Hi ooyama,
We tested these numbers experimentally. I don’t have the exact profile information in front of me right now, but the testing profiles were roughly this:
Light Use: Depth hold on, no current, hard maneuvering every 15 minutes for 1 minute.
Heavy Use: Full power descent for 5 minutes, then depth hold on, simulated constant 0.5 m/s current, hard maneuvering for 5 minutes every 15 minutes
-Rusty