Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Ability to post and comment on topics and discussions.
A Free photo gallery to share your dive photos with the world.
The Luna uses an odd-ball CR12600SE (3V) lithium battery. If they are able to power it up, they may be able to go to the Personalization section of the main menu and see if any details were populated under Owner Information or Emergency Information.