Is there a way (switch, assistant, setting) that allows me to force a Quattro into Float -regardless of state of charge on the batteries?
I hope this hasn't been asked before, but search is not working at the moment (internal server error) so,
Here is my scenario, this deployment is in an RV.
I have a Quattro 24/5000/120 connected to a pair of 12V lithium batteries in series, with a BMV 712 monitoring them.
For half the year, this vehicle is spent "off grid", meaning no constant source of shore power (a generator is used to recharge the batteries).
In that scenario I manually manage the charge of the batteries to ~90% SOC (because evidence is showing it increases their lifespan over a constant 100% SOC). I do that by turning off the generator, and the batteries are allowed to discharge with regular day-usage. Then the recharge cycle is repeated.
That works great, however,
For the remaining half of the year, this vehicle is spent on-grid and has a constant AC input. That, of course, triggers the Quattro's charger functionality and it happily tries to recharge the batteries to 100% (with a *mandatory* and unnecessary 1 hour absorption as a bonus). And it repeats this cycle, anytime powerassist is triggered and the batteries are used temporarily (however little), thus discharging them enough to restart the whole cycle over and again.
I don't want it to do that :)
I believe that to be deleteriously burdensome on my batteries (or any lithiums for that matter), who would be much happier at ~50-60% SOC when operating in this "storage" mode.
And that's my issue.
I want to discharge the batteries to 50% and leave them there, while keeping the Quattro happily plugging along doing its other functions like passing power and power-assisting from the batteries as needed.
Is there a way to accomplish this with my Victron equipment?
I've tried a series of hacks to simulate this behavior. Primarily by using the charge rate assistant with an aux1 trigger switch. But even that, even though the assistant is set to 0 amps, when active, still isn't really 0 amps. It keeps a creeping 1.5 to 2 amps going, regardless - which eventually charges the batteries up anyway. Just slower.
Thoughts?
Thanks in advance for your help.