General Navigation app drains battery fast. Settings? Better App?

view story

http://androidforums.com – The navigation app drains my battery very fast. I am not very fond of the app to begin with, but it is convenient. I find that while it will get you there, when you're in dense areas or close to your destination, it is not real direct about how it takes you. Many zig zigs where a long straight line and one or two turns would be more direct. So I guess I have a couple of questions. Is there a better GPS app to use? On my last phone i used Drive by MotionX and I loved it. If no better apps, is there a way to alter settings or otherwise customise the existing navigation app to be (General)