Bad Battery? or Need more hacks?? Help~![I know,we R sick of battery issue]

[yjjadara]

Hi, All..

I tried every tweaks in this site for battery life, seriously. But no luck. I did google a lot to extend my battery life.

At least, I got pretty good battery life (1 day long) with Old-MightRom, but I love Sense 2.5. Right now, I have NRG 28008 M2.5 version, recently.

Carrier : Sprint
Radio : Verizon 1.03.09V. (I did flashdance when flashing with new rom)
Rom : NRG 28008 Standard M2.5
Hacks : tried almost already posted on the web site including reg-hack.
others : turn off push mail, not trying data updating (weather or data)

1. This morning I talk about 2hrs via bluetooth from full charge. After 2hrs talking, I got 29% left of battery.
2. takes only 4 or 5 hrs battery 100% -> below 50% with doing nothing. ( no talk, no data tethering)
3. so.. my battery is a bad one physically??
4. usually bring extra battery for emergency. or using car charger.
5. I need battery life of "at least" going ONE single day. ^^;;

Need help~!

Thank you in advance.