If you're using rechargeable batteries, follow the manufacturer's charging instructions to avoid overcharging or damaging them.

The doorbell owner prefers Duracell to any other make as Duracell has a very good reputation for battery life, so she's very happy indeed. 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. It comes full of little electrons which somehow manage to find their way into the device being powered and it does the job it was intended to do. 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.

Duracell MN21 can fit many electronic key fobs, such as garage door openers, so the Duracell MN21 battery is a highly flexible battery that can be used in a large amount of applications. However, Duracell cannot guarantee the quality, safety, or performance of other battery brands, so using Duracell rechargeable batteries is recommended. Sold in packs of two, each MN21 battery has a nominal voltage of 12 V and 33 mAh capacity for long-lasting guaranteed power. 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. Having an extra MN21 Security battery on hand is never a bad idea in case of a power outage or natural disaster.

With reliability and long lasting power, these batteries are also used in calculators and watches, and can also be found to give superior performance for hand-held game devices.This set of two alkaline Mn21 batteries by Duracell offers an affordable replacement for your devices. MN21 Security alkaline batteries are compatible with A23, 23AE, GP23A, V23GA, 8LR932, LRV08, 8LR23, L1028 and ANSI-1181A battery sizes. Duracell is the world’s leading manufacturer of high performance alkaline batteries, specialty cells and rechargeables. 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. They are designed for use in Wireless remote controls, wireless doorbells and security systems (alarms, locators).

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. Available in a card strip of five, the GP 23A High Voltage Alkaline Battery is a small, cylindrical, 12 volt battery rated at a nominal capacity of 55mAh. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Duralock Power Preserve technology means that this Duracell speciality battery has up to 5 years of in-storage life. The MN21 batteries are extensively used in security applications, such as alarm systems, motion detectors, wireless PIRs, and magnetic reed switches.Duracell’s MN21 security batteries you will ensure each device always has the power source it needs to fulfil its task. 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.

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. Duracell Speciality 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. Duracell Specialty batteries have up to 5 years of in-storage guarantee so you can be confident these alkaline batteries will be ready when you need them. Your transactions and personal data will be held in a PCIDSS accredited system using secure encryption technologies. It is made with the same consideration and attention to detail as all Duracell products, with impressive battery life so it'll still be working when you need it most!When fishing for carp you don’t want to negatively influence the performance of you bite alarm by using cheap or low quality batteries. 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. 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.