Electric System; General Description; Batteries And Charging - Ockelbo B21 CAB Owner's Manual

5. ELECTRIC SYSTEM

5.1 G
ENERAL DESCRIPTION
Your boat is equipped with a 12V DC electrical system, powered by a battery which is
charged by the engine. All main consumers are connected via fuses to the battery. Most
of the fuses are of auto-type and can be easily restored after the cause of the problem is
detected. All fuses are marked individually for a simple troubleshooting.
The main switch is installed immediately after the battery. It breaks all power except
bilge pump. The bilge pump has a permanent power supply to be able to operate all the
time.
When you leave the boat for extended periods, always switch off the main power to
avoid draining the batteries.
Ockelbo has equipped the boat with spare circuits to allow for auxiliary equipment
(aftermarket products) to be installed. They are labelled "spare" on the fuse panel. If you
choose to use them, make sure they are labelled for easy identification, and make sure
that the electrical installation is professionally done.
Any changes to the electrical system must be made by experienced personnel. To use
the hull as a pole (positive or negative, e.g. for earthing of the consumers) is likely to
cause major problems, including the risk of corrosion damage to the hull, and must
always be avoided. Batteries can generate high currents that can be lethal and can cause
sparks and fires. Make sure you always understand how the system works or use skilled
service technicians before doing any maintenance or modifications, such as disconnecting
batteries, adding equipment or repairing.
WARNING
Always disconnect the power using the main battery switch(es), before any work on the
electrical system. Failure to do so may cause electric shocks, or sparks that can ignite fuel
fumes. Always ventilate areas with fuel or batteries before any work, and never use open
flames in these areas.
CAUTION
When leaving the boat for longer periods, always turn the main battery switch(es) off to avoid
battery drain caused by accidental activation of remote switches. Failure to do so may hinder
the bilge pump from working, potentially causing the boat to sink in case water leaks into the
bilge. Never leave the boat unattended for lengthy periods, and check battery charge level
regularly as the bilge pump may drain the battery even when the main battery switch is off.
5.2 B
ATTERIES AND CHARGING
Refer to your engine owner's manual for exact batteries requirements. The battery
should always be installed and properly secured to prevent it from shifting during the
voyage and potentially cause damages or even fires.
5. ELECTRIC SYSTEM__PAGE 47