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3V CR2 LiMnO2 Battery for cameras, sensors, medical and security devices

Li-MnO2

3V CR2 LiMnO2 Battery for cameras, sensors, medical and security devices

ParameterSpecification
ItemParameters
Capacity800mAh, 900mAh, 1000mAh
Discharge current20mA
End Voltage1.5V
Open circuit voltage3.00V~3.40V
-20°C discharge (20mA/1.5V)>600mAh
Operating temperature-40℃~70℃
Storage temperature5℃~40℃
Weights11g
Dimensions (diameter * total height)(Φ15.3 ±0.3) * (26.5 ±0.5) mm
Storage life10 years
Certification supportCB, CE, UL, UN38.3, MSDS, IEC61000, IEC62133, EU2023/1542

Product overview

3V CR2 LiMnO2 Battery for cameras, sensors, medical and security devices | Battery Manufacturers in China & Battery Supply Factory

3V CR2 LiMnO2 Battery with high energy density, stable output, low self-discharge, and long shelf life—ideal for cameras, sensors, medical and security devices.

01

Complete Guide to CR2 Lithium Batteries

CR2 batteries are known for delivering high energy in a compact form factor, making them ideal for devices that need strong power in limited space. From digital cameras and flashlights to medical instruments, CR2 cells play a critical role across many applications. Their long shelf life means they remain ready when you need them most. With a stable 3.0V output and typical capacities from 800mAh to 1000mAh, CR2 lithium manganese batteries provide dependable and consistent performance. This guide helps you choose the right CR2 battery for your device while highlighting key safety practices for storage, handling, and disposal. Use the right battery, follow proper safety steps, and get reliable power with confidence.

Complete Guide to CR2 Lithium Batteries
02

CR2 LiMnO2 Test Charts

These test charts show how a CR2 LiMnO2 battery performs under different loads, temperatures, and storage conditions. In the constant-current discharge graph, higher current (for example, 1000 mA) causes faster voltage drop and lower usable capacity, while low current (20 mA) maintains a longer, more stable voltage plateau and delivers higher capacity. The pulse-discharge graph highlights temperature sensitivity: performance is strongest at high temperature(60°C), acceptable at room temperature (20°C), and clearly reduced at low temperature (-20°C). The voltage-versus-temperature graph confirms that output voltage and discharge capability improve as temperature increases. The aging discharge chart compares initial performance with cells stored for 200 days at 60°C, showing reduced voltage platform and earlier cutoff after thermal aging. Overall, the figure demonstrates the battery’s practical strengths and limits in high-load use, wide-temperature environments, and long-term reliability evaluation.

CR2 LiMnO2 Test Charts
03

CR2 Battery Safety Tips

CR2 3.0V lithium manganese batteries are compact and powerful, but safe handling is essential for reliable performance. Store batteries in a cool, dry place away from direct sunlight, heat sources, water, and open flames. Never attempt to recharge CR2 primary cells, as charging can cause overheating, leakage, or rupture. Prevent short circuits by keeping battery terminals away from metal objects such as keys, coins, or tools. Do not mix old and new batteries or different brands in the same device, and replace batteries as a complete set when required. Avoid crushing, puncturing, disassembling, or dropping batteries, since physical damage may trigger chemical leaks or thermal hazards. Inspect batteries regularly for swelling, corrosion, or leakage, and remove damaged cells immediately. Keep batteries out of reach of children and pets to prevent accidental swallowing. Dispose of used batteries through authorized recycling channels according to local regulations to protect people, equipment, and the environment.

CR2 Battery Safety Tips

Technical insight

Product and application details

Alarm Siren

Alarm Siren

The 10-year storage life ensures readiness for critical security alerts without pre-activation degradation.

Blood Glucose Meter

Blood Glucose Meter

The compact 15.3mm diameter allows seamless integration into portable diagnostic devices for patient convenience.

Communication Device

Communication Device

Stable 3V output supports consistent signal transmission in remote monitoring systems without voltage drop.

Electronic Lock

Electronic Lock

Low self-discharge preserves charge for years, ensuring reliable operation of high-security access systems.

Laser Pointer

Laser Pointer

Lightweight 11g design reduces hand fatigue during prolonged use of precision optical tools.

Laser Rangefinder

Laser Rangefinder

High capacity delivers sufficient energy for intermittent high-drain pulses required in distance measurement.

Lighting Equipment

Lighting Equipment

Wide -40°C to 70°C range maintains performance in extreme outdoor environmental conditions.

Security Camera

Security Camera

Consistent discharge current supports continuous power demands for night vision and motion detection.

Factory capability

VTCBATT Production and Service

VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT provides comprehensive support from pre-sales to after-sales, focusing on customer feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your custom battery experts for reliable and responsive project support.

Modern Manufacturing

Modern Manufacturing

From raw materials mixing to cell testing, VTCBATT adopts automated manufacturing processes to improve production efficiency and battery quality, safety, and reliability. The manufacturing process is monitored and tested before material moves to the next procedure.

Trusted by Global Customers

Trusted by Global Customers

Over the past 20 years, VTCBATT has built partnerships with customers in more than 50 countries. Reliable quality, responsive service, and tailored battery solutions support long-term cooperation with equipment manufacturers, distributors, and brands.

Custom battery project

Discuss your voltage, capacity, size, and application requirements.

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