Power your wireless doorbell or car alarm remote with these Duracell MN21 batteries. These 12V alkaline cells are designed for compact devices requiring speciality batteries. This 2-pack is a British product from a trusted brand.
Your wireless doorbell or car alarm remote needs these skinny 12V batteries, and standard sizes will not fit. These Duracell MN21 speciality alkaline cells arrive pre-charged and work straight away in remote controls, security systems, alarms and locators. The 2-pack gives you a spare for when the first one runs out, and they keep their charge for 5 years in the drawer so they are ready whenever you dig them out. Each 12V cell delivers dependable power in compact devices that demand speciality batteries.
Long life guarantee means these batteries stay reliable throughout their service life, powering your gear properly without dropping off. Superior nylon closure prevents leakage, protecting your valuable electronics from battery damage during use and storage. 5-year shelf life keeps them fresh for emergencies or kit you rarely touch, ensuring power is there when devices sit unused for months. Works across wireless doorbells, security alarms, car remotes and locators, fitting speciality slots where regular batteries cannot go.
