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N21 Alkaline (also known as 8LR23 or ANSI-1181A) is a dry cell-type battery mainly used in small electronic key fob radio devices, such as keyless vehicle entry systems, home security systems, garage door openers, and Bluetooth headsets. N21 Alkaline is cylindrical, smaller than an AAA battery, measuring only 28.9 mm long and 10.3 mm in diameter, with a typical weight of 8 grams; however, this battery must not be confused with a similar single-cell N battery.
N21 Alkaline is an 8-cell device with a nominal voltage of 12 V. The higher voltage is necessary for the radio frequency-transmitting and receiving devices which this battery often power. It has a capacity of around 55 mAh.
N21 Alkaline cross reference to the following battery:
- Energizer: A23
- Duracell: MN21
- VARTA: V23GA
- EVEREADY: A23
- NEDA: 1811A
- IEC: 3LR50
- Panasonic: LR-V08
- ELPA: SES-23A
- MS21
- VR22
- EL12
- GP23A
N21 Alkaline is compatible with the following models:
BAT-012 Innotek, MN21 Alkaline, LRV08, A23, BAT-012, 8LR32, GP23A Alkaline, MS21, BAT012, BAT012 Innotek, 23A Alkaline, K23A, MN21, L1028 Alkaline, L1028, 1811A, GP23A, RV08, EL12 Alkaline,
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