Lagoon 421, Owner'S Manual, Page: 57 / 122

LAGOON 421
6
ELECTRICITY
55
ELECTRICITY
The electricity onboard is 12 V DC.
The electrical system consists of service batteries. The batteries
supply power to all the functions on board (see SPECIFICATIONS
chapter for battery capacity).
The general 12 V system is turned on by switching to ON the battery
switches located in the port and starboard aft cabins.
• MAINTENANCE
Keep the batteries charged enough (essential to ensure them a cor-
rect service life).
It is possible to operate with the battery store charged to 80% on the
condition that the batteries are charged weekly to 100%.
The discharge of the batteries must not exceed 70% of the rating.
Use the battery charger when in a marina in order to start sailing
with properly charged batteries.
A battery monitor (DC meter meter on the electrical panel) enables
control of the charge,voltage and depletion rate of the service bat-
teries and of the generator (optional extra).
For its use see the instruction guide.
Always check the battery and charge system condition before you
put out to sea.
Keep the batteries clean and dry in order to avoid premature wear.
Have the acidity level of the battery checked if unused for long.
Check the level regularly.
Tighten and maintain the terminal connectors lubricating them regu-
larly with vaseline.
Batteries and circuit breakers
WARNING
A damaged battery will never recover its original capacity.
The service batteries should be charged to their maximum.