The batteries are normally charged by the alternators during the operation of the engines. As an alternative, you can recharge them with the battery charger from shore or with the generator.
| Description | Element number | Features element |
| Engine start | 4 | 12 V - 220 Ah |
| Generator start | 1+1 | 12 V - 120 Ah |
| Services batteries | 12 | 2 V - 640 Ah |
The batteries left unloaded over long periods of not operation, loose progressively their charge, until they become completely flat and get irreparably damaged.
NEVER obstruct the air intakes of the battery boxes as natural ventilation must always be allowed so that the batteries do not overheat.
While the engines are running, it is advised to set the battery charger thermic to OFF to avoid damaging the alternators.
Do not lay objects on the cases containing the batteries.
A frozen battery may blow up if used or charged; do not start a yacht with frozen battery. To prevent the battery from freezing keep it always completely charged.
The battery releases explosive gas: do not approach flames, sparkles or smoke near it. If the battery is used or charged in a closed area, check for good ventilation.
Do not check the battery charge by short-circuiting the terminals with metal tools: use a densimeter or a voltmeter.
EXPLOSION HAZARD
Any lithium battery powered device on board must be recharged only in open air areas, connected to a suitable charging system. Also please refer to the device dedicated Use and Maintenance Manual.