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Omnergy CR2032 3V 220mAh Lithium Coin Cell | The Industry Standard for PC, POS, and Industrial Reliability
The CR2032 is the undisputed cornerstone of global micro-power. However, not all CR2032 cells are engineered to meet the grueling demands of enterprise and industrial hardware. The Omnergy CR2032 3V 220mAh Lithium Manganese Dioxide (LiMnO2) Coin Cell Battery represents the apex of manufacturing consistency and chemical stability.
With standard dimensions of Φ20 × 3.2mm, this high-density power source delivers an optimal 220mAh capacity. Engineered by the principal drafters of national battery standards, it provides unyielding baseline power for PC motherboards, financial hardware, and automated industrial networks, ensuring critical data and real-time clocks (RTC) never fail.
Technical Specifications of Omnergy CR2032 3V 220mAh Lithium Coin Cell
| Technical Parameter | Specification |
| Battery Model | CR2032 |
| Chemical Composition | Lithium Manganese Dioxide (Li−MnO2) |
| Nominal Voltage | 3.0V |
| Nominal Capacity | 220mAh |
| Dimensions | Diameter: 20.0mm | Height: 3.2mm (Φ20 × 3.2mm) |
| Standard Weight | 3.2g |
| Operating Temperature | -20°C to +70°C |
| Self-Discharge Rate | <2% per year (at 20°C) |
Size of Omnergy CR2032 3V 220mAh Lithium Coin Cell
Characteristics of Omnergy CR2032 3V 220mAh Lithium Coin Cell
Full CR Series Lithium-Manganese Button Cell
| Model | Nominal Voltage (V) | Nominal Capacity (mAh) | Nominal Current (mA) | Maximum Continuous Current (mA) | Maximum Pluse Current (mA) | Max Dimension (mm) | Weight (g) |
| CR920 | 3 | 20 | 0.1 | 1 | 5 | Φ9.5X2.0 | 0.55 |
| CR927 | 3 | 28 | 0.1 | 1 | 5 | Φ9.5X2.7 | 0.6 |
| CR1025 | 3 | 30 | 0.1 | 2 | 5 | Φ10.0X2.5 | 0.7 |
| CR1216 | 3 | 25 | 0.1 | 2 | 5 | Φ12.5X1.6 | 0.7 |
| CR1220 | 3 | 38 | 0.1 | 2 | 5 | Φ12.5X2.0 | 0.8 |
| CR1225 | 3 | 50 | 0.1 | 2 | 5 | Φ12.5X2.5 | 0.9 |
| CR1616 | 3 | 50 | 0.1 | 3 | 8 | Φ16.0X16 | 1.2 |
| CR1620 | 3 | 70 | 0.1 | 3 | 8 | Φ16.0X2.0 | 1.3 |
| CR1632 | 3 | 120 | 0.2 | 3 | 8 | Φ16.0X3.2 | 2 |
| CR2016 | 3 | 80 | 0.1 | 5 | 15 | Φ20.0X1.6 | 2 |
| CR2025 | 3 | 150 | 0.2 | 5 | 15 | Φ20.0X2.5 | 2.6 |
| CR2032 | 3 | 220 | 0.2 | 5 | 15 | Φ20.0X3.2 | 3.2 |
| CR2050 | 3 | 330 | 0.4 | 5 | 15 | Φ20.0X5.0 | 4.7 |
| CR2320 | 3 | 130 | 0.2 | 6 | 20 | Φ23.0X2.0 | 3 |
| CR2325 | 3 | 190 | 0.2 | 6 | 20 | Φ23.0X2.5 | 3.3 |
| CR2330 | 3 | 260 | 0.2 | 6 | 20 | Φ23.0X3.0 | 4 |
| CR2335 | 3 | 300 | 0.2 | 6 | 20 | Φ23.0X3.5 | 4.3 |
| CR2354 | 3 | 560 | 0.4 | 6 | 25 | Φ23.0X5.4 | 6.9 |
| CR2430 | 3 | 270 | 0.2 | 7 | 25 | Φ24.5X3.0 | 4.5 |
| CR2450 | 3 | 600 | 0.4 | 7 | 25 | Φ24.5X5.0 | 6.8 |
| CR2477 | 3 | 1000 | 0.6 | 7 | 25 | Φ24.5X7.7 | 10.5 |
| CR3032 | 3 | 500 | 0.4 | 10 | 30 | Φ30.0X3.2 | 6.8 |
| CR3832 | 3 | 850 | 0.8 | 20 | 75 | Φ38.0X3.2 | 11 |
The Engineering Edge: Why Specify the Omnergy CR2032?
