Duracell High Power Lithium CR2 Battery 3 V, Pack of 2 (CR15H270) Designed for Use in Sensors, Keyless Locks, Photo Flash and Flashlights: Amazon.co.uk: Electronics & Photo
Panasonic CR2 Lithium Batteries (2 Pack) – Retro Camera Shop
RS PRO Lithium Manganese Dioxide 3V, CR2 Camera Battery | RS