The CR2450 is a non-rechargeable lithium coin cell battery. The capacity of these coin cell batteries is double the capacity of typical dry batteries. They provide an output voltage of 3 V, have a typical capacity of 600 mAh, weigh 6.9 grams, and are 24.5mm in diameter and 5mm in height.
The CR2450 batteries contain zero percentage of mercury and it is environmentally friendly.
What does CR2450 stand for?
The naming convention of batteries according to IEC nomenclature. Each letter and number represent the following:
- ‘C’ stands for its chemical composition; i.e., lithium manganese dioxide
- ‘R’ denotes the shape of the battery, i.e., it is round
- The number 24 represents the diameter of the battery in mm
- 50 represents the height or thickness of the battery in mm
CR2450 Battery Equivalent
The best equivalents for a CR2450 battery are: DL2450, KECR2450, BR2450, E-CR2450, KL2450, ECR2450, KCR2450. All these have a nominal voltage of 3V and can be used as equivalents/replacements for CR2450 batteries.
CR2450 Battery Specifications
CR2450 battery has a higher nominal voltage and energy density than other lithium coin cell batteries. It weighs only 6.9g and is best suited for applications that demand higher power. The table given below lists the specifications of the CR2450 coin cell.
The negative electrode of the CR2450 battery is made of lithium and the positive electrode is made of manganese dioxide.
|Chemistry||Lithium / Manganese Dioxide (Li/MnO2 )|
|Nominal Voltage||3.0 Volts|
|Operating Temperature||-30C to 60C|
|Typical Volume||2.4 cubic centimeters (0.14 cubic inches)|
|Energy Density||183 milliwatt hr/g, 647 milliwatt hr/cc|
|Max Rev Charge||1 microampere|
|Typical Capacity||620 mAh|
|Self Discharge||~1% / year|
|Dimensions||Diameter: 24.5mm, Thickness: 5mm|
One of the excellent characteristics of CR2450 batteries is their long shelf life. For example, consider the Panasonic lithium coin CR2450 batteries. It was found that even after 10 years of usage, they still had 90% of their initial capacity. This is why unused Panasonic Lithium Coin batteries can be kept for up to 10 years.
This is due to a combination of lithium and manganese dioxide used in the battery which is chemically stable. Because of their outstanding reliability and safety, Panasonic batteries have received approval under the UL safety requirements in the US and wide recognition worldwide.
Applications of CR2450
The CR2450 coin cells are preferred in applications where conventional batteries are ineffective. Due to their higher power capacity, and compact size they can be used in products having snap-fit designs. The common electronic devices that use CR2450 coin cells are listed below:
- Digital watches
- Laser pens
- Computer motherboards
- LED flashlights
- Security systems
- Wearable electronics
- Car keys and car remotes
- Keyless door entry
- PDA mem-backup
- Medical devices
- Clinical thermometer
- Fitness appliances
- Calorie counters
What is the CR2450 battery’s lifespan?
The lifespan of 2450 coin cells depends on how frequently they are used. Using them continuously at standard operating conditions can last up to 1400 hours. But, if they are used occasionally or not used at all, they last up to 10 years.
What is the difference between CR2450 and CR2450N?
CR2450 has a capacity of 600 mAh, while the CR2450N has a capacity of 540 mAh. Thus, CR2450 has a slightly higher capacity than CR2450N.
Is CR2032 the same as CR2450?
Though the nominal voltage of both these batteries is the same (i.e. 3V), both of them has different capacity. CR2450 has a capacity of 600-620 mAh whereas CR2032 has a capacity of 210-230 mAh. CR2450 even has a larger volume than CR2032. Hence, they are not the same.