I recently put together an off-grid system and everything seems to be working fine except for the battery SOC from the shunt. I have the Victron BMV-712 and 4 Battleborn 12v 100ah batts (24v/200ah) series/paralell config.
When I first put everything together it reached 100% charge the first day but after that the SOC doesn't reach 100%. The SOC reaches ~99.6% but each day it will drop ~0.2% each day. For example 99.6% (mon), 99.4% (tues), 99.2% (wedns), etc.
I entered the configuration from the battle born youtube vids mentioning 28.8V and 4% trialing current as the 100% full SOC. However I found Victron instructions say solar systems should be set 0.3V below the full SOC so 28.5V. I did this and the shunt will read 100% but this goes against battle born's instructions.
I was just curious if others have seen this and if they use the Victron settings or Battle Born. I was leaning towards going with Victron settings since it is their hardware. However since this is my first build I would like to verify with others that have done this before.
Thanks in advance.