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
FWC wrote:If the battery is cold and loses 30% of the capacity does the counting of AH still add up? If you know the battery is cold the voltage will still be dropping quick in the last 30%.
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.
What ever system you have is but a guide. Keep your wits about you and all will be fine.
