Is this wattage to high for one battery? Will it drain my battery faster than if I had a 2000W or 1000W model even though I will not be using near its rated wattage? 2000w Inverter Generator My concerns are as follows: 1) I will be currently running this off of a single Marine Deep cycle battery. I know that I have more than enough power in this unit, but figured it was better to have it and not need it, that to need it and not have it. First let me say that all expect to use this for is to charge a laptop or cell phone and run a 600W coffee maker in the morning. Needles to say I bought the 3000W inverter and am now worried that I made the wrong decision. While I was there I noticed a 3000W MSW inverter fro 199.99. I went to Canadian Tire as they had a 1000W MSW inverter on for 89.99$. Hi All, I am going dry camping this weekend and wanted to outfit my 2010 Jayco 1207 with an inverter for some minor power uses. Motomaster Eliminator Mobile Power Inverter 2000w Manual.