OK checked it out. To have your SC automatically base its stop-charging (drop to Float transition) on direct measurement of trailing amps acceptance at the bank,
you need to add their "Whizbang Jr" BM.
This would not be cheap, and duplicates some of your BMV's functionality.
* Found one for $60 on Amazon. It's on the way. It should be able to attach to the shunt I already have.
> I will start turning the inverter off overnight.
Ideal would be whenever it's not actually being used.
*That will mostly be overnight as we are full-timing.
> I'm not sure how to check an AGM another way.
Never trust a charge source's judgement as to the bank being 100% Full.
Holding Absorb until that point does not just happen by default, the charge source's AHT settings must be adjusted until you verify it is doing so properly on a regular basis, by measuring the current taper with an ammeter at the bank's post.
* I will start checking this often
> How often do you reset the BMV to tell it the bank is at 100% Full?
Um.. I haven't. I will try to figure that now.
Ideal is every cycle it happens. Minimum would be weekly IMO.
* According to the bmv-702 manual, it should be auto synchronized when a set of parameters are met. There is also a manual synchronize option. I will read more into this and that when parameters are met if it synced.
Study this
https://marinehowto.com/programming-a-battery-monitor/
and all the electrickery posts at that site, by our own member Maine Sail.
* I will read this tonight.
> Not sure what a dmm is
multimeter, in this case voltmeter.
which is included with ammeters.
Also used to verify accuracy of those built into your BMV.
And to verify all your wiring and connections are sound, voltmeter for V drop, ohmmeter / checking resistance.
* As it so happens, I have two of these. I will watch some videos on how to.use them to do the checks you have mentioned.
I also bumped up the voltage to 14.9 on the SC. It has an absorb timer setting as well. I will have to reread the manual and do some more research into the best settings.
On a side not, I have seen the SC go into Float mode every week. But, like has been stated, manual checks and measurements should be done to ensure correct charging.
Linear Mode
