Philips Ultra Alkaline 6LR61E1B/10, Single-use battery, Alkaline, 9 V, 1.04" (26.5 mm), 0.689" (17.5 mm), 1.91" (48.5 mm) Philips Ultra Alkaline 6LR61E1B/10. Battery type: Single-use battery, Battery technology: Alkaline, Battery voltage: 9 V. Width: 1.04" (26.5 mm), Depth: 0.689" (17.5 mm), Height: 1.91" (48.5 mm). Type: 6LR61