hrm… I never had any luck with the AU version - no sound, as you said. But I haven’t had crashing problems with VST, either. I suggest you make sure you’re up to date with Renoise and Battery. Also, don’t open the AU in the same session. I’ve found that if I open the AU version of a plugin, close it, and then open a VST, it crashes. So just start Renoise fresh and try to load the VST.
Also, if you have Battery in your template song, take it out. Renoise doesn’t seem to like NI samplers in the template (it always crashes like crazy for me).
I’ve stopped using Battery in favor of Renoise’s built-in sampler… but you’re right that the Battery library is nice, and as a drum sampler it has some good features. I’ll give the VST version a try later and see if it works.
But don’t even bother with AU for Battery or Kontakt.
i use AU for Kontakt, and VST for battery. It’s a pain to get up and running the first time on a new install, but then seems to remain stable (for me).