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If you have partially charged the batteries the on-board computer falsely assumes the
most recent charging level and under-estimates your charge and range.
2. At the beginning of each season the on-board computer has to be calibrated in order
to take into account the aging of the battery bank. To do so use the fully charged
battery bank on your boat and deplete it following the instructions below.
1. Charge the battery to 100% full.
2. Enter the information that the batteries are fully charged into the system as descri-
bedabovebypushingthe“cal”buttontwice.
3. Deplete the battery down to a voltage level of 21.7 V (Cruise 2.0) or 43.4 V respec-
tively (Cruise 4.0).
• Duringdepletionofthebattery,themotormaybestoppedbutnotswitchedoff.
• Duringthelasthalfhourofthedepletion,theinputpowerofthemotormust
range between 50 and 400 watts.
• Afterreachingthevoltagelevelmentionedabove,themotorwillswitchoff
automatically. The information system has measured the ageing of the battery
and the calibration is complete.
Please be aware: if you try to do the entire depletion on low power while the boat is tied
up in port, this may – depending on the size of your battery bank – take more than a day.
It should be easier to go through the final phase of a calibration run after a trip, when the
battery is already depleted to a certain degree.
If you would like to monitor the voltage level of the battery during the calibration, you
can use the multifunctional display of the outboard as a voltage indicator (respective
instructions are shown under 5.3.2.2).
If you conduct the calibration on the open water (and not tied up in port) please note that
the motor stops automatically when the aforementioned conditions are fulfilled, thus
signaling the completion of the calibration. The motor can be switched on afterwards to
head towards port. Note that the remaining range is low.
The calibration helps the on-board computer to learn how much capacity the battery
bank that is supplying the motor has lost through aging. These values are included in the
calculation of future charge level indications in percent and ranges. The on-board com-
puter overwrites the values stored in the set up menu for ampere-hours for your battery
bank. If you want to assess the status of the battery bank and check the capacity loss, go
into the setup menu, look up the value for ampere-hours and compare it with the original
values. Please do not change the value set during the calibration journey as otherwise
the on-board computer will make false assumptions.
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