In addition to the year's training activities, Frauenlob conducted a training cruise to familiarize navigation officers with the narrow waterways of the Danish straits in 1907. She also won the Schiesspreis for cruisers again that year. In October, KK Friedrich Boedicker replaced Mischke as the ship's captain. By 1908, she was the only member of her class still in active service, and on 19 January she, too, was decommissioned in Wilhelsmhaven. She spent the next six years in reserve, though beginning in mid-1912, she was thoroughly overhauled and four of her 10.4 cm guns were removed to install ten guns for training purposes, though she was not activated for this role. World War I Battle of Heligoland Bight Frauenlob was recommissioned into the fleet on 2 August 1914 as a result of the outbreak of World War I. She was initially assigned to III Scouting Group before being transferred to the newly-created IV Scouting Group on 25 August. When the British raided the German defensive patrols in the Helgoland Bight on 28 August, resulting in the Battle of Heligoland Bight, Frauenlob was anchored off Helgoland as distant support of the patrol line. The British raiders—the Harwich Force—consisted of two light cruisers and thirty-three destroyers under Commodore Reginald Tyrwhitt. Frauenlob received reports of the attack at 08:00 from returning picket boats. At about 09:00, Frauenlob and the light cruiser were sent out to reinforce the beleaguered German patrols. Frauenlob and Stettin shortly thereafter encountered the British cruiser and about six destroyers and they opened fire at 09:09. The ships quickly found the range and hit the British ship an estimated 25–35 times, disabling all but one of her guns and inflicting serious damage. One shell detonated a cordite charge and set Arethusa on fire. The ship's engine room flooded and her speed fell to . She turned away to starboard in order to escape from the punishing fire, but Frauenlob kept up with the badly damaged British cruiser until she disappeared in the fog. In return, Frauenlob was hit ten times, but was not seriously damaged; in all, five men were killed and another thirty-two were wounded. After the engagement ended, Frauenlob and the torpedo boat took the badly damaged minesweeper under tow and returned her to Heligoland, before proceeding to Wilhelmshaven. After completing repairs, Frauenlob joined the High Seas Fleet when it sailed in support of the battlecruisers of I