1. Robust 220mAh Baseline Capacity
Equipped with highly purified manganese dioxide, our CR2032 maximizes active material density within its 3.2mm profile. This robust 220mAh payload ensures years of continuous, passive backup power, drastically reducing field maintenance and battery replacement cycles for end-users.
2. <2% Annual Self-Discharge for Extended Shelf Life
Supply chains require predictability. Thanks to advanced crimp-sealing technology and premium organic electrolytes, the Omnergy CR2032 restricts its self-discharge rate to less than 2% per year. Devices can sit in global distribution channels for years and still wake up with peak voltage upon activation.
3. Industrial-Grade Thermal Stability (-20°C to 70°C)
From tightly enclosed, heat-generating PC server racks to outdoor industrial utility meters operating in freezing winter conditions, this battery is built to survive. It resists internal resistance spikes and prevents chemical crystallization, maintaining a stable 3V discharge curve across extreme temperature spectrums.
Core Application Ecosystems
PC, Notebooks (NB), & Enterprise Computing
As the global standard for motherboard power, the Omnergy CR2032 serves as the ultimate CMOS/RTC battery. It safeguards vital system BIOS configurations, secure boot parameters, and hardware time synchronization during primary power outages or battery swaps in servers, laptops, and desktop PCs.
FinTech & Smart POS Terminals
Electronic point-of-sale systems require uninterrupted micro-currents to preserve volatile RAM and sensitive encryption keys. The CR2032 powers the anti-tamper security loops, instantly wiping cryptographic data if unauthorized physical access is detected.
Industrial Control Systems & Instrumentation
Electronic Writing Boards & Consumer Tech
The ultra-flat voltage curve of the CR2032 is the perfect driver for LCD electronic writing boards and e-ink tablets. It provides thousands of instantaneous, high-pulse screen clearance cycles, ensuring a long and reliable lifespan for educational and professional writing peripherals.
Omnergy Manufacturing Excellence & R&D
Laboratory-Tested Reliability: Omnergy’s commitment to quality is backed by advanced R&D laboratories equipped with CT non-destructive testing equipment. We don’t just build batteries; we see inside them to guarantee structural perfection and zero-leakage safety.
Frequently Asked Questions
Why choose the Omnergy CR2032 for motherboard CMOS applications?
A PC motherboard can easily exceed ambient temperatures of 50°C to 60°C during heavy processing. The Omnergy CR2032 is rated for continuous operation up to 70°C. Its heat-resistant seal and highly stable LiMnO2 chemistry prevent swelling and leakage, ensuring the motherboard remains undamaged for the entire lifecycle of the computer.
How does the <2% self-discharge rate benefit electronic writing boards (LCD tablets)?
Electronic writing boards draw almost zero power while an image is displayed; they only draw a pulse of current to clear the screen. Because the Omnergy CR2032 loses less than 2% of its 220mAh capacity per year to self-discharge, nearly all of its energy is conserved for those screen-clearing pulses, allowing a single battery to last for tens of thousands of erasures over many years.
Can Omnergy provide custom packaging for automated assembly lines?
Yes. We specialize in B2B supply chains. Our CR2032 batteries can be shipped in specialized anti-static blister trays designed specifically for seamless integration into your high-speed SMT pick-and-place manufacturing lines.
Power Your Next Generation of Hardware
Do not let a generic power source compromise your high-end electronics. Partner with Omnergy for factory-direct reliability, advanced R&D transparency, and aggressive B2B wholesale pricing.
[Contact the Omnergy Engineering Team for Technical Datasheets & Free Samples]
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