Aquatica Surveyor battery drain

Hi there, recently I have been noticing that the battery on my surveyor module is constantly needing to be changed. Note that I am NOT using the vacuum sensor, as I have a vivid, its just for the moisture sensor. On my nauticam housing I can leave it sitting around for months and when I go to test its fine. On the aquatica housing I change the battery and less than 2 weeks later its dead! Is this the expected battery drain on surveyor modules, do I need to pop out the battery every time I am not using it??

The battery in Aquatica Surveyor last several weeks and I use the vacuum sensor.

Regards Mark