Dc Installation (12V); Battery Use And Distribution - Jeanneau LEADER 33 OUTBOARD Owner's Manual

- work on a live electrical system;
- modify the elecrical system of the vessel or the relevant diagrams: It is
important that installation, maintenance and any modifications be carried out
by a qualified marine electrician;
- change or modify the strength of the safety devices protecting against
power surges;
- install or replace electrical equipment or materials with components which
exceed the system's nominal electrical power capacity;
- leave the boat unsupervised when the electrical system is live, apart from
when the automatic bilge pump and the boat's fire protection and security
system are in use (where installed).
Electrical connections change over time. It is necessary to have the
boat's electrics checked regularly and at least once every two years by
a professional. Special attention should be paid to the tightness of the
7.2

DC INSTALLATION (12V)

7.2.1 Battery use and distribution

General points
The boat is equipped with a direct current electrical system.
The boat's electrical system comprises service batteries and the engine battery or batteries.
The service batteries serve as the power supply for all the boat's electrical components. The
"engine" battery is used only for powering the electric starter of the propulsion engine.
The boat may also be equipped with:
- a generator powered by its own battery;
- a bow thruster, powered by its own battery bank.
the batteries are charged either by a load distributor or:
- by the alternator linked to the engine when the engine is running,
- by the battery charger (where installed).
It is essential that a professional engineer connects the batteries when the boat is first
launched.
Always check the condition of the batteries and charge system before putting to sea.
The battery banks are isolated from one another by a charge divider (see below).
NEVER:
electrical connections.
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