The Blog

Everyday Routine:

Surveiling the on board climate and battery status
Nerdiness Quotient: 7/10 Thanks to Victron Remote Management (VRM), it's easy to keep an eye on the onboard climate and the status of the Lithium batteries. The 24/7 online monitoring system provides continuous updates, offering reassurance that even when it is below freezing outside, the temperature inside remains well above zero degrees Celsius. Any DC or AC load can be easily monitored. The battery status of 68% is held more or less constant due to the charger settings of the Multi Pluss-II. (Described in the Oct. 25 blog) According to the Victron Smart LiFePO4 battery manual, the recommended State of Charge for long-term storage is between 60% and 80%. Since the boat is abandoned, the 'fridge' is not operational, so the temperature sensor has been placed directly on an un-insulatet part of the hull in a storage compartment without heating. The absolute coldest place on board..! When the YOYO Power 220V system thermostat (see picture below) kicks in, approximately 1600 W is drained
7 January 2026
Long time storage of Victron Lithium Smart Batteries
Nerdiness Quotient: 7/10 During winter, Moon goes into hibernation in its bed on the water. Shore power maintains the necessary power for heating to prevent frost on board. Normally the batteries are charged to 100% by the MultiPlus-II when shore power is connected, but as a strategy to preserve the batteries in the best possible way, they will be kept at a SoC (State of Charge) between 60% and 80%. To maintain this, Victron VRM (Victron Remote Monitoring) is used. With this asset I can control and adjust the SoC and any necessary charging via the network and the wifi router on board. Via the VRM I´m able to set the Maximum charge current as low as 0A. In this way any adjustment of the Smart Plus-II charging settings are at my finger tips, eighter via my phone or computer. Very practical.
25 October 2025
NMEA2000 network
Nerdiness Quotient: 7/10 The troubleshooting of the wind instrument provided a initiative for obtaining a full overview of the NMEA2000 network on board. Read about it here...
1 July 2025
Internet failover network
Nerdiness Quotient: 8/10 Internet has become a must wherever you go. Onboard there are two systems that keep us online most of the time. 4GXtream is a 4G router, which is used along the coast out to about 25 nautical miles from land. Starlink covers virtually all other locations. Both systems are connected to the same router with a "failover"so that 4G automatically takes over if Starlink goes offline. This way we don't have to switch manually on each device depending on which network provides coverage. Read about it here..
18 June 2025
OpenCPN O-charts
Nerdiness Quotient: 7/10 OpenCPN is installen on a Macbook Pro used as the onboard navigation and planning pc. The MaxSea navigation software has been used for many years and works very well, especially in conjunction with Furuno equipment. One ‘weakness’ of the program is that updating maps is quite expensive. OpenCPN is significantly cheaper in this respect. It was therefore nice to be able to update the relevant charts on the navigation PC for this season's trip. O-chart had very good charts for Iceland and Greenland, among other areas, at very reasonable prices compared to Maxsea and Navionics/Garmin.
6 May 2025
Missing wind info
Nerdiness Quotient: 5/10 When the season started, it turned out that the wind instrument didnt show wind speed or direction. Read about it here...
23 April 2025
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