I am using a SS 100/50 for 640w of panels on my RV roof and a SS 75/15 for a portable 200w suitcase. They are all on the same victron BT network but I see vastly different times for Bulk/Absorb and Float when looking at them. Depending on when I look at them I can see one controller is a couple hours into Absorb and the other controller still in Bulk mode. Is there some incompatibility there? They are all on the most current firmware offered. They are both talking to a Smart Battery Sense for temp and voltages.
I thought they used voltage to determine what stage they should be in, but that doesn't appear to be the case. Maybe I don't understand exactly how the controllers use my custom battery voltage settings? I have verified the voltage settings are exactly the same on both.
520 AH LA batteries, Float 13.5v, Absorb 14.5v and the unused Equilize 15.5v all provided by my Battery Manufacturers support team (Crown).
PS is there a document explaining what the controllers are supposed to be doing based on the battery voltages? What setting tells the controller to switch to Absord, is it when it hits my 14.5v Absorb setting? If so, is it just time that tells it to go into Float or is it another voltage.. I know it cannot be it seeing 13.5 as it was already above that. :)