The MN21 batteries are extensively used in security applications, such as alarm systems, motion detectors, wireless PIRs, and magnetic reed switches.

For your wireless remote controls, cable-free doorbells or locators and alarms of security systems at home or at professional work environments, with Duracell’s MN21 security batteries you will ensure each device always has the power source it needs to fulfil its task.These A23 batteries are constructed of eight individual alkaline button cells with a normal voltage of 12 V. Duralock Power Preserve technology means that this Duracell speciality battery has up to 5 years of in-storage life. Users that have used the Duracell MN21 key fob battery in garage door openers have reported that it keeps a larger range, for a longer amount of time when compared to other batteries. Due to their uniform consistency, MN21 Security Batteries primarily function as the power for such consumer electronic devices as garage door openers, car alarms, and key-less entry systems.

Having one of our security batteries available as a replacement will ensure that your security system is kept active for a longer amount of time and that you have the right battery that suits your needs. When fishing for carp you don’t want to negatively influence the performance of you bite alarm by using cheap or low quality batteries. Duracell has always been known for its industry leading quality in manufacturing, and the Duracell MN21 key fob battery benefits from this level of quality.They are suitable for use in wireless remote controls, wireless doorbells and security systems (alarms, locators). Duracell Specialty batteries have up to 5 years of in-storage guarantee with Duralock Power Preserve technology so you can be confident these alkaline batteries will be ready when you need them. High quality Duracell MN21 12 Volt alkaline batteries suitable for a wide variety of items such as garage door openers, remote controls, car key fobs, garage door alarms, security cameras and many more items.

This particular range of battery are high quality batteries ideal for a range of equipment, including remote control transmitters, car alarm fobs and even electronic cigarette lighters. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded. They are designed for use in Wireless remote controls, wireless doorbells, security systems (alarms, locators). We had a terrible problem finding the right battery to repair our door bell and it was a nucience when it didn’t work.Sold in packs of two, each MN21 battery has a nominal voltage of 12 V and 33 mAh capacity for long-lasting guaranteed power. Please note you can recycle your batteries at our head office site, Unit 4 Beacon Road, Trafford Park, Manchester, M17 1AF where we have a battery recycling box in our reception area.

In some instances we may also offer a compatible solution from carefully selected brands such as 2-Power to compliment our range or to cover models that Duracell do not currently cover. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Sold in a pack of 2, these Energizer MN21 A23 Batteries are often found in a wide range of security equipment including alarms, key-fobs and intruder detectors. This set of two alkaline Mn21 batteries by Duracell offers an affordable replacement for your devices. If you're using rechargeable batteries, follow the manufacturer's charging instructions to avoid overcharging or damaging them.With a raised positive terminal and flat negative, each piece measures 28 mm in height and 10 in diameter. I’ve had the current battery which was supplied in for about 18 months so it’s about time I changed it. This high voltage makes it perfect for use in devices such as car and garage door controllers, as it improves the. Having an extra MN21 Security battery on hand is never a bad idea in case of a power outage or natural disaster. Duracell’s MN21 security batteries you will ensure each device always has the power source it needs to fulfil its task.