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5.8 Functions of the WaterWorld Battery Link
The BatteryLink integrates your batteries with the other compo-
nents of your WaterWorld drive. This results in an extremely reliable
system. In addition, the functions of the BatteryLink ensure that
your batteries are managed even better, so that they will last
longer. The functions of the BatteryLink are described below.
Accurate battery charge percentage
Due to the built-in smart shunt in the battery management system
in the battery, the current battery percentage of the battery is
always accurately communicated to the WaterWorld display.
The self-learning algorithm in the battery management system
corrects for degradation of your battery over time, so that the
battery percentage and sailing time remain accurate over the
entire life of your system.
High temperature power protection
When the battery gets too hot (60C+) it will switch off. To prevent
this, the BatteryLink will reduce the power of the motor before this
temperature is reached. When this happens you will receive a no-
tification in the WaterWorld display. Limiting the power gives the
battery(s) the opportunity to cool down and ensures a reliable
system that does not stop you unexpectedly.
Low temperature power protection
At low temperatures (below freezing) the BatteryLink protects the
battery. The power of the motor is reduced which gives the bat-
tery the chance to warm up before the maximum power can be
demanded. This will dramatically extend the battery lifetime.
Battery shut-off protection
In the case of a multi-battery system, it can happen unexpect-
edly that a battery fails due to low battery voltage, too high
temperature or some other problem. This can result in a chain
reaction where other batteries have to deliver too much power
beyond the limit as described in the specifications. This results in
shutting down all battery(s) and thus shutting down the system.
To prevent this, in this event the BatteryLink will limit the power so
that the remaining battery(s) always continue to work within their
specifications. This ensures that your system does not shut down
and you can continue sailing. You will receive a message in the
WaterWorld display with the error message.
Getting home safely
When the battery(s) are almost empty, it is important not to use
too much power from the engine as this can result in the batteries
failing. This is the case with all types of batteries. To minimize this
effect, with a low “state of charge” of the batteries, the maximum
power of the motor is reduced somewhat and you will receive
an error message. This ensures that you can always come home
safely and that you do not come to a standstill unexpectedly.
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