Just a point of clarification because I know DroidXcon would say the same thing. He did not develop EB01. EB01 is the leaked Froyo update for our Fascinates that Verizon has not pushed out yet. Adrynalyne got his hands on the leak and devloped pretty much all the versions we all have available here. DroidXcon did a hell of a lot of work to package all the different versions into what you have in this thread to make it easy on everyone to enjoy the Froyo goodness. So everybody make sure to hit the thank button as many times as you can on any of Adrynalyne's and DroidXcon's posts.
Now for your question about the battery. You can try the methods in post #1 or post #12 of this thread:
http://forum.androidcentral.com/verizon-fascinate-rooting-roms-hacks/58334-how-battery.html
And courtesy of user MonkeyGrass we have this method which worked wonders for my battery life:
Follow the battery life thread instructions about charging to 100%, power off and keep it charging til it hits 100% again, turn it back on, charge back to 100%.
Then power off, reset battery stats, and run your battery down to 5-7% off that single charge. Plug back in, and charge back to 100% (preferably with the phone off, like overnight)
If any of the battery methods works for you let everyone know here on the forums and hit the thanks button on whosever method worked for you.