Energizer ultimate Lithium AAA batteries are the world's longest lasting AAA battery in high-tech devices, the best for MP3 players on the market. They also have a very long shelf life of up to 20 years. Some of the advantages of Energizer Lithium AAA are that they work at low temperature extremes where other types will not, excellent performance even after 15 year storage at ambient conditions and longer service than other primary battery types. Capacity 1.25Ah (1250mAh). Known as L92 or FR03 size batteries they can replace AAA LR03 R03 HP16 UM4 MN2400 Micro Mini Stilo. Voltage 1.5V. Capacity 1250mAh. Order before 3pm and we will dispatch today (Mon-Fri)