D E H L E R 3 4
Pay attention because the battery capacity is restricted. If the voltage is less than 10.5 Volt a
recharging of the batteries is necessary.
The essential circuits of the direct current consumers are:
• navigation lights
• interior and deck lighting
• electrical devices
• 220 V devices via inverters (according to the contract specification)
The interior and deck lighting consists of energy-saving halogen or fluorescent lamps and
requires relatively little power. The navigation electronics also require very little power.
Nevertheless, you should turn off the consumers you no longer need as soon as possible. This
can also be done centrally from the main control panel.
Is it not possible to recharge the batteries you must reduce the power consumption by switching
off of not necessary consumers. Nautical lighting has absolute priority. In case a capacity
bottleneck occurs due to a failure in the supply, all other consumers must be switched off first.
We recommend you to switch on the consumers according to their importance:
• By night only the navigation lights;
• Lighting of the chart table only if used;
• Navigation instruments, if necessary switch to ‚stand by’;
• VHF radio station only in critical situations.
If an autopilot is installed, it can consume a lot of power, especially
when sailing in heavy swell, because the electric drive may have to
carry out significant steering corrections depending on the swell
conditions.
The general lighting should also only be switched on when necessary. One should dispense with
the refrigerator box, the heating and other consumers that require a great amount of energy.
Remember to recharge the batteries when at sea, as well. Start the engine while sailing can
recharge the batteries up to the desired state so that the next most important consumers can be
switched on.
In case of malfunctions, you should check the electrical systems and installations to find out the
reason for insufficient charging.
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