We never wrote a log but he knows we drop calls because we often drop them while talking to him.
My personal phone is a KRZR1, the skinny brother to the RAZR, and the battery life is great. It will last a whole weekend with moderate usage when I forget the charger.
I have a hands free Bluetooth device in my car and it's linked with it during my 45 minute (each way) commute and I haven't noticed any reduction in battery life.