Now beginning the silly questions, none of which are silly if you know the answer but to a complete numpty like myself!!! Firstly, does anyone know what original standard battery is fitted to the Bolero 712? I don't pick up the van until the 18th and I am trying to research/forward plan suitable options for the way I perceive I will use the MH. I think one off my first jobs will be to fit another leisure battery and to try and cover charging options, there is a solar panel already fitted but at the moment I don't know the make output or anything else. I've noticed in a number of threads the term B to B charging so have done a little research, I by no means understand the techy jargon but my grasp of the idea is that charging between the leisure batteries and veh battery are optimized to get the most out of the alternator whilst traveling. I do however think that the cost of this type of system may be out of my budget range. During the research I have also read about "Advanced digital alternator regulators" again I'm not o fey with the techy stuff but it appears that this system performs the same function in a different way but at a more affordable cost. Any clarification advice in layman terms would be appreciated.