Nokia
N 75 battery life
The phone is constantly looking for the 3G network- if you live outside of a 3G area, it makes the battery run down faster.
Follow these steps:
menu>
settings>
configuration>
connection>
packet data>
packet data connection: change to "when needed"
leave access point as it is.
I can't confirm that this works, I just changed the settings myself, but it makes sense.
Good Luck