![]() ![]() ![]() In general, however, you should call at a port with a shore power connection every two to three days to fully charge the batteries again, unless the yacht is equipped with power generators.īut when are batteries actually “sufficiently” charged and what does “normal consumers” mean? Here it makes sense to deal with the concrete voltage / volt or consumption situation on board once before the start of the trip and to draw up a small “energy balance” (for example, in simple table form) – to prevent unpleasant surprises during the trip in time. Rule of thumb: motor at least five hours a day to charge the batteriesĪs a rule of thumb, if you motor for five hours or more a day at medium speed, you should – depending on the technical equipment of the yacht – have charged your batteries sufficiently (with about 250 amps, depending on the engine/alternator and batteries) to be able to use normal consumers on board for a while. If then in the darkness additionally the Navi lighting is switched on, 10 to 15 amperes come fast in addition. Especially when it is uncomfortably cold outside and the diesel auxiliary heater is running often and for a long time, a lot of additional electricity is consumed.Įspecially on sailing yachts, this can quickly lead to problems – particularly if it is a longer trip, anchoring in a quiet bay or long night strokes are undertaken under sail, because: when sailing, navigation devices such as chart plotters and autopilots still require 100 to 150 watts (so 8 to 12 amps). Many charter skippers are not sufficiently aware of the fact that normally there is much less electricity available on board a yacht than at home or in general: on land. ![]() For sailors in particular, it is also essential to be familiar with the power consumption on board if the trip is to be a success. ![]() If you are going on a trip with your yacht, you should be familiar with your boat, the traffic rules, navigation and the weather. ![]()
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