IEC 60896-21 Certified

Powering Tomorrow With Intelligent Battery Solutions

Cumulus Energy delivers a Complete range of Premium Sealed Maintenance Free Valve Regulated Lead Acid Batteries (SMF VRLA) engineered for UPS, telecom, renewable systems, critical backup power and general purpose

98%
Reliability Rate
10yr
Design Life
0
Maintenance Required
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Built for Mission-
Critical Performance

Every Cumulus Energy® SMF VRLA battery undergoes rigorous testing and quality control. Our sealed maintenance free AGM technology ensures zero downtime, zero maintenance — engineered for the most demanding UPS, fire alarm, emergency lighting and industrial environments.

Sealed Maintenance Free VRLA

Valve Regulated Lead Acid (VRLA) technology with AGM separators. Non-spillable, sealed construction — no electrolyte topping, no maintenance, ever. Ideal for UPS and standby applications.

SMF VRLA

High Power UPS Output

Low internal resistance and highly optimised grids deliver high power output with minimal float current. Ideal for UPS, inverters and emergency power backup applications requiring peak reliability.

High Performance

UL-94-V0 Flame Retardant

UL-94-V0 flame retardant ABS container available. Built-in venting system for low internal pressure ensures safe operation in enclosed fire alarm panels and emergency lighting systems.

Safety Certified

Low Self-Discharge Rate

Advanced gas recombination system and vented catalyst reduce self-discharge and float current significantly, extending standby service life far beyond conventional lead-acid batteries.

Long Standby Life

Design Features

Specializaed Pure Lead

TPPL Design for deep-cycle and advanced grid design to deliver maximum power , exceptional reliability and extended life

Industrial Grade

IEC & Global Compliance

UL    UL  UL  UL
Compliant with EUROBAT, RoHS, WEEE, REACH standards. Manufactured to IEC 60896-21/22 and IEC 61427-1:2013 — accepted globally across commercial and industrial projects worldwide.

IEC Certified & UL Approved

Leaders in SMF VRLA Battery Manufacturing

Cumulus Energy® one of the Fastest growing names in SMF VRLA Batteries, Solar Batteries & UPS Systems across global markets.

Since inception, we have been committed to continuous improvement and technological up-gradation in sealed maintenance free battery manufacturing. Our advanced production is supported by a well-equipped R&D laboratory, highly qualified technical staff, and internationally prescribed quality control procedures.

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Cumulus Energy® SMF VRLA battery manufacturing and engineering facility

Where Our VRLA Batteries
Power the World

From mission-critical data centres to life-safety fire alarm systems — Cumulus Energy® SMF VRLA batteries are the trusted backup power behind infrastructure that cannot afford to fail.

UPS system batteries for data center and server room backup power

UPS System Batteries

Sealed VRLA batteries for uninterruptible power supply (UPS), ensuring continuous backup power to critical IT, telecom, and industrial infrastructure.

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Fire alarm panel batteries – UL-94-V0 flame retardant VRLA backup power

Fire Alarm Panel Batteries

Flame-retardant UL-94-V0 rated SMF VRLA batteries certified for fire alarm and life-safety systems where backup power reliability is non-negotiable.

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Emergency exit lighting batteries – long standby SMF VRLA backup power

Emergency Lighting Batteries

Long standby life SMF VRLA batteries ensuring emergency lighting and exit signs remain powered during mains failure when it matters most.

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Elevator ARD automatic rescue device batteries – VRLA deep cycle power

Elevator ARD Batteries

Heavy-duty, deep-cycle VRLA batteries providing reliable ARD (automatic rescue device) backup power for elevator safety systems.

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Building management system BMS battery backup – CCTV access control HVAC

Dependable Telecom Backup Power

Designed for dependable telecom backup power, VRLA batteries deliver long-lasting performance, maintenance-free operation, high reliability, and consistent power.

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Commercial truck and heavy equipment solar batteries – high cranking power

Solar Batteries by Cumulus Energy

Cumulus Energy Solar Batteries deliver dependable energy storage, long backup performance, maintenance-free operation, and reliable power for solar applications.

