CR2450 Lithium Manganese Batteries

• CR2450 Button Cell Batteries: Everything You Need to Know

  

  Apr 07, 2025

  When it comes to choosing a CR2450 coin cell battery, many people are confused: Which one should I choose? Will choosing the wrong one damage my device? How long can it last? These questions may be troubling, but don't worry! This article will give you a detailed introduction to the specifications, uses, and how to properly select and maintain CR2450 button cell batteries.     What is a CR2450 battery? The CR2450 button cell battery is a compact lithium battery widely used in electronic devices. The "CR" refers to its Lithium Manganese Dioxide (LiMnO2) chemistry, while the "2450" refers to its dimensions: • Diameter: 24 mm • Thickness: 5.0 mm CR2450 is known for its high energy density and long life, and is suitable for a variety of small electronic devices such as remote controls, medical instruments, and IoT devices.    CR2450 Battery Specifications Specifications Detail Battery Type CR2450 Nominal voltage 3V Capacity 500-620 mAh（varies by manufacturer） Diameter 24.5 mm（0.965 in） Height 5.0 mm（0.197 in） Weight Approx. 6.5 g Chemical system Lithium manganese dioxide (LiMnO2) Operating temperature range -20°C to +70°C Self-discharge rate < 1% per year (at room temperature) Continuous discharge current 0.2-0.5 mA Maximum discharge current 1-3 mA (varies by manufacturer) Shelf life 5-10 years (depending on storage conditions)   How to choose the right CR2450 battery?     1. Device compatibility CR2450 is widely used in watches, car keychains, medical instruments, etc. Please check the battery compartment specifications of the device before purchasing to ensure compatibility. 2. Price and cost performance CR2450 batteries generally cost between $2 and $10, depending on the brand and the quantity purchased. Although cheap batteries may seem more cost-effective, high-quality batteries have a longer lifespan and are more cost-effective in the long run.  3. Well-known Brand Recommendations Some trusted CR2450 battery brands include Energizer, Duracell, Panasonic. These manufacturers are known for producing high-quality, reliable batteries that perform harmoniously. However, lesser-known brands such as Warriors also offer good quality at competitive prices.  4. Factors to consider when buying When choosing CR2450 button cell batteries, consider the following: • Capacity: The higher the mAh value, the longer the life. • Expiration date: Buy batteries with a long shelf life. • Environmental conditions: If exposed to extreme temperatures, make sure they are rated accordingly. • Package quantity: If you use them frequently, you may save money by buying in bulk.    Application scenarios of CR2450 batteries     Internet of Things devices: such as wireless sensors, wearable health devices. Remote controls: car key chains, TV remote controls, garage door remote controls. Medical devices: blood glucose monitors, hearing aids, electronic thermometers. Consumer electronics: watches, calculators, electronic timers. Toys and games: electronic toys, handheld game consoles. LED lighting: key chain lights, decorative light strings. Backup power: memory backup for electronic devices. Fitness trackers: pedometers, health testing equipment. Access control systems: RFID tags, smart door locks.   Advantages of CR2450 Batteries 1. High Energy Density -CR2450 battery is small in size but has high energy capacity. It typically provides about 620–620 mAh, which is ideal for devices that need long-lasting power. 2. Long Shelf Life -Low self-discharge rate means up to 90% of capacity can be retained after 10 years of storage - Ideal for use as a backup power source for storage devices or long-term use. 3. Wide Operating Temperature Range -Reliable operation in the range of -20°C to +60°C, can be used outdoors or in harsh environments. 4. Stable Voltage Output -Provides a stable 3V output, which is enough for many electronic devices such as watches or remote controls. 5. Compact Size -Suitable for small devices without compromising power supply. 6. Leak-proof Design -Leak-proof design reduces the risk of device damage.    CR2450 Battery Storage and Care Proper Storage Always handle these small button batteries with clean, dry hands to prevent moisture or dirt from affecting them. Avoid touching their flat surfaces, as oils from your skin can cause problems – potentially shortening their lifespan. Use non-conductive tools when inserting or removing the battery from a device to avoid short circuits.   Storage Tips for Extended Shelf Life For optimal storage of your CR2450, keep it in a cool, dry place away from direct sunlight – ideally between 10°C-25°C (50°F-77°F). Keep it in its original packaging if possible; plastic containers are also great for preventing moisture/accidental shorts, but make sure to keep it separate from other metal objects/batteries that could pose a safety hazard! By following these tips, you can rest assured knowing they will stay fresh and ready to go when you need them later!   How to Test Battery Performance To test your CR2450 button cell battery, use a multimeter set to DC voltage. A healthy battery should read close to 3 volts. If it reads significantly lower, it needs to be replaced. Some devices have built-in battery indicators; refer to the device manual for specific testing procedures.    Signs of a CR2450 lithium manganese battery failure Watch for the following indicators of battery failure: • Dimming of the device display or LED • Intermittent device operation • Frequent low-battery warnings • Unusual behavior of the electronic device     Can the CR2450 be replaced with another battery type? No. Use batteries that match the size (24mm wide, 5mm thick) and voltage (3.0V). Similar types (such as BR2450) may be suitable for low-drain applications, but have different chemistry and lower capacity.    Safety precautions when using CR2450 coin cell batteries: • Keep button batteries out of the reach of children to prevent accidental swallowing, which may cause serious choking risks or internal damage. • Avoid exposing the battery to high temperatures, do not puncture it or attempt to charge it to prevent safety hazards from short circuits or leakage. • It is recommended to store the battery in a cool, dry environment to maintain its optimal performance and extend its life.

  Hot Tags : CR2450 Lithium Manganese Batteries CR2450 Button cell battery Button Battery For Laser Pointer Wholesale

  Read More