It depends. Coffee pots that require 110v from either your battery bank and inverter or "shore power" tend to consume a lot of energy when they are heating up the water. Some of these may use upwards of 1,300 watts. 1,300 watts on a 12v power system through an inverter pulls over 10 amps of current if you were dry camping. So you would want to be careful to know the watt rating of your inverter as well as how many amps you can draw. Of course be aware of any other devices that may be pulling energy through the inverter as well.