Power Glory CR2477: The Long-Term Vision Behind a High-Capacity Button Cell Battery

Power Glory CR2477: The Long-Term Vision Behind a High-Capacity Button Cell Battery

Hundreds of meters underground in coal mines, personnel tracking cards must operate 24/7 without interruption; replacing a battery requires halting operations for maintenance and sending personnel underground, which often results in high overall costs; In unmanned communication base stations and remote monitoring sensors, equipment is often deployed year-round on mountaintops, on towers, or inside utility tunnels, where the labor and transportation costs associated with a single battery replacement are high—these scenarios share a common, non-negotiable requirement: maintenance-free operation from the moment of installation, with battery replacements minimized throughout the device’s lifecycle.

 

Power Glory has been deeply involved in the lithium micro-power supply sector for over two decades. Its full CR2477 product line—including the standard type, high-capacity PH type, wide-temperature T type, and low-temperature D type—features a maximum rated capacity of 1,050 mAh, an ultra-low annual self-discharge rate, and stable output across a wide temperature range. Designed for applications with high battery-swap costs, this series provides a fundamental guarantee of cross-cycle power supply for industrial-grade low-power devices.

1. CR2477 Specifications

“CR” stands for the lithium-manganese dioxide chemistry; “24” refers to a diameter of 24.5 mm; and “77” refers to a thickness of 7.7 mm. With metallic lithium as the anode and manganese dioxide as the cathode, and a nominal voltage of 3 V, this specification offers the best balance of thickness and capacity among the standard CR series button cells. The larger cavity accommodates more active material, and the Power Glory CR2477PH high-capacity model boasts a nominal capacity of up to 1,050 mAh.

 

Stable electrical performance that meets the intermittent operating requirements of most low-power industrial devices:

Nominal operating current of 0.6 mA, supporting long-term standby monitoring for sensors;

The standard model has a maximum continuous current of 7 mA and a maximum pulse current of 25 mA; the high-capacity PH model has a maximum continuous current of 8 mA and a maximum pulse current of 28 mA, capable of driving millisecond-level burst loads such as intermittent data uploads and RF transmissions;

Combined with an annual self-discharge rate of less than 2%, the battery can achieve a stable operational lifespan of over 5 years in typical low-power scenarios. (Actual battery life requires a comprehensive assessment based on wake-up frequency, transmission duration, and operating temperature.)

2. Three Core Advantages: Capacity, Self-Discharge Rate, and Temperature Range Adaptability

High Capacity Reduces Battery Replacement Frequency at the Source

The standard CR2477 has a nominal capacity of 1,000 mAh, while the high-capacity PH type reaches 1,050 mAh. This high capacity directly extends the device’s power supply cycle, making it particularly suitable for industrial scenarios with dispersed deployments and high costs associated with manual battery replacement—reducing battery replacement frequency helps minimize downtime losses and on-site operational risks, while also reducing the need for maintenance interventions.

Low Self-Discharge: Empowering Inventory and Supply Chain Management

With an annual self-discharge rate kept below 2% (under standard conditions), this helps minimize capacity loss during long-term storage. For industrial customers and channel distributors who purchase in bulk, this feature helps reduce storage-related losses while allowing for more flexible production and inventory planning cycles.

Wide Temperature Range Model Matrix, Covering -55°C to +85°C

Power Glory CR2477 offers multiple temperature range options: Standard Type (-20°C to +70°C), High-Capacity PH Type (-20°C to +70°C), Wide-Temperature T Type (-40°C to +85°C), Low-Temperature D-Type (-55°C to +60°C), covering a wide temperature range from -55°C to +85°C. These models are suitable for various operating conditions, allowing for flexible selection without the need to modify equipment design.

 

3.CR2477 Full Series Model Specifications

Power Glory relies on its proprietary material formulations and smart manufacturing processes, incorporating a unique sealing structure and leak-proof design. Its products are certified to IATF 16949, ISO 9001/14001/45001/50001, QC080000 (IECQ-HSPM), UL (MH29853), CE, UN38.3, IEC, and RoHS. By minimizing the risk of liquid leakage at the source, these products ensure the safety of industrial equipment motherboards.

4.Typical Applications of the CR2477: From Underground to the Cloud

As the core power source for industrial-grade low-power devices, the CR2477 high-capacity button cell battery—with a nominal capacity of up to 1050 mAh, low self-discharge, and stable output across a wide temperature range—is suitable for demanding environments across multiple industries:

Coal Mine Safety: UWB/RFID location cards for underground personnel, mining sensors

Industrial Internet of Things (IIoT): Active RFID tags, asset management tags

Industrial Control: Industrial weighing instruments, remote control panels, PLC backup power

Automotive Equipment: Vehicle Battery Management System (BMS) backup power

Outdoor Monitoring: Unattended sensors, auxiliary power for communication base stations

Cold-chain logistics: Cold storage trackers, electronic shelf labels (ESL)

With its long battery life, wide temperature range, stable performance, and industrial-grade safety standards, the Power Glory CR2477 series provides long-lasting, worry-free, and cost-effective power solutions for low-power industrial devices in the era of the Internet of Things.