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SMF VRLA Technology That Delivers
Zero Downtime

Our sealed maintenance free VRLA batteries combine advanced AGM separator technology. Every unit passes rigorous multi-stage quality testing before dispatch.

Design Features

  • Stable quality & high reliability VRLA
  • Long service life AGM design
  • Sealed maintenance-free operation
  • Heavy-duty calcium alloy grids
  • Flame retardant ABS (UL-94-V0)

Technical Features

  • Non-spillable sealed VRLA build
  • AGM & ABS gas combination
  • Low internal pressure venting
  • Very low self-discharge rate
  • 99.99% Purest Virgin Lead Used
  • Exceptional Reliability & Longevity
Compliance & Quality Standards
EUROBAT, RoHS, WEEE, REACH
IEC 60896-21 — VRLA Stationary
IEC 60896-22 — Valve Regulated
IEC 61427-1:2013 — Energy Storage
100% factory tested before dispatch
Advanced machinery quality control
R&D wing with expert engineers
ISO Certified
CE Certified
Cumulus Energy® SMF VRLA Sealed Maintenance Free Battery – IEC 60896 Certified
10+yr
Design Life
98%
Efficiency
0%
Maintenance
0
Systems Powered Worldwide
0
VRLA Battery Efficiency Rating
0
SMF VRLA Design Life
0%
Maintenance Required

Vision, Mission & Our Goal

🎯 Vision

To become one of the most respected global SMF VRLA battery brands — transcending conventional industry norms and setting new benchmarks for excellence in backup power solutions.

🚀 Mission

Our mission is to deliver world-class SMF VRLA battery products that provide exceptional value. Through continuous innovation and unwavering commitment to quality, we strive to exceed customer expectations — offering reliable backup power solutions at competitive prices, supported by outstanding after-sales service.

🏆 Our Goal

Customer satisfaction is our highest priority. Driven by a passionate, work-oriented team, we continuously strive for improvement as we advance toward our vision of becoming a successful and trusted global VRLA battery manufacturer.

Frequently Asked Questions

What is a SMF VRLA battery and how does it work?

SMF (Sealed Maintenance Free) and VRLA (Valve Regulated Lead Acid) refer to batteries that are sealed — requiring no water topping, no electrolyte maintenance, and no venting unlike traditional flooded lead-acid batteries. Cumulus Energy® VRLA batteries use an internal pressure relief valve and AGM technology for maximum safety and long standby life.

Which applications can Cumulus Energy® VRLA batteries power?

Cumulus Energy® SMF VRLA batteries are suitable for UPS systems, Emergency Lighting, Fire Alarm Panels, Elevator ARD systems, Building Management Systems (BMS), CCTV, Access Control, and Solar (Commercial Vehicles & Heavy Equipment).

Are Cumulus Energy® batteries truly maintenance free?

Yes. Our SMF VRLA batteries use sealed AGM technology with a gas recombination system that virtually eliminates water loss. No electrolyte topping, no equalisation charging, and no scheduled maintenance is required throughout their service life.

What compliance standards do Cumulus Energy® batteries meet?

Our batteries comply with EUROBAT, RoHS, WEEE, REACH directives, and are manufactured to IEC 60896-21, IEC 60896-22, and IEC 61427-1:2013 standards. Flame retardant containers meeting UL-94-V0 are also available for fire alarm and safety applications.

How long do Cumulus Energy® VRLA batteries last?

Cumulus Energy® SMF VRLA batteries are engineered with heavy-duty, highly optimised calcium alloy grids and advanced AGM separators for maximum product life. Design life varies by model, with standby service designs typically rated for 5–12+ years.

How can I contact Cumulus Energy® for battery solutions?

You can reach us at info@cumulus.energy. Our team is ready to recommend the right SMF VRLA battery solution for your UPS, emergency lighting, fire safety, elevator ARD, or BMS application.

Great VRLA Battery Solutions for Your Energy Needs

Looking for UPS backup power, fire alarm batteries, emergency lighting or elevator ARD solutions? Reach out to Cumulus Energy® today. We recommend the right SMF VRLA battery for your application — cost-effective, reliable, and maintenance-free.