Cagey said:There are a number of ways to mount batteries. If you don't want to route out a cavity in the body for a battery box, you can sometimes fit it into the control cavity cover like this...
Or, there are a couple ways to put clips inside the control cavity. There are clips to mount them by the wide side or the narrow side. Here's a good source for boxes and clips.
That's actually not a bad idea! my only issue is that I have a wooden control cover and I'd like to keep the back clean. But I have seen a clip that holds it up on its side. Just never sure how well they hold them...