Hello,
I’ve recently added some extra capacity to my system, going from 560Ah packs to 1120Ah,
I updated the BMV-712 settings to say that I now have 1120Ah instead of 560 and now the SOC is wrong. It is telling me I have more capacity left than I actually do when I look at how many Ah I have consumed.
I’m pretty sure this was not an issue before and that it would say 50% when I had consumed 280Ah.
It now tells me, for instance if I have consumed 218.8Ah, that I have 86.5% SOC, when it should be around 80%.
Batteries have been fully charged and it sync’d to 100% SOC at least twice since I added the extra capacity.
I use all default values on the BMV except Ah capacity (1120) and Charged Voltage (27.6).
Any ideas?
Cheers,
Magnus