Following an overhaul and permanent repairs, "Electra" carried out amphibious training in Chesapeake Bay until the end of the year, then sailed from Norfolk on 11 December 1943 for the Pacific. She departed Pearl Harbor 23 January 1944 for the invasion of the Marshalls, and during the capture of Kwajalein furnished her boats for the occupation of the small islands north of the atoll, and refueled minecraft and small craft of the invasion force. After discharging part of her cargo, she sailed to Eniwetok where she supplied boats and equipment for the initial landings 18 February. After unloading the remainder of her cargo, "Electra" returned to Pearl Harbor 8 March.