Hey guys,
Having a problem with the charging on my Multiplus II (12v).
1st issue:
The Multi keeps going into absorbtion mode and sitting there for hours with 0 current going into the batteries.
The first time this happened the batteries were only at 66% when it went into absorbtion mode. It is still happening but I have managed to get batteries charged up to 80% (using solar, which is not great where I am due to shading and other factors) now but cannot go any higher as stuck on absorbtion with 0 current going into battery.
I realise it is not uncommon for charger to go into absorbtion mode at around 80% depending on how the settings are set. However, it is stuck here, not charging the batteries any higher.
It has worked fine for months up until now and I'm fairly certain it used to go into absorbtion at a about 85-90% SoC.
I will also add that the most recent time I turned on the generator to charge the batteries (still sitting at 80% SoC) it went straight into float mode?
So why would this be happening all of a sudden?
2nd issue:
While the multi is sitting there in absorbtion mode, if I leave it for an hour or so, the whole inverter just turns off, no lights, no power no nothing, until i reset it. I don't get any warning or any lights flashing, it just shuts off.
I've attached screenshots of the charger settings taken from Victron Connect with my MK3 adapter. None of these settings have been changed since this was installed and no firmware updates have been done.
I've also attached a screenshot of the multi in float mode showing the battery voltage.
240v supply to multi for charging is generator.
There is a Smart shunt with a gauge connected to the battery which is what I read SoC from. It is programmed to the correct size of the batteries but is not connected to the Multiplus II in any way.
Thank you in advance!
