There is also the option of using your vans battery to get you through the next couple of days. There is another connector on most SCR's that will give you an 'always on' option. If you move the supply cable to your controller/pump from your leisure battery to this connector then you will run off your van battery.
But you will need to charge that every other day. When running a pump off our van batteries, we would only get 4 days service before the van battery was flat. We experienced this with 2 single operator vans - twice with my son's Peugeot Partner and once with my sil's Ford Connect van.
But you will need to charge that every other day. When running a pump off our van batteries, we would only get 4 days service before the van battery was flat. We experienced this with 2 single operator vans - twice with my son's Peugeot Partner and once with my sil's Ford Connect van.