try this:

click on options and choose the output configeration that you want i.e 8 stero 0 mono.

once you have done this i think you need to restart battery then move to the bottom right hand of the battery screen and there is a little window, hold ctrl while clicking on it then type the channel you want to output the sound on i.e 3/4

thats how it works with cubase, battery 2 is much easier to output you sounds to indivual channels and also has alot more i think 8 stero channels and 16 mono