My phone just prompted me to upate the software...i'm on the fence as to whether I should or not? I don't want battery issues again.
How many people have seen negative battery issues after the latest update?
Enough have reported it for it to be considered - not all, but enough.
Until you decide, it's perfectly safe to back out of the update dialog - it'll remind you again in a few days, or you can ask for it under Settings.