INDUSTRY COMPONENT

Backup Battery

Backup battery for real-time clock modules providing continuous timekeeping during main power interruptions.

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Component Specifications

Definition
A secondary power source integrated into real-time clock (RTC) modules to maintain accurate timekeeping and preserve volatile memory data when primary system power is unavailable. This component ensures uninterrupted operation of time-sensitive functions in industrial equipment.
Working Principle
The backup battery supplies DC power to the RTC chip and associated memory when main power is disconnected. It utilizes electrochemical cells (typically lithium-based) that provide stable voltage output over extended periods, enabling the RTC to continue tracking time and date without interruption.
Materials
Lithium manganese dioxide (Li-MnO2) or lithium thionyl chloride (Li-SOCl2) chemistry; stainless steel casing; polypropylene or nylon insulation; nickel-plated brass contacts.
Technical Parameters
  • Height 3.2mm
  • Voltage 3.0V
  • Capacity 120mAh
  • Diameter 20mm
  • Terminal Type SMD
  • Self-Discharge Rate <1% per year
  • Operating Temperature -40°C to +85°C
Standards
ISO 9001, IEC 60086-4, UL 1642

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Backup Battery.

RTC backup battery industrial clock battery lithium battery for timekeeping real-time clock power source manufacturing equipment battery Backup Battery Backup Battery in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Real-Time Clock Module

A hardware component that provides precise timekeeping functionality for synchronization systems.

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Engineering Analysis

Risks & Mitigation
  • Battery leakage causing circuit damage
  • Voltage drop below RTC operating threshold
  • Thermal runaway in high-temperature environments
FMEA Triads
Trigger: Extended storage without periodic charging
Failure: Complete battery discharge
Mitigation: Implement scheduled maintenance checks and battery rotation programs
Trigger: Exposure to temperatures beyond specified range
Failure: Reduced battery capacity and premature failure
Mitigation: Install temperature monitoring and environmental controls

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1V voltage stability over full discharge cycle
Test Method
IEC 61960 standard for secondary lithium cells

Buyer Feedback

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Frequently Asked Questions

How long does an RTC backup battery typically last?

Industrial-grade RTC backup batteries typically last 5-10 years depending on environmental conditions and usage patterns, with lithium chemistries offering the longest service life.

Can backup batteries be replaced while equipment is running?

Yes, most industrial RTC modules are designed with hot-swappable battery compartments allowing replacement without interrupting main system operations.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Backside Coating Backup Battery Holder