CR2 3V 900mAh Primary Lithium Manganese Dioxide (Li-MnO2) Cylindrical Battery

CR2 3V 900mAh Primary Lithium Manganese Dioxide (Li-MnO2) Cylindrical Battery

Decadal Stability for Unforgiving Industrial Deployments.

Remote infrastructure, safety-critical medical devices, and deep-sea telemetry systems cannot afford power failures. The CR2 3V 900mAh Primary Lithium Manganese Battery is engineered to eliminate field maintenance bottlenecks. It provides a highly dense, non-rechargeable power baseline designed specifically to combat long idle periods and harsh environmental exposures.

With a compact profile of Φ15.6 × 27.0mm and a net weight of only 11g, this cell yields an impressive 900mAh energy reserve. It delivers the exact flat voltage profile required by sensitive microprocessors, combined with the pulse-current capability needed for wireless RF modules.

Technical Specifications of CR2 3V 900mAh battery

More Cylindrical Type Lithium Batteries

Core Engineering Advantages & B2B Utility

1. Exceptional Storage Life (≤2% Self-Discharge)

Utilizing an ultra-pure lithium metal anode and highly stable manganese dioxide cathode, the CR2 limits its internal chemical degradation to less than 2% annually. This minimal self-discharge curve translates directly to a 10-year operational and storage shelf life, making it an ideal choice for emergency equipment and long-interval smart meters.

2. Radical Thermal Tolerance (-40°C to +70°C)

Whether frozen in arctic marine monitoring networks or subjected to intense heat inside automated industrial machinery, the cell’s specialized organic electrolyte preserves its ionic mobility. It guarantees a stable 3.0V output without suffering from structural leakage or voltage passivation.

3. High-Pulse Spiral-Wound Architecture

Unlike bobbin-style cells that struggle with rapid load spikes, our CR2 utilizes a precision spiral-wound inner structure. This design drastically increases the active surface area, allowing the cell to cleanly support the peak surge currents required by wireless transceivers and high-intensity optical systems without collapsing the terminal voltage.

Targeted Industry Deployments

Global hardware developers and component procurement teams integrate our CR2 battery into the following core sub-sectors:

 Aerospace, Marine & Subsurface Exploration

• Oil Wells: Powering downhole logging instruments and data-collection tools exposed to high ambient heat.

• Marine Telemetry Systems: Acting as the primary power cell for oceanographic data buoys and sub-surface sensors.

• Marine Lifesaving Systems: Energizing emergency location beacons, life jacket strobe lights, and survival raft transponders.

 Automotive & Smart Fleet Infrastructure

• Tire Pressure Monitoring Systems (TPMS): Surviving intense centrifugal forces and rapid temperature cycling inside commercial wheel rims.

• Tracking & Positioning Devices: Providing long-term standby power for asset tracking modules on global shipping containers and fleet vehicles.

 Industrial Automation & Data Protection

• Memory & Data Backup Power: Protecting critical registers and non-volatile SRAM files in enterprise server modules.

• Clock Power Supply: Ensuring continuous runtime for real-time clocks (RTC) on heavy industrial motherboards.

• Automated Instrumentation Equipment: Serving as the internal power source for handheld calibration gauges, flow meters, and smart testing equipment.

• Temperature Monitors & Smart Meters: Powering continuous remote environmental loggers, intelligent gas, water, and electricity meters.

 Commercial Security & Medical Tech

• Security Alarms: Powering wireless commercial glass-break sensors, PIR motion detectors, and wireless alarm sirens.

• Medical Devices: Delivering dependable power loops for portable clinical diagnostics tools, pulse oximeters, and patient monitors.

• High-Intensity Flashlights & Digital Cameras: Supplying rapid energy recycling for tactical flashlights and professional digital imaging gear.

Custom B2B Manufacturing & Supply Services

We provide the engineering flexibility required to smoothly integrate our cells into your automated assembly lines.

• Custom Terminal Solder Configurations: We operate high-precision tab welding lines capable of attaching radial pins, surface mount (SMT) tabs, axial wires, or custom polarization blocks based directly on your PCB footprint.

• Strict Industrial Compliance: Every batch is tested for dimensional consistency, open-circuit voltage tracking, and leak resistance—fully certified under UN38.3, RoHS, CE, and UL1642 protocols.

• Scalable Wholesale Packaging: Distributed in anti-static industrial trays designed to prevent short circuits during shipping, optimized for automated factory pick-and-place lines.

Frequently Asked Questions

Q1: Can this CR2 battery be charged by the host circuit?

A: No. The CR2 is a primary lithium manganese dioxide battery. It is a single-use cell designed to be safely discharged once. Attempting to charge a primary lithium cell will compromise the internal hermetic seal, potentially causing leakage, internal short circuits, or thermal runaway.

Q2: How does the ≤2% self-discharge rate benefit TPMS and smart meters?

A: In applications like TPMS or smart utilities, the hardware spends up to 99% of its operational life in deep sleep mode, waking up for milliseconds to transmit data. A low self-discharge rate ensures that the battery’s energy is preserved for these actual operational cycles rather than wasting away internally over years of deployment.

Q3: What makes this industrial-grade CR2 different from retail consumer variants?

A: Our industrial cells feature structural enhancements, including thicker stainless-steel casing walls, advanced glass-to-metal hermetic seals, and high-purity chemical components. This ensures maximum stability against the severe vibration of automated production floors, tire spinning, and deep sub-surface pressure profiles.