Could you explain #1? Are you saying the SOC meter controls the charger?
There are many such combined / coordinated / distributed systems, and exactly where the "decision-making" happens is up to the mfg, and doesn't really matter. There does not need to be a full-fledged BM involved either.
The key point is that the endCharge timing is not the normal ballpark guesstimate, but precisely timed based on the shunt reporting true amps acceptance at the bank, precisely conforming to the mfg spec
> 2. Who is reprogramming their SOC meter as weather or usage patterns change? Why would one need to do that?
Unless usage / input patterns are relatively consistent, the proximity of the Float transition to the endAmps condition can vary enormously.
Regular systems cannot know the actual bank acceptance, so when loads are much higher or inputs lower, the Absorb Hold Time may be set too low, or in fact voltage should be kept at Absorb permanently, as the bank is **never** getting to Full.
Conversely, when inputs are higher and / or usage lower, AHT may need to be reduced to prevent harmful overcharging.
Of course 99% of trawler users do not live for long periods off grid without ICE sources running, or are OK with just replacing their banks more frequently.
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Perhaps another member here knows of other mains charging systems that have this feature. I am only aware of Magnum, and Victrons kept at older firmware versions. Maybe Mastervolt?
No, I am not interested in when Victron eliminated that capability, but would like to know why, and would like to see it return.
> Many of your posts display a lack of basic understanding of electricity
I am happy to be corrected, enjoy the fact I am learning new things every day.