Hi Guys - I have 4 120ah sphere lithiums charging off 8 x 180w solar panel on my basestation - solar charger is a victron smart solar 150/100 and i also have a Smart BMV 712 - I had to put the van in my shed to do some maintenance so it wasn't in the sun - normally the system is continuously charged so never had a problem before and had it made to be able to survive in storage mode for at least a week - after 2 days the my ph lost Bluetooth connection but then it came back on again and was on 78% so didn't worry the next day all the power had shut off and nothing worked so i went to get a 3pin plug to hook up the caravan lead to the house and when i came back it was back on again and now says 100% SOC but only at 12.09 volts . I havnt plugged it into the mains yet and want some advise what to do as I havnt seen this before and usually sits between 13.2-14.2V and it defiantly isn't 100%SOC as hasn't had a power source or sun for 4 days now