3V CR2032 LiMnO2 Battery for watches, calculators, remote controls, key fobs, medical devices, fitness trackers
| Item | Technical Parameters | Conditions | |
|---|---|---|---|
| Nominal voltage | 3.0 V | Apply to all CR batteries | |
| Nominal capacity | 220mAh | Continuous discharge at 20℃ under 15kΩ load to 2.0V end-voltage | |
| Instantaneous short-circuit current | ≥250mA | Time ≤ 0.5′ | |
| Open-circuit voltage | ≥3.20V | No load test | |
| Storage temperature | 0~30℃ | Apply to all CR batteries | |
| Operate temperature | -20~60℃ | Apply to all CR batteries | |
| Self-discharge rate | ≤5% / year | Annual mean | |
| Test life | Fresh cell ≤230hrs 12 Month ≤220hrs | Load 3kΩ, till 2.0V end-voltage at 20~25℃, humidity 75% | |
Provides stable, long-lasting power for extended device operation.
Low risk of leakage or overheating under normal usage.
Operates reliably from -20℃ to 60℃ in diverse environments.
Small, lightweight design suitable for miniaturized electronics.
Top CR2032 li-MnO2 Batteries Manufacturers in China
VTCBATT is a professional manufacturer of CR2032 Li-MnO2 batteries, renowned for compact size, stable 3.0V output, high energy density, and long shelf life. With advanced production lines and rigorous quality management, VTCBATT delivers reliable large-volume supply for B2B customers in watches, medical devices, calculators, remote controls, key fobs, sensors, LED lights, and small electronic gadgets. Supported by strict quality control, international compliance standards, and flexible OEM/ODM service, VTCBATT is a trusted partner for businesses seeking high-performance CR2032 lithium manganese batteries with scalable manufacturing capability.
Discharge performance test data for the CR2032 (3V) battery
- Test Conditions: The batteries were discharged 24 hours/day under a 1000 Ω load resistance at 20°C±2°C until the voltage reached 2.00 V.
- Initial State: The average open-circuit voltage (OCV) across the 9 tested samples was 3.379 V.
- Discharge Life: The average time to reach the 2.00 V termination voltage was 85.30 hours.
- Consistency: The maximum discharge time was 89.68 hours, and the minimum was 81.41 hours, demonstrating the performance variance for this specific batch manufactured on March 14, 2022.
High-temperature CR2032 Lithium Manganese Battery
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Nominal capacity | 200mAh | Nominal voltage | 3.0V |
| Standard discharge current | 0.2mA | Max. pulse discharge current | 10mA |
| Max. continuous discharge current | 2mA | Working temperature range | -40℃ ~ +125℃ |
| Weight | 3.0g | Acceleration resistance | Max. 3300G |
| U.L. Component Recognition | MH28717 | – | – |
| Features & Benefits | • Ultra-wide temperature range • Stable output under high-speed centrifugation • Excellent sealing performance • Low self-discharge rate |
| Applications | • TPMS (Tire Pressure Monitoring System) • Smart Meter • Memory Backup |
Temperature Characteristics (Load 15KΩ)
This graph illustrates the discharge voltage curves of the high-temperature CR2032 battery under a constant 15KΩ load across various temperatures (-20°C to 100°C). It clearly demonstrates the cell’s robust performance in extreme environments. At elevated temperatures (60°C, 85°C, and 100°C) as well as the standard 20°C, the operating voltage remains remarkably stable near 3.0V for over 800 hours. Even at a sub-zero temperature of -20°C, it maintains a consistent working voltage above 2.7V. This highlights the battery’s exceptional reliability for demanding industrial applications.
Discharge Characteristics (20℃)
This graph demonstrates the discharge performance of the high-temperature CR2032 battery under a continuous 15KΩ load across a wide temperature spectrum. It highlights the cell’s exceptional stability in extreme conditions, maintaining a steady operating voltage near 3.0V for roughly 800 to 1,000 hours at elevated temperatures ranging from 20°C up to 100°C. Even at a freezing -20°C, the battery consistently delivers a reliable working voltage above 2.7V. This outstanding thermal resilience proves its dependability for demanding industrial applications.
Discharge Performance After 85°C Storage (1000 Hours)
This graph highlights the exceptional shelf life and thermal stability of the high-temperature CR2032 battery. It compares the discharge profile of a fresh cell against one that has undergone rigorous thermal aging—stored at 85°C for 1,000 hours. When subsequently discharged at a standard 20°C under a 15KΩ continuous load, the aged battery closely mirrors the performance of the fresh cell. It maintains a highly stable and reliable voltage output near 2.9V for over 800 hours before its natural decline. This minimal capacity degradation after prolonged, extreme heat exposure confirms the battery’s robust chemical design and superior sealing, making it an ideal choice for long-term deployments in harsh industrial environments.
Capacity vs. Load Resistance at Various Temperatures
This graph illustrates the relationship between the high-temperature CR2032 battery’s discharge capacity and load resistance across four distinct temperature profiles (-20°C, 20°C, 60°C, and 85°C), using a 2.0V cut-off. It demonstrates that the battery reliably achieves its nominal capacity of 200mAh under lighter continuous loads (higher resistance). Notably, elevated temperatures (60°C and 85°C) optimize the cell’s internal chemistry, enabling it to yield higher capacities even under heavier drain conditions compared to the 20°C baseline. While the sub-zero -20°C environment naturally reduces the overall accessible capacity, the cell still maintains a highly stable and predictable energy output. This data is highly valuable for engineers looking to optimize a device’s power consumption for specific thermal environments.
Why Choose VTCBATT?
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 will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application
The CR2032 3V LiMnO₂ battery is a widely used non-rechargeable lithium manganese dioxide cell found in cameras, flash units, tactical flashlights, laser devices, wireless sensors, smoke detectors, and other compact electronics that benefit from stable voltage and long shelf life. It comes in a small cylindrical form with high energy density and delivers reliable power in space-limited designs, performing well under high-drain and intermittent use. With a nominal 3.0 V output and low self-discharge, many models maintain useful capacity and voltage for years in storage and can have up to about 8–10 years of shelf life when stored properly. The LiMnO₂ chemistry also offers good leak resistance and dependable performance across a broad temperature range, making these primary cells suitable for both consumer and professional applications.
