G-day there, I'm wanting to run a 2000w 240v appliance for roughly 7hrs only 1 maybe 2 times a week, would anyone here have a idea on how many batteries I would need, which system would be best 12v system 24v system or 48v system , I know it will be a lot needed but I don't have good Neighbours to use a generator which would be best. Any help would be great thx..