IFR 15270 batteries feature LiFePO 4 (Lithium Iron Phosphate) chemistry. These batteries are very similar to IMR batteries since they can provide plenty of currents with slightly lower capacity. INR 15270 batteries feature LiNiMnCoO 2 (Lithium Manganese Nickel) chemistry. IMR batteries commonly have lower capacity but are capable of delivering larger currents and are commonly used for high-drain devices (10-20C or more). Their nominal voltage is in the 3.6 - 3.7 V per cell range, with a maximum recommended charging voltage of 4.2 V. IMR 15270 batteries feature LiMn 20 4 (Lithium Manganese Oxide) chemistry. Note: '15270 battery' is a typical label for a rechargeable lithium battery 15 mm in diameter and 27 mm in height.ġ5270 batteries come in many versions depending on the chemistry, nominal voltage, BMS, etc. Standard CR2 battery (15.6x27mm) is non-rechargeable lithium 3.0 volts battery, and it is slightly larger than 15270 (15x27 mm) or 15266 (15x26.6 mm).ĭue to their very similar dimensions, most manufacturers label 15266 batteries as 15270 batteries and vice-versa. Many manufacturers test their batteries using 3s/7s cycles using 1200mA and 1800mA currents, which stresses the batteries even more - even under such load, Energizer CR2 batteries, on average, have an actual capacity of ~760 mAh (down to 1.8V), which is very similar to the nominal capacity of 800 mAh (down to 2.0V).īecause of such performances, CR2 batteries are commonly used in high-drain devices like cameras, range finders, compact EDC flashlights, pet training collars, laser sights, etc. Batteryġ200 mA, 3s/7s, 760 cycles, down to 1.8Vġ800 mA, 3s/7s, 400 cycles, down to 1.8Vĩ00 mA, 3s/27s, 900 cycles, down to 1.6Vĩ00 mA, 3s/27s, 1000 cycles, down to 1.8Vĩ00 mA, 3s/27s, 900 cycles, down to 1.5VĪs one can see, the CR2 battery can provide continuous currents of 10-20 mA easily.īut they are also excellent high-discharge performers, with the best models providing 900-1000 cycles (3 seconds ON, 27 seconds OFF) down to 1.5-1.8 volts at room temperature when discharged with 900mA current pulses. The following chart lists and compares the most important features of several very popular CR2 battery models.Īll models in the chart feature a nominal voltage of 3.0 volts, a nominal cutoff voltage of 2.0 volts, and a very low self-discharge rate.Īlso, the 'official' operating temperature is usually between -40☌ to +70☌, but one must be aware that the performances of these batteries depend on the temperature, and they perform best at room temperatures (20-25☌) and temperatures outside of -10☌ and 50☌ should be avoided, if possible. The shelf life of CR2 batteries depends on the model and the brand, but it is typically 3+ years, with some brands having 10+ years shelf life batteries (for example, Duracell DLCR2 battery features an annual self-discharge rate of ≤1%), which are highly recommended for standby devices or emergency devices (panic lights, EDC flashlights, medical equipment, smoke detectors, security devices, etc.).ĬR2 batteries are fairly common and are offered by most reputable brands, and getting good ones from online shops and local stores shouldn't be a problem. When labeling their batteries, many manufacturers use the 'standard' label of CR2 but also add a letter or two to emphasize the brand, for example.ĬR2 battery equivalents are commonly labeled as 1CR2, DL-CR2, DLCR2, 5046LC, CR15H270, EL1CR2, KCR2, etc.ĬR2 batteries are typically manganese-dioxide lithium 15.6 x 27 mm non-rechargeable cylindrical batteries, with carbon-monofluoride lithium 15.6 x 27 mm non-rechargeable cylindrical batteries ('BR2 battery') being very rare.
The typical capacity of the CR2 battery is in the 800 and 850 mAh range, although the actual capacity depends on the cutoff voltage of a particular device and drain conditions (discharge current, temperature, battery age, and similar).
The physical dimensions of the CR2 battery are 27 mm (~1.063 inches) in height and a diameter of 15.6 mm (~0.59 inches). Since they are very similar in dimensions to CR2 batteries, they are often labeled 'rechargeable CR2' batteries.ĬR2 battery is a non-rechargeable lithium battery with a nominal voltage of 3.0 volts and the cutoff voltage of 2.0 volts.
CR2 Battery Equivalents and Replacements - CR2 Battery vs 15270 BatteryĬR2 batteries are very popular cylindrical non-rechargeable 3.0V lithium batteries, commonly used in various devices like photo cameras, golf rangefinders, weapon-mounted lights, tactical and EDC flashlights, security devices, etc.ġ5270 (15266) batteries are rechargeable lithium batteries with nominal voltages between 3.0 and 3.7 volts, depending on the exact chemistry types and built-in Battery Management System (BMS).
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