Hi all,total novice here... Have my camper about yr. Never used the leisure battery only EHU. Tried leisure battery today... Nothing don't know what I should do..
Sorry but this requires a broad broom as it could be many things. For starters do you have a meter that can measure output across the battery terminals? Voltmeter or multimeter, or the on-board panel (which may be the least accurate) . Google ‘caravan battery chart’ so you know what to expect.
I remember on my nephews VW camper, cira 2010, the leisure battery didn't charge from the van unless certain switches, were in the correct mode.
Could be something similar.
What camper or caravan is it.