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Backup Battery Component – Computer, Electronic and Optical Product Manufacturing

Q: 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.

Q: 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.

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.

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.

View Product Details

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

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Memory module for Industrial IoT Gateway data storage and processing

Storage Module

Industrial-grade storage module for data logging and firmware in IoT gateways

Ethernet Controller

Industrial Ethernet controller for real-time data transmission in Industrial IoT Gateways.

Serial Interface

Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.

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.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Backup Battery