I have a question regarding my Motorhome, AutoTrail Imala 620 2016. I was under the impression that when on Hook-Up the vehicle battery, in addition to the leisure battery, would be charged. However I am now doubting this as while on hook-up my starter battery has died and the vehicle wont start. I am currently charging the battery using a stand alone charger to determine if the battery is still ok. Am I wrong in assuming the vehicle battery will be charged on hook-up? What is the most simple way to check if it is charging when on hook-up? The vehicle hand book is not very helpful with regard to this subject. Thanks.