Li/CFx Button Battery BR2354 3V 420mAh Lithium Coin Cell
- Omnergy
- China
- 15 days
- 750 million per year
Maximize uptime with the Omnergy BR2354 3V 420mAh Lithium Carbon Monofluoride battery. Withstands -40°C to +85°C. The ultimate power for POS, servers & security.
BR2354 3V 420mAh Lithium Coin Cell: The Ultra-Capacity Powerhouse for Industrial Electronics

When your hardware design demands the absolute maximum energy reserve available in a coin cell footprint, the Omnergy BR2354 3V Lithium Carbon Monofluoride (Li-CFx) Battery answers the call.
By leveraging a 5.4mm thickness, we have engineered an astonishing 420mAh capacity into this micro-battery. Designed specifically for high-stakes, heavy-drain B2B applications, the BR2354 is the definitive "install-and-forget" solution. It ensures that critical systems, from enterprise servers to remote security grids, remain powered for decades without the need for costly field maintenance.
Technical Parameters of Li/CFx Button Battery BR2354
| Product Name | BR2354 lithium button cell |
| Nominal Discharge current | 0.4mA |
Nominal Voltage | 3V |
| Nominal Capacity | 420(mAh) |
| Continuous Current(Max) | 4mA |
| Maximum pulse current | 10mA |
| Operating temperature | -40℃~85℃ |
| Weight | 6(g) |
| UL Recognition | MH29853 |
| Storage temperature range | 0℃-30℃ |
| Storage humidity range | 35%~75% |
Full BR Lithium Coin Cells
| Model | Nominal Voltage(V) | Nominal Current (mA) | Nominal Capacity (mAh) | Maximum Continuous Current (mA) | Maximum Pluse Current (mA) | Max Dimension (mm) | Working temperature(℃) | Weight(g) |
| BR1225 | 3 | 0.1 | 45 | 1 | 3 | φ12.5×2.5 | -40~+85 | 0.8 |
| BR1632 | 3 | 0.2 | 120 | 2 | 5 | φ16.0×3.2 | -40~+85 | 1.8 |
| BR2016 | 3 | 0.1 | 70 | 2 | 5 | φ20.0×1.6 | -40~+85 | 1.8 |
| BR2025 | 3 | 0.2 | 130 | 3 | 6 | φ20.0×2.5 | -40~+85 | 2.5 |
| BR2032 | 3 | 0.2 | 200 | 3 | 6 | φ20.0×3.2 | -40~+85 | 3 |
| BR2325 | 3 | 0.2 | 170 | 4 | 10 | φ23.0×2.5 | -40~+85 | 3.2 |
| BR2330 | 3 | 0.2 | 240 | 4 | 10 | φ23.0×3.0 | -40~+85 | 3.5 |
| BR2335 | 3 | 0.2 | 280 | 4 | 10 | φ23.0×3.5 | -40~+85 | 4.3 |
| BR2354 | 3 | 0.4 | 420 | 4 | 10 | φ23.0×5.4 | -40~+85 | 6 |
| BR2430 | 3 | 0.2 | 230 | 5 | 15 | φ24.5×3.0 | -40~+85 | 4.2 |
| BR2450 | 3 | 0.4 | 550 | 5 | 15 | φ24.5×5.0 | -40~+85 | 6 |
| BR2477 | 3 | 0.6 | 900 | 5 | 15 | φ24.5×7.7 | -40~+85 | 9.6 |
| BR3032 | 3 | 0.4 | 500 | 8 | 20 | φ30.0×3.2 | -40~+85 | 5.5 |
Core Advantages: Breaking the Capacity Ceiling
1. Unrivaled Energy Density (420mAh)
The BR2354 offers nearly double the capacity of standard 3V coin cells. This massive 420mAh reserve provides an incredibly long runway for standby power, making it the perfect choice for high-drain RTCs (Real-Time Clocks) and systems requiring extended autonomous operation.
2. Extreme Thermal Resilience (-40°C to +85°C)
Industrial environments are unforgiving. Standard batteries degrade or leak when pushed to their limits, but our advanced Li-CFx chemistry thrives. The BR2354 delivers rock-solid voltage stability whether subjected to freezing -40°C conditions or the +85°C ambient heat of an overworked server room.
3. Multi-Decade Shelf Life (<2% Annual Self-Discharge)
A massive capacity means nothing if the battery drains itself. Engineered for supreme longevity, the BR2354 features an ultra-low self-discharge rate of under 2% per year. Your devices can remain in inventory or standby mode for over 10 years, ready to deliver critical backup power the second the main grid fails.

Target Applications: Fueling Mission-Critical Infrastructure
The sheer 420mAh dominance of the BR2354 makes it the heavy-duty backbone for commercial electronics:
Enterprise Servers & IT Infrastructure: The ultimate high-capacity CMOS and RTC backup, guaranteeing that complex system clocks and RAID configurations survive catastrophic, prolonged power outages.
Point of Sale (POS) Terminals: Secures sensitive financial data, cryptographic keys, and transaction logs in smart registers and ATMs where memory loss equals financial liability.
Commercial Security & Alarm Systems: Provides relentless, multi-year power for demanding access control boards, electronic smart locks, and remote perimeter sensors.
Industrial IoT & Smart Meters: The premier power source for rugged utility meters and remote telemetry devices requiring uninterrupted, maintenance-free operation in the field.

Engineering Insight: Maximizing the Z-Axis
Why design around the BR2354 over a standard 2032 or 2330?
It is an engineering calculation of Space vs. Longevity. By allowing for a 5.4mm Z-axis clearance on your PCB, you unlock a staggering 420mAh capacity—drastically reducing the Total Cost of Ownership (TCO) by eliminating replacement cycles.
Furthermore, utilizing the BR-series (Li-CFx) chemistry over standard CR (Lithium Manganese Dioxide) cells provides a perfectly flat 3.0V discharge profile. This prevents the gradual voltage drop seen in CR cells, ensuring that sensitive microprocessors never experience low-voltage brownouts, even at the very end of the battery's life or in 85°C heat.

Source Factory Superiority: Scale, Quality, and Customization
Recognized as a "Little Giant" and "Invisible Champion" in the lithium micro-power sector, our manufacturing infrastructure is built for enterprise scale. Operating under strict IATF16949 automotive-grade quality standards, our highly automated production lines boast a monthly capacity of over 66 million units.
Whether you require bulk standard BR2354 cells or custom battery packs featuring precision-welded pins, solder tabs, or wire connectors, we deliver uncompromising consistency from prototype to mass production.








