the battery out for a few seconds.

I have all the buttons locked so they don't turn it on, have power saver set to turnoff after 2 minutes and have WiFi on auto power save.

Before I turned it off last night, I had WiFi on with the Boingo client running - turned off WiFi and exited the Boingo client. I may have done this another time when the battery drained - but not sure.

Anyone have a simmilar experience or any ideas on how to prevent it?

[Pekkle]

I have only noticed that the 4155 turns on for no reason.. and that will contrubte to the battery drain over night.. but then my ipaq usually have 90%+ power the next day.

[AnswerDude]

Check activesync setting and see if if you have it set for automatically schedule sync. If yes, you may want to use manual or on connection option instead.

[olkush]

You were right Answer Dude! Active sync was set for automatic although I don't know why cause I remember having disabled this a long time ago. Anyway, have disabled it, so I' see if it ever happens again.

Thanks,
olkush