"Kaiser Wilhelm der Grosse" served in the main fleet—the "Heimatflotte" (Home Fleet) and later the "Hochseeflotte" (High Seas Fleet)—for the first seven years of her career. She participated in several of the fleet's training cruises and maneuvers, primarily in the North and Baltic Seas. Her peacetime career was relatively uneventful and she suffered no accidents. She was decommissioned for a major reconstruction in 1908–10, after which she was assigned to the Reserve Division with her four sister ships, all of which were essentially obsolete by that time.