hi everyone , i have :
200ah 12 lifepo4 x2 batteries on my boat
victron multiplus 12/1600/70
victron bmv 712
victron gx touch
last time i used my boat was about 10 days about, when i left it it was showing 100% soc, according to the voltage history it showed 13.3v back then
i have a daily consumption of about 12a per day from a gsm router that is working there 24/7
boat is on a drystack so no solar or any shorepower on there
since i left the SOC was going down a bit every day as shown the graph
but tonight the S0C went down from 70ish to 10% , which of course triggered the alarm.
trying to understand why this happened ?
i was told by the dealer i should only look at the voltage and not the SOC , and that the battery hasnt been full in the last 30 days .
where is the issue here then ?
should my battery reach 14v when full ?
i charged it up fully and its showing 100% SOC now and voltage is 13.5v
reason im asking is if my batteries are 200ah each, so 400each as they are in parrallel , then 12a a day should be around 120ah less until today, so still should be very far from even 50% capacity, what am i missing here ? am i looking at this wrong ?
