I am planning to get a sky digi box for the C van for my trips into France and beyond. Knowing how poor the electricty supplies are in France IE voltage drop, should I get a 12 volt box and use the vans battry as a buffer or is there a Sky box that will work on a reduced voltage as found on many sites. Any advice will be welcome, yes I know I must be sick to want to have a tv when abroad, but I will be living there not just on holiday.