I've gotten battle high a couple times as a paladin, but never battle fever, the technique is to weave in and out and never stay more than 5-8 seconds in.

also only snipe people with >25% hp or pop all your cd on a full life (pop dps cd as you go in, full swing, stun, spirits, cos, fb, sb, if its still stun then roh; if not, use stun then glory slash it back near your team mates then stun again then do another rotations) if you got another decent dpser helping you the healer would go down fast if it doesnt get any heals.

Another is to make sure to put a mark on em so you get help.