Hi All, I have a family that has a Wally Tender X model. They are BIG coffee lovers and want a Nespresso Inissia to be installed in the boat which will be able to give at least 6 cups of coffee per hour and when they go out, they spend at least 5 hours out which means I need to be able to get the machine to be able to function in order to produce this amount. The machine is 220V, 50/60Hz, 1260 W in their specs. Can anyone please advice me on what type of battery, specs, inverters if needed, cables for the power to flow through, etc. What do I need to get this machine to work for those hours. I can recharge the batteries when we get back into port.