Hi. I have caravan that is astound at home. I am about to fit a 6 stage charger/power supply from Aplujack Electronics to enable to to not keep having to change over the battery (100A EFB battery).
I mostly use hook up when i'm away. However, I go to a couple of rock festivals during the year that I'm off grid for, about 6 days each time.
I usually take a second 100A EFB battery and change over during th week. However come the end of the time the battery are probably nearing the 50% discharge level. I do not use 240V off grid but lights and electronics charging, fridge and radio do use the battery.
I also use a motor mover.
I intend to fit a couple of 115w Mono Victron Panels wired in series to give good voltage during dull and rainy periods (it always rains during these festivals, last year I had to use the motor mover to get the van out of the mud).
I know this is probably extravagant to just charge the battery a couple of times a year but i value the peace of mind that it will give whilst i am away. It also my also give me confidence to they more off grid trips.
I shall be covering the van when it's not being used in winter, so i'm not worried that the solar panels will not charge the battery as I can sue the smart power supply/charger fitted to the van.
What MPPT controller do I need, I already have a BMV 712 monitoring the battery voltage.
