CR1220 3V 38mAh Lithium Coin Cell
- Omnergy
- Yichang
- 7 days
- 750 million per year
Premium CR1220 3V 38mAh Li-MnO2 coin cell battery. High performance from -20°C to 70°C. Engineered for NB, POS terminals, security systems, and smart locks. Bulk quotes available.
CR1220 3V 38mAh Lithium Coin Cell | Industrial-Grade Power for POS, Telecom, Security, & Smart Locks
In the interconnected ecosystem of commercial IoT, enterprise security, and smart retail, data continuity is everything. The CR1220 3V 38mAh Lithium Manganese Dioxide ($Li-MnO_2$) Coin Cell Battery is engineered to be the rock-solid hardware anchor for devices that cannot afford to lose power, lose time, or lose memory.
With a precise form factor of Φ12.5 × 2.0mm, this high-density micro-power source delivers a substantial 38mAh capacity, providing long-term voltage stability to high-drain standby systems and complex logic boards.
Technical Specifications of CR1220 3V 38mAh Lithium Coin Cells
| Technical Parameter | Specification |
| Battery Model | CR1220 |
| Chemical System | Lithium Manganese Dioxide (Li−MnO2) |
| Nominal Voltage | 3.0V |
| Nominal Capacity | 38mAh |
| Dimensions | Diameter: 12.5mm | Height: 2.0mm (12.5 *2.0mm) |
| Standard Weight | 0.8g |
| Operating Temperature | -20°C to +70°C |
| Self-Discharge Rate | <2% per year (at room temperature) |
Size of CR1220 3V 38mAh Lithium Battery
Characteristics of 3V 38mAh coin cell
More Products of 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 | 2 | 6 | 20 | Φ23.0X2.0 | 3 |
| CR2325 | 3 | 190 | 2 | 6 | 20 | Φ23.0X2.5 | 3.3 |
| CR2330 | 3 | 260 | 2 | 6 | 20 | Φ23.0X3.0 | 4 |
| CR2335 | 3 | 300 | 2 | 6 | 20 | Φ23.0X3.5 | 4.3 |
| CR2354 | 3 | 560 | 0.4 | 6 | 20 | 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 |
Engineering Breakthroughs: Why Design with Our CR1220?
1. High-Density 38mAh Capacity in a Compact Frame
By optimizing the internal cathode-anode ratio and utilizing ultra-pure manganese dioxide, our CR1220 achieves a true 38mAh capacity. This provides up to 15-20% longer operational life than standard commercial coin cells under equivalent low-current pulses.
2. -20°C to 70°C Weather-Proof Operation
From unheated outdoor commercial security gates in winter to blistering hot telecom enclosures in mid-summer, this battery maintains a flat, dependable 3V discharge profile. Its optimized electrolyte prevents thermal contraction and volatile expansion.
3. Anti-Corrosion & Anti-Leakage Shielding
Designed for enterprise hardware, our CR1220 features a heavy-duty casing and a proprietary heat-resistant leakage-proof seal. It guarantees that valuable circuitry is safe from corrosive acid leaks over its entire 10-year shelf life.
Strategic Application Landscapes
Smart Retail & Fintech
Modern POS machines process sensitive encryption keys and financial transactions. Our CR1220 serves as the critical anti-tamper and SRAM memory backup battery, keeping security logs intact even when the main machine is powered down or unplugged.
Commercial Security & Smart Locks
Electronic locking systems require sudden bursts of power to actuate or transmit wireless credentials (BLE/Zigbee).
Smart Door Locks: Provides uninterrupted backup power for biometrics and keyless entry systems.
Security Arrays: Powers wireless motion detectors, glass-break sensors, and commercial alarm control panels.
Network Architecture & Industrial Control
In data infrastructure, a single minute of desynchronization can crash networks.
Notebooks (NB) & Servers: Acts as the reliable CMOS/RTC battery to maintain system time and BIOS settings.
Telecom Hubs: Powers internal diagnostic tracking chips in routing hardware.
Industrial Automation: Ensures continuous operation of Real-Time Clocks (RTC) in PLCs and factory floor controllers.
B2B Customization & Manufacturing Capabilities
Global Regulatory Compliance: Every CR1220 batch is manufactured under strict ISO9001 and ISO14001 quality systems. We provide fully certified products conforming to UL1642, CE, RoHS, REACH, and UN38.3 regulations, ensuring safe global logistics and trouble-free integration into your products.
Custom SMT & DIP Tabs: We offer professional spot-welding services for horizontal pins, vertical pins, or custom wire leads to match your precise PCB architecture.
Automated Tray Packaging: Supplied in industrial anti-static tray packaging, optimized for seamless integration into high-speed automated pick-and-place manufacturing lines.
Frequently Asked Questions
What are the exact dimensions of a CR1220 battery?
The standard dimensions of a CR1220 battery are 12.5mm in diameter and 2.0mm in thickness (12.5*2.0mm). It is slightly larger in thickness than the CR1216, allowing for an increased capacity of 38mAh.
Can this CR1220 battery be used as an anti-tamper power source in POS terminals?
Yes, absolutely. Because of its premium voltage stability and high-purity LiMnO2 chemistry, it is the ideal energy choice for maintaining the volatile cryptographic memory in POS terminals, triggering security protocols if the main power is manipulated.
How does the low self-discharge rate benefit smart locks?
Smart locks can sit in inventory or on a showroom floor for months before installation. With a self-discharge rate of less than 2% per year, our CR1220 retains nearly 100% of its 38mAh capacity by the time the consumer initiates the device, guaranteeing a premium end-user experience.
Partner with a Leading Global Battery Manufacturer
Accelerate your product development with a reliable, factory-direct supply of premium CR1220 batteries. Contact our engineering consultancy team today to receive comprehensive step-by-step technical datasheets, custom engineering drawings, and bulk pricing tiers.
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