Specifications of High Capacity 3400mAh Lithium AA Size Battery Size: 0.57*1.98 inch Voltage: 1.5V Composition: Li-Fe Capacity: 3400mAh Model: FR6 AA Appearance: Button Top NOTE:1.Do not charge/discharge with more than the specified current. 2.Do not short circuit the cell/ battery. May result permanent damage to the cell/ battery. 3.Store the cell/ battery in a cool dry place. Cycle(charge and discharge) the battery every 6-9months to maintain cell/battery performance.