1. A method ( 40 ) for operating a battery arrangement ( 14 ) of a motor vehicle ( 10 ), having the steps of: determining ( 42 ), by a device ( 16 ), anticipated environmental conditions and/or operating parameters of the motor vehicle ( 10 ), determining ( 44 ), by the device ( 16 ), an anticipated energy withdrawal from an electric energy storage device of the battery arrangement ( 14 ), calculating ( 46 ), by the device ( 16 ), heat loss from the battery arrangement ( 14 ) on the basis of the anticipated energy withdrawal, predicting ( 48 ), by the device ( 16 ), a temperature progression ( 30 ) of the battery arrangement ( 14 ) on the basis of the calculated heat loss and the anticipated environmental conditions and/or operating parameters, and setting ( 54 ), by the device ( 16 ), a temperature for the battery arrangement ( 14 ) on the basis of the predicted temperature progression ( 30 ).