Energizer Ultimate Lithium AA batteries represent the perfect choice for use in high-tech devices, and are an ideal choice for TV and film production companies. They have a long shelf life of up to 25 years, and will perform in extreme temperatures. Energizer Ultimate Lithium AA batteries benefit from a leak-proof construction, and are available here in a pack of 4. Energizer lithium AA batteries are also known as L91 or FR6 size batteries, and can replace types AA LR6 R6 HP7 UM3 MN1500 MIGNON. Length 50.5mm. Diameter 14.5mm. Voltage 1.5V. Capacity 3Ah 3000mAh. Order before 3pm and we will dispatch today (Mon-Fri).