I haven't fished Battle this summer, but the last 2 summers I was out quite a bit. It can be a very tricky lake because it's structure is so different from what most people are used to. If you are used to fishing big soup bowls like Calling or Pigeon, Battle will probably kick your butt a time or two before you get a feel for it.
There are a lot of steep dropoffs and channels and a good chunk of the lake is not 'typical' walleye territory. We found the 'eyes in strange places, like when casting for pike off of weedbeds or suspended 15-20 feet down in 30 FOW.
Also, Battle is chock-full of shiners(just drop down a camera in the winter and have a look), so there is lots of natural forage.
I guess what it comes down to is be openminded. Keep changing speeds, depths, lures and presentations till something works. Once you find them, you won't be disappointed. The average Battle 'eye is a fair bit bigger and fatter than just about anything you'll see out of Pigeon.
hope this helps,