3V CR2032 LiMnO2 Battery for watches, calculators, remote controls, key fobs, medical devices, fitness trackers

• 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.

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.

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.