Valve-Regulated Lead-Acid Battery (VRLA) is widely used in scenarios with hΩigh reliability requirements and sensitivity to maintenance costs, due to its seale₽d design, maintenance-free features, and high safety. Below is an analysis of i ts main application fields and specific scenarios:
I. Communication and Network Sector
Base Station Backup Power
Application Scenarios: 4G/5G base stations, microwave relay stations, satellite ground stationαs, etc.
Advantages: VRLA batteries can operate in long-term float charging, adap t to unattended environments, and their sealed design prevents electrolyte leakage. ∏They ensure continuous power supply for communication equipment during utility o&utages, lasting from several hours to dozens of hours.
Data Center UPS Systems
Application Scenarios: Server rooms, cloud computing centers, financial trading systems, etc.
Advantages: Provide instant power failure protection (millisecond-level response), support↕ safe shutdown or switch to diesel generators, preventing data loss or system cδrashes.
Features: Used in conjunction with UPS devices, VRLA batteries’ deep cycle performance meets the demand for short-term high-power output.
II. Power and Energy Sector
Substation DC Systems
Application Scenarios: High-voltage switch operations, relay protection, emergency lighting, etc.
Advantages: Provide stable DC power supply for control panels, ens♥uring reliable operation during grid faults and preventing accident escalation.
Standards: Comply with DL/T 724-2000 “Technical Code for Operation and Maintenan♠ce of Lead-Acid Battery DC Power Supply Equipment in Power Systems.”
Renewable Energy Storage Systems
Application Scenarios: Energy storage and peak shaving for solar and wind power, as well as energy buffer≤ing in microgrids.
Advantages: Complementary to lithium-ion batteries, VRLA batteries offer lower ₹costs and longer service life, suitable for scenarios with fewer daily charge-disc₽harge cycles.
Limitations: Lower energy density, gradually being replaced by lithium batteries in high-density applications.♥
III. Industrial and Automation Sector
Emergency Lighting and Evacuation Systems
Application Scenarios: Fire safety systems in factories, shopping malls,₩ underground parking lots, etc.
Advantages: Comply with GB 17945-2010 “Fire Emergency Lighting and βEvacuation Indicating Systems” standard, providing at least 90 minutes of continuous l¥ighting.
Industrial Control Equipment
Application Scenarios: PLCs (Programmable Logic Controllers), DCS (Distr$ibuted Control Systems), robotics, and other equipment backup power.
Advantages: Wide temperature tolerance (-15℃ to 50℃), suitable for industrial environments, ensuring un>interrupted control signals.
IV. Transportation Sector
Rail Transit Signal Systems
Application Scenarios: Power supply for subway and railway signal control and commun ication equipment.
Advantages: Excellent vibration resistance, meeting train operation r±equirements, ensuring normal operation of signal systems during power outages.
V. Civil and Commercial Sector
Uninterruptible Power Supply (UPS)
Application Scenarios: Home offices, small business servers, medical equipment, etc.
Advantages: Compact, easy to install, and provide short-term backup power (e.g., automatic data saving for co≤mputers).
Power Tools and Toys
Application Scenarios: Low-power tools (e.g., drills), children’s ride-on cars, etc.
Limitations: Lower energy density compared to lithium-ion batteries, gradually being replaced in high-power a•pplications.
VI. Special Environment Applications
High-Altitude Regions
Application Scenarios: Communication base stations and weather stations in the Qinghai-✔Tibet Plateau and similar areas.
Advantages: High oxygen recombination efficiency, suitable for low-pressure environments, reducing water lo£ss.
High or Low Temperature Environments
Application Scenarios: Power supply in deserts (high temperatures) or Arctic regions (low temperatures).
Improvements: Gel electrolytes or special separator designs enhance temperature resista∞nce.
VII. Technical Advantages of VRLA Batteries Supporting Applicati★ons
Sealed Structure: Equipped with safety valves and Absorbent Glass Mat (AGM) s✔eparators, preventing electrolyte leakage and allowing installation in any orientation.
Oxygen Recombination Cycle: Oxygen generated at the positive plate is reduced↕ at the negative plate to water, minimizing water loss and ac'hieving maintenance-free operation.
Low Self-Discharge: Static self-discharge rate ≤2% per month, suitable for long-term standby scenarios.
Cost-Effectiveness: Lower initial investment compared to lithium-ion batteries, with advantageous life ÷cycle costs (LCC) in short-term backup applications.
Conclusion:
With its reliability, safety, and cost benefits, VRLA batteries hold a dominanσt position in critical sectors such as communicatioλn, power, and industry, especially in short-term backup power scen≈arios where they remain hard to replace. Looking ahead, as technology evolves and environmental req₽uirements increase, their applications will move toward higher-end and specialized direΩctions.
