time2roll wrote:
{Li no floating} is a bit of a conundrum for solar as I don't know of any controller that fully disconnects. Honestly I believe if the float voltage is set well below the fully charged resting voltage the typical RV will have no issues.
I would trust what particular Li manual says.
Those Li battery/charger combos that I've seen, recommended shut down. Some are automated and allow charging to either 80% or 100% or an arbitrary point in between, based on voltage (and then it shuts down). BMS would only protect from overcharging and overheating, overcharging meaning running the current past 100%.
In storage the recommendations were to top it up every 2-3 months (though it wasn't clear - with a cheesy charger that came with the battery or with one of better models that allow 80%). None of them was for 12V though. I hear that in electrical cars it does limit to 75-80%, whether BMS or the charging circuits.
Cell phone - yes, you should not keep it on charger when charging is completed. This is what it reads on the screen of my phone - "charging completed, please disconnect" :) ... For protecting charger, if nothing else. Don't know how sophisticated its BMS is, and when exactly it reads "completed" - at 80, 100, or several minutes past 100%. The industry approach is to treat it as a disposable and very short-lasting item, I usually keep mine longer than they would like me to, but their thinking makes me wary as to the product features.
