I have noticed that the two 110Ah Elecsol batteries fitted in our camper are now 7 years old and may need replacing in the near future. I haven't tested them yet however I will do before we set off on holiday for 6 weeks. I like the peace of mind in having plenty of battery power as we spend a fair amount of time off grid. I was thinking of replacing both batteries with a single Varta 250/270 AH but notice that the original battery box/locker will not take the length of any batteries greater than 110 AH. Has anyone come across this problem and found a battery size greater than 110 AH that will fit in the compartment? Another alternative may be to extend the main leads and put a single 250+AH battery in the adjacent locker. Any thoughts/suggestions would be very welcome.