MN21 LRV08 AG23 Security 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. Most commonly known as MN21 battery, other names include LRVO8, AG23, 23A, 23AE, L1028, 8LR23 and V23GA.

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.

Having an extra MN21 Security battery on hand is never a bad idea in case of a power outage or natural disaster. 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. Browse our large selection for the best replacement for your MN21 battery demands.



MN21 batteries measure 10.3mm in diameter and 28.5mm in height with a flat terminal type. They also have a nominal voltage of 12 volts and battery capacity of 55mAh.