So my wife has a Razr M. This thing use to last well over a day even under pretty heavy usage. It's about a year old now, and the battery life has gradually done into the tank. She takes it off the charger in the morning, uses it for an hour(ish) for browsing during the work day, and 9 hours later it's dead. I had her unplug it an not use it and see how long it lasted. In about 18 hours it dropped from 100% to 10% with no usage other than 1 text message. It is on wifi at both work and home. I checked the battery stats and after sitting idle for 18 hours it's 36% wifi, 22% phone idle, and 12% cell standby. So it doesn't appear there is anything else going on there? The appears to be draining completely in less than a day just idling on wifi. Any ideas? Does she just have a bad battery? Oh, and she is also running juice defender.