The Duracell N (LR1, MN9100, E90) battery is a compact, cylindrical 1.5V alkaline primary cell designed for use in small electronic devices that require a high energy output in a small form factor. Measuring approximately 12 mm in diameter and 30.2 mm in length, it is ideal for specialty applications such as keyless entry systems, remote controls, medical devices, laser pointers, flashlights, and some vintage cameras.

This non-rechargeable battery features alkaline chemistry, offering stable voltage, reliable performance, and a long shelf life of up to 5 years. Duracell’s quality manufacturing ensures leak resistance and consistent output, making it a trusted choice for both regular and backup power needs.

Commonly referred to by various designations—including LR1, MN9100, E90, 910A, and N-size—this battery meets global standards and is interchangeable with other N-size alkaline cells from reputable brands.