The world's longest-lasting battery specially for high-tech devices. Lithium battery with the same dimensions of the battery (LR06, AA), length 51mm and a diameter of 14mm 10 and the same voltage 1.5V and a capacity of 3500 mAh, a very special battery due to its great discharge capacity in case of the device needs 2.5 continuous amps and a life of 20 years, at 21 degrees with a weight of 15 grams and the great thermal variety of use that includes from -40º to 60º Its flat discharge curve makes it ideal for any device that need high or low power delivery. Capacity: 3500mAh. - Brand: Energizer - Type: AA Lithium L91 - Technology: Lithium - Voltage: 1.5V - Dimensions (Stack): Height: 51mm Diameter: 15mm - Batteries per Blister: 4