CR2012 coin cells have been popular among major timepiece manufacturers such as Bulova, Timex, Seiko and Citizen, making this tiny battery one of the most common replacement batteries for name-brand wristwatches. This flat circular lithium battery also powers the backup memory on many electronics like digital cameras and e-readers, protecting against critical data loss when the main battery is removed.
The CR2012 coin cell battery features an exceptionally long shelf life (between 5 and 10 years) along with a low-drain rate, often providing many years of service before requiring replacement. Weighing in at a mere 1.4g and measuring about 1.23mm high with a 20mm diameter, this battery is highly resistant to leakages, making it safe and comfortable for use in wearable devices such as wristwatches and medical monitoring equipment like heart rate monitors.
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The CR2012 battery uses lithium chemistry that is known to operate longer than silver-oxide batteries. Lithium can also generate higher voltage than other elements. This battery offers longer shelf life which can last up to ten years. It weighs 1.3 grams and has a typical volume of 0.3 cubic centimetres.
The 3v CR2012 battery has a typical capacity of 58 mAh that is rated at t 30K ohms at 21°C. Its 129 milliwatt hr/g is perfect for precision equipments such as glucometer and other home health devices.