Hi. My phone seems to be eating my battery away more than normal. No new apps have been installed and I am only using the phone how I normally have. what could be causing this? And also the in call volume is way to low, I am a gas engineer and working on site with this phone is a nightmare I can not hear a thing. Will the 2.1 update change this? I can not wear a Bluetooth headset for too long as it starts to hurt. Thanks.