Need some advice we do a lot of off grid caravaning all year around rallys with our local da i have had my battery on my van for about 4 years now its still ok but talking to a few other campers they have two batterys on there caravan i have a 220w solar panel fitted to the roof and had no problem in the past but i always tell our lass to watch what were useing in the winter months so would fitting two leisure battarys linked together help me stop stressing this time of year when were away on our weekend rallys