What kind of battery does the Rival power meter use? April 15, 2021 20:30 Updated One Lithium AAA battery is required, capable of providing over 400 hours of use. Related articles How do I update the firmware of my Rival power meter? How do I change the battery in a Rival power meter? Can Alkaline AAA batteries be used in the SRAM Rival power meter? What chain lubes do you recommend for new SRAM RED and Force road chains? Can I adjust eTap 2x11 brake lever reach? Comments 0 comments Please sign in to leave a comment.