The size of these batteries are kind of hard to find in the stores, so I purchased them when I seen them. They are of a size that aren't used in a lot of stuff. I use them in my Garage Door Opener and my Wireless Door Bell. The Masione 12V 23A Alkaline Battery 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. These Batteries are compatible with the following models:
E23A Alkaline, MN21 Alkaline, 23A Alkaline, N21 Alkaline, 23GA, LRV08, V23GA, BAT-012, LR23A, MN21, Innotek BAT-012, A21, V23GA Alkaline, A23BP, 8LR32, BAT012 Innotek, 1811A, VR22, 23A, Innotek BAT012. This Alkaline Battery 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. I received this for a discount for my honest, unbiased opinion. Click button below to see product.