Salutations droid users request for help

Hello everyone:

I recently purchased the Samsung Epic and I am just getting acclimated to all that the phone can do.

It is my intention to optimize this phone's potential as a tool for work.

My biggest challenge right now is battery life.

I have downloaded the app killer and I have killed several apps but the battery conitues to drain rapidly.

I recently left the browser window open. Is this a major source of battery drain?

How can I maximize my battery life without stripping my phone of many of its rapid recall tools?