Hi John,
I like to keep any LiPo’s stuck on my projects ready to rip off at a moment’s notice. A bif to velcro on the battery and some on the underside of the box might work here, I also like the velcro reusable zip ties if something is a bit more sensitive(i.e. LiPo’s).
PS: Awesome idea making it out of wood, I’d also be weary of the antenna and protoboard having some interference, check out this post: ESP32-Cam WiFi Interference Issues with Makerverse Protoboards
