The Energenie EG-BA-6LR61-01 is a single-use alkaline battery in size 6LR61, designed for devices that require a steady 9V power source. With a capacity of 500 mAh, this single piece provides reliable energy for a variety of electronics, from smoke detectors to guitar pedals. Measuring 47.5 x 25.5 x 16.5 mm and weighing 44 g, it fits standard battery compartments while maintaining a compact profile. Each unit comes in a CE-certified blister pack, ensuring the cell is protected until you are ready to install it in your equipment.