Probably meant three groups of two batteries. Some antiques have 6V systems and some modern vehicles have 42 V systems. I've seen the 6V batteries, but I've never seen a 42V one.Hi joe what do u mean 3 24v batterys ain't all car batterys 12v
Perhaps someone can come up with a DC to DC converter that will do the job? I did a google search on the topic, found many, but not in that voltage conversion range.i am converting a bus into a mobile home and want to use the ups as my 240vac supply but i need to charge it on the road, i will plug in in 240 at caravan park.
steve