6. Batteries & Battery Switches
The systems on your yacht are all 12 volt. The batteries will need to be recharged as often as you
deplete them. Conserving power will result in less time needed for charging, so turn off systems
that are not actively being used.
Your yacht has two battery systems that are isolated from one another: an engine battery to start
the engine and a house battery bank to run your 12 volt systems. To check the levels of each, use
the up and down buttons (below the LED display) on the 12v instrument panel.
Your batteries will charge when the engine is running at 1400 rpms or more, whether sitting at a
mooring or motoring to a destination. Check the battery levels and make note of them before
turning on the engine.
Run the engine at 1400 rpms or more for a minimum of 1 – 1 ½ hours twice a day.
To check the resting battery level, shut the motor off and wait 15 minutes before checking (they will
remain in an excited state for about 10 minutes after shutting the motor off).
The house system should come to rest around 12.8v and then slowly get lower. When the system
gets to 12.2v you should start planning to recharge the batteries soon.
To rev the engine at 1400 rpms without engaging
the propeller, put the engine in neutral. Push in
the black button at the base of the throttle/gear
shift arm while increasing rpms to the desired
level.
