Charging/al-Ko carrier

Hi to all craicers, was wondering how often I need to hook up the van to mains to give the batteries a charge. Usually didn't bother me as the van was always on the go somewhere and we don't use tv or inverters so batteries are topped up. Due to circumstances the van is only now used once a fortnight or so and only for a 20/50 kilometre run. Would 24 hours be enough every week or so?.
Am planning to get a solar panel fitted hopefully early next year to help.
Plus........has anybody got/seen/or heard anything about the Sawiko carrier from Al-Ko as advertised on the MMM magazine. I'm caught for space in my shed and the present carrier has to come off each time I put the van in, which is all the time. This carrier looks ideal as I am concerned about some bubbling around the fastening plates on the van.

It's a type of bike carrier that is placed on the chassis rail of the van,it eliminates carrying bikes on the body of the van. Can be recessed back into the chassis when not in use and looks just like the original bumper. Alko.......the people who make the extended chassis for fiat etc are making them.

Had a bad experience with a tow bar bike rack back in my old t5 days..........but that was then. Have seen some sort of drawbar/ rack in Donaghys a while back,will give the bold michael a shout.
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