The Energenie EG-BA-LR20-01 is a set of two alkaline batteries in the D (LR20) format, designed to provide reliable power for high-drain devices. Each cell delivers 1.5V and features a capacity of 18000mAh, making this 2 piece pack suitable for larger household electronics that require long-lasting energy without the need for recharging. These batteries are built with a standard cylindrical design, measuring 60.3 mm in height and 33.5 mm in diameter, with each unit weighing 140 g. Because of their D size and capacity, they are typically used in equipment like large flashlights or portable radios, where you can rely on the CE-certified build for consistent performance.