Battery / landing

Having used ArduPilot / MavProxy / SITL for about an hour, these are some novice questions. Working through the ‘Setting up SITL’ guide, I have 2 questions:

  1. The battery depletes fairly quickly. Where do I set the simulator’s battery level?
  2. As a first test I do a very basic takeoff and go into circle mode. As soon as I activate circle mode, the vehicle descends and end up landing. Shouldn’t it maintain altitude in circle mode?

HI Jack… I am facing a similar issue… Did you happen to find a solution to it?

Sorry, no - in the end I gave up on the SITL and just went flying with the real hardware.