LFP on Shore Power with Inverter/charger?
An inverter/charger requires that you have a battery connected (or some 12v source) so it will supply any 12v to the RV. (Unlike a converter that will do 12v with no battery) Some say not to float...
Forum Discussion
Coulomb counters/Ah meters work very well (when configured properly), and can easily track the battery SOC to 10% or so, which is plenty accurate for RV use. I am not sure why this is causing so much concern.
If you know the temperature of your LiFePO4 batteries, and the loads, you can probably get an estimate within 20% - 40% using voltage, but it is much more complicated than just glancing at your Ah meter.
I know folks like to fuss over their power systems (it is a hobby unto itself), but the point of a well configured system is the you don't need to be constantly thinking about it, it just does it't thing in the background. If you are running a decent size battery system of any chemistry, and Ah meter seems like a no-brainer, you can glance at it every once in while to make sure everything is OK, no need for tables, maths etc.
If you know the temperature of your LiFePO4 batteries, and the loads, you can probably get an estimate within 20% - 40% using voltage, but it is much more complicated than just glancing at your Ah meter.
I know folks like to fuss over their power systems (it is a hobby unto itself), but the point of a well configured system is the you don't need to be constantly thinking about it, it just does it't thing in the background. If you are running a decent size battery system of any chemistry, and Ah meter seems like a no-brainer, you can glance at it every once in while to make sure everything is OK, no need for tables, maths etc.
