Hi Tugster, as long as your battery is connected and your battery charger is switched on your battery will be charged. I am like you lucky enough to have my van at home. I leave the power on full time and the battery charger, they are designed to be able to do this. Warm the van up every week or so and keep it dried out and you will not suffer with the condensation problems like others have when you go away.Good luck JTS.