The Panasonic CR2016 lithium battery excels in compact devices due to its 3V voltage output, 90mAh capacity, and lithium manganese dioxide chemistry. With a 10-year shelf life and resistance to extreme temperatures (-30°C to 60°C), it powers medical devices, car keys, and IoT sensors efficiently. Its leak-proof design meets IEC 60086-4 safety standards for reliable performance.
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How Does Panasonic CR2016 Lithium Battery Chemistry Work?
The CR2016 uses lithium manganese dioxide (Li-MnO₂) chemistry. Lithium ions move from the anode to manganese dioxide cathode during discharge, creating a stable 3V output. This chemistry prevents voltage drops, enabling consistent performance in low-drain devices like calculators. Unlike alkaline batteries, it maintains 95% capacity at -20°C, making it ideal for automotive key fobs.
The advanced cathode material contains specially treated manganese dioxide with 99.6% purity, allowing tighter electron packing density. This engineering reduces internal resistance to 0.3 ohms – 15% lower than standard coin cells. During accelerated aging tests, Panasonic’s formulation shows only 2% capacity loss after 1,000 hours at 45°C. The lithium metal anode features a micro-porous structure that maintains stable ion flow even under sudden load changes common in garage door openers and RFID systems.
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Which Devices Typically Use CR2016 Batteries?
Primary applications include:
1. Medical: Hearing aids (87dB gain), glucose monitors
2. Automotive: Keyless entry systems (315-433MHz range)
3. Electronics: Motherboard CMOS, fitness trackers (3-axis motion sensors)
4. IoT: Bluetooth tags (20m range), smart labels
5. Industrial: Digital calipers (0.01mm precision), laser pointers
In smart agriculture applications, CR2016 powers soil moisture sensors that transmit data every 15 minutes for 2.7 years. Pharmaceutical companies use them in temperature-logging vaccine labels that monitor cold chain integrity. A single battery supports 50,000+ read cycles in NFC-enabled inventory tags. For automotive TPMS sensors, the cell’s -40°C cold cranking performance ensures reliable tire pressure alerts during winter months.
What Are the Key Specifications of CR2016 Batteries?
| Parameter | Specification |
|---|---|
| Diameter | 20.0 mm ±0.2 |
| Thickness | 1.6 mm ±0.1 |
| Weight | 3.1 grams |
| Energy Density | 620 Wh/L |
| Pulse Current | 15 mA (max) |
“Panasonic’s CR2016 sets the benchmark for coin cells through advanced dry cell technology. Their proprietary manganese dioxide processing achieves 99.8% purity, reducing internal resistance by 15% versus industry averages. For mission-critical applications like pacemaker backups, this reliability difference is non-negotiable.”
– Dr. Hiroshi Tanaka, Power Systems Engineer, Osaka University
FAQs
- How long does a CR2016 battery last in continuous use?
- At 0.2mA drain (typical for car remotes), it provides 450 hours. Smartwatches with 0.5mA draw last 180 hours. Always check device specifications for exact runtime calculations.
- Are CR2016 batteries rechargeable?
- No – attempting to recharge can cause thermal runaway (150°C+ temperatures). For rechargeable needs, consider ML2016 Li-MnO₂ cells with 500 cycles at 70% capacity retention.
- Why does my CR2016 battery drain quickly?
- Common causes include:
1. Parasitic drain (faulty device circuits)
2. Storage above 40°C (accelerates self-discharge)
3. Simultaneous contact with conductive surfaces
Test with multimeter – fresh cells should show ≥3.1V open-circuit voltage.