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Annual inspections by you or your supplier
Preferably, have your system checked annually by your supplier or installer. They will inspect the system
for the following points:
• Proper functioning of all components.
• Potential moisture issues, corrosion of contacts, battery terminals, and/or connectors. Applying
contact spray preventively and potentially applying grease to battery terminals.
• Lubrication of the shaft from the engine block.
• Secure attachment of all terminal clamps and connectors.
• Tightening of all fastening bolts and nuts.
• Potential damage to cables and components.
• The condition and correct voltage of all *batteries.
• Loaded:
If you have a multimeter, check the voltage of each battery individually by placing the
meter in voltage mode on the positive and negative terminals of one battery while the
engine is running. There should be no difference between the batteries greater than 0.1
Volt. If there is, contact your supplier or installer.
• Unloaded:
After charging, measure the batteries individually again and once more check for any
significant differences between them. Refer to your battery specifications or consult
your supplier to ensure the voltage is high enough.
* Applies to series-connected lead-acid batteries.
• Potential imbalance in the motor/propeller shaft system.
• The correct settings of the display.
Winter Storage
During and after winter storage, the same recommended checks mentioned in the previous inspections
apply. Pay special attention to keeping the batteries charged. If there is a power source available for
your boat during winter storage, keep the shore power connected. Your charger will automatically turn
on and off as needed. It is advisable, however, to have the boat and batteries checked at least twice
during winter to ensure the charger is connected and there is sufficient voltage in the batteries.
If there is no charging point available for your boat, store the boat with fully charged lead-acid batteries
and disconnect the main positive and negative terminals of the battery pack. Ensure that no load is
connected to the battery pack.
For lithium batteries, it is advisable to store the boat for an extended period in the same manner, but
with batteries charged to around 50%. This prolongs the lifespan of these batteries.
Use of the engine in saltwater
When using in saltwater, it is important to pay extra attention to the following points:
• Properly seal the installation space(s) to prevent saltwater ingress.
• Ensure that these spaces are well-ventilated.
• Regularly inspect all components, especially the contacts, for corrosion.
• Clean thoroughly twice a year.
• Lubricate the shaft with grease.
• Use protective spray, if necessary, for the rest of the engine.