Install the battery graph monitor, and repeat the steps your normally take that drains your battery, after say 30 minutes of leaving your phone idle, check how much it has degraded.

Do it again but this time: try initiating a connection then disconnecting, and then try restarting your networking services: [ as root '/etc/init.d/networking restart'], and brining your wireless interface down and back up: [ as root 'ifconfig wlan0 down && sleep 3 && ifconfig wlan0 up'].

Leave your phone to idle for another 30minutes and see if your battery has degraded at the same rate.