Ok i use my curve 8330 alot at home and have no problem with battery. Using 10-12 hours easliy and battery is maybe 50%
I come to visit my brother. Its in the country so the signal is very poor if ANY! So i basically dont use my phone while here, but my phone will still be dead after 8 hours of not using it!!
This is normal behavior. When you are in a low coverage area, the device is constantly searching for service which (naturally) uses more battery power.