Since 2.0 upgrade my battery is horrible.

Try reducing the brightness (its surprising what difference a lower brightness setting can make to the battery life). If that doesn't help, and you're sure you've tryed as much as you can to conserve battery power, consider a restore.

 

Mine did this today until I changed MobileMe from Push to Fetch. I was still using push via Exchange and Wifi and BT were both on. If this happens look at your use time and see if the Usage and Standby times are exactly the same (or darn close). That is the one symptom I see when push acts up and keeps something active.

 

I'm having the same problem! my battery dies so fast i think it probably gives me like 3 and a half hours.

 

mines dying really fast too. however, i never used it that much at all before the new apps. all i used it for was to make phone calls. oh well...

 

Same here. I have push turned off completely though and I have the location services turned off also but it seems like I can watch my battery decrease by the minute!