Abstract: A method of determining an operating configuration of a water heater that includes: a power cord connected to a receptacle; a housing; a battery disposed within the housing, and a water tank configured to hold a volume of water and having one or more heating elements. The method includes obtaining power availability data; and determining an operating configuration including one of: a full power configuration where the water tank operates at a maximum power greater than 120V input voltage based on power from both the receptacle and the battery or power solely from the battery, and a reduced power configuration where the water tank operates at a reduced power less than the maximum power, based on power solely from the receptacle or power solely from the battery.

Abstract: A method of determining an operating configuration of a stove having: a cooktop having a plurality of heating regions; a power cord connected to a receptacle; a housing; a battery disposed within the housing, where the obtained stove use data comprises information regarding use of at least one of the heating regions of the cooktop. The method includes determining an operating configuration based at least in part on obtained stove use data and obtained power availability data, the determined operating configuration including one of: a full power configuration where the heating regions operate at a maximum power greater than 120V input voltage based on power from both the receptacle and the battery or power solely from the battery, and a reduced power configuration where the heating regions operate at a reduced power less than the maximum power, based on power solely from the receptacle or power solely from the battery.