However, 'older' BR1220 batteries have a nominal voltage of 2.8 volts and a cutoff voltage of ~2.25 volts - regardless of the exact battery chemistry, BR1220 batteries have a more stable output voltage when compared with CR1220 batteries. The nominal voltage is 3.0 V, with a cutoff voltage of 2.0 V - very similar to the CR1220 battery. Operating temperature of BR1220 batteries is usually in -30☌ (-22☏) and 85☌ (185☏) range. The typical shelf life of the CR1220 battery depends on its self-discharge rate and varies generally between 4-7 years, although there are models with a shelf-life of up to 10 years - the best CR1220 batteries feature an annual discharge rate at room temperature ~1%.Ĭarbon-monofluoride lithium battery labels start with 'B', hence the label BR1220. Note: Actual capacity, of course, depends on the discharge current, discharge temperature, age of the battery, number of pulses per day, and similar. The nominal voltage is 3.0 V, and the cutoff voltage is 2.0 V.Ī typical example is a CR1220 battery, with a typical capacity of ~35-40 mAh, a standard discharge current of ~0.05 - 0.1 mA, and a maximum continuous discharge current of 1 mA. Manganese-dioxide lithium battery labels start with 'C' and generally their operating temperature range is between -20☌ (-4☏) and 70☌ (158☏). These are all button/coin 12.5 x 2.0 mm cells, that may differ in chemistry and thus their discharge characteristics.īR1220 and CR1220 batteries feature negative electrode made of lithium, while the positive electrode is either manganese-dioxide or carbon-monofluoride. While CR1220 and BR1220 are the most common labels for lithium 3.0 volts non-rechargeable button/coin cell batteries, other labels are used as well, including ECR1220, DL1220, VR1220, 5012LC, etc. Haven’t found your watch? Leave a comment and we will add it to our table.CR1220 Battery Equivalents and ReplacementsĬR1220 battery is a very popular non-rechargeable lithium 3.0V button/coin cell battery, commonly used in keychain LED flashlights, thermometers, key-less remotes, medical scales, PDAs, heart rate monitors, cameras, and other electronic equipment.ĬR1220 batteries are much more common than BR1220 batteries - they share the same physical dimensions, but they differ in chemistry and thus have different characteristics in terms of battery capacity, voltage, operating temperature, self-discharge rate, etc.ĬR1220 Batteries Features and SpecificationsĬR1220 and BR1220 batteries feature the same physical dimensions of (D x H) 12.5 x 2.0 mm (~0.4921 x 0.07874 inches). Remember the battery type and search it on Amazon. Use the search form and type one of these: g-shock watch name, number, or battery type. Your, Casiofanmag Team.Īs an Amazon Associate, earns a commission from purchases from its links to Amazon. Write your comment if you have some concerns and we will check it again. We accumulated battery information from open sources and cannot guarantee that our data is 100% accurate. Please, note! We are not affiliated with CASIO COMPUTER CO., LTD. The battery will be of the proper size and have the proper technical characteristics (compatible with your G-SHOCK). If you know this information, you may easily find the battery you need using our table below. Before seeking the battery for any CASIO G-SHOCK watch on our site, you need to know one of three points:
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