Opening the RBRcervata
The RBRcervata is serviced by opening the battery end-cap, allowing access to the controller, desiccant, and batteries, which are mounted to an electronics assembly atttached to the end-cap.
The battery end-cap is the one with the MCBH connectors.
Unscrew the retaining bolts from the battery end cap using a 5mm Hex/Allen key.
Pull the end-cap out of the RBRcervata pressure housing.
Do not twist the battery end-cap.
Remove and save the retaining bolts.

Retaining bolts, tightened to 1.7N-m

Remove retaining screws with the RBRCervata lying on one side