Naradex Battery

Deep Cycle Tubular Flooded Battery Factory

OPzV Battery
Manufacturer20+ Year Design Life

Naradex manufactures OPzV tubular flooded batteries with 2,000+ cycles at 80% DOD,-40 to 60°C operating range, and20+ year design floating life. Built for telecom, solar, and utility applications.

  • 2V: 100Ah to 3,000Ah | 12V: 100Ah to 200Ah
  • Tubular positive plates + fumed silica liquid (flooded) electrolyte
  • OEM / Private Label — your brand, our factory
Request OPzV QuoteView OPzV Catalog
20+
Year Design Life
2,000+
Cycles at 80% DOD
3,300+
Cycles at 50% DOD
-40~60°C
Operating Range
100+
Export Countries
400+
Employees

Why OPzV Tubular Gel Technology

OPzS batteries combine tubular positive plates with fumed silica liquid (flooded) electrolyte for superior deep cycle performance and ultra-long service life. Learn more in our VRLA technology guide.

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Tubular Positive Plates

Pb-Ca-Sn alloy tubular plates with high corrosion resistance deliver 2,000+ cycles at 80% DOD and 20+ year float life. Far superior to flat-plate designs.

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Fumed Silica Gel Electrolyte

Thixotropic gel prevents acid stratification and electrolyte leakage. Micro-cracks provide gas transport pathways for efficient oxygen recombination.

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20+ Year Design Life

Optimized grid alloy and gel formulation deliver more than 20 years of service in float applications at 25°C. Designed for install-and-forget reliability.

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-40°C to 60°C Range

Gel electrolyte maintains ionic conductivity across extreme temperatures. Ideal for outdoor telecom cabinets and harsh environment installations.

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Zero Maintenance

Fully sealed valve-regulated design eliminates water refilling. No acid fumes, no corrosive gas emission. Flame-retardant container options available.

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Deep Discharge Recovery

Excellent recovery from deep discharge events. Even after accidental 100% DOD, OPzV cells recover capacity better than AGM alternatives.

OPzV vs AGM vs OPzS: Performance Comparison

Why system integrators and telecom operators choose OPzV for mission-critical deep cycle applications.

ParameterOPzV (Tubular Gel)AGM (Flat Plate)OPzS (Flooded)
Design Life (Float)20+ years10-15 years20+ years
Cycles at 80% DOD2,000+200-5001,500-2,000
Cycles at 50% DOD3,300+500-1,2002,500-3,000
Temperature Range-40 to 60°C-20 to 50°C-10 to 45°C
MaintenanceZeroZeroWater refill every 3-6 months
Self-Discharge<3% / month<3% / month5-15% / month
Acid StratificationNone (gel)PossibleCommon
InstallationAny orientationUpright onlyUpright only
Best ForTelecom, solar, utilityUPS, emergency backupUtility (with maintenance staff)

OPzV Battery Applications

Designed for applications that demand deep cycling, extreme temperatures, and decades of reliable service.

Telecom & BTS

48V battery banks for cellular towers, remote base stations, and communication infrastructure. Zero maintenance in outdoor cabinets.

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Solar Energy Storage

Daily deep cycle charging and discharging for off-grid, hybrid, and utility-scale solar installations. 3,300+ cycles at 50% DOD.

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Power Utility

Substation DC systems, switchgear control, and grid-scale energy storage. 20+ year float life for install-and-forget reliability.

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Railway & Transit

Station signaling, control systems, and emergency backup for railway, metro, and transportation infrastructure.

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OPzV Product Range

2V cells from 100Ah to 3,000Ah and 12V batteries from 100Ah to 200Ah. All models available for OEM branding.

2 OPzV 100
2V 100Ah
Small telecom, security
2 OPzV 200
2V 200Ah
Telecom BTS 48V
6 OPzV 600
2V 600Ah
Solar storage, utility
12 OPzV 1200
2V 1200Ah
Grid-scale, data center
16 OPzV 2000
2V 2000Ah
Large-scale utility
24 OPzV 3000
2V 3000Ah
Power station, railway
OPzV 12-100
12V 100Ah
Compact telecom, solar
OPzV 12-200
12V 200Ah
Medium solar, UPS
View Full OPzV Product Catalog with Specifications →

OPzV Battery Factory

Our 20,000 m² factory in Foshan, Guangdong Province has been manufacturing VRLA batteries since 2006. With 400+ employees and dedicated OPzV production lines, we deliver consistent quality backed by ISO 9001/14001/45001 certified management systems.

Tubular positive plate casting — Pb-Ca-Sn die-cast grids for corrosion resistance
Fumed silica gel mixing — precision electrolyte preparation for uniform performance
Formation charging — per-cell voltage monitoring for optimal initial capacity
IQC + PQC + OQC — three-layer quality control at every production stage
CE, ISO 9001/14001/45001 certified — full international compliance
Tour Our Factory →
OPzS battery production lineBattery manufacturing workshopFormation charging roomBattery warehouse ready for shipping

How to Order OPzV Batteries

Simple process from inquiry to delivery. We respond within 12 hours.

01

Send Inquiry

Tell us your OPzV model, capacity, quantity, and any OEM requirements.

02

Get Quote

FOB pricing with full datasheets within 12 hours.

03

Production

IQC + PQC + OQC quality control. Sample available.

04

Shipping

Stock: 7 days. Full container: 30 days. MSDS certified.

OPzS Battery Resources

AGM vs Flooded Battery: Engineering Comparison

Sealed vs open-cell for industrial use

VRLA Battery Technology Guide

AGM, gel, and flooded battery technology

VRLA Battery Maintenance: 7 Steps

Maintenance best practices for all battery types

OPzV Battery Manufacturer

Maintenance-free tubular gel alternative

2V Battery Manufacturer

AGM, gel & OPzS from one factory

AGM Battery Manufacturer

Sealed AGM for zero maintenance

OPzV Battery — Frequently Asked Questions

What is an OPzS battery?
OPzS stands for Ortsfest (stationary) PanZerplatte (tubular plate) Spezial (special). It is a flooded tubular plate lead-acid battery with liquid electrolyte. OPzS batteries are the industry standard for large-scale stationary energy storage, offering 20+ year design life and 1,500+ cycles at 80% DOD. OPzS batteries offer 20+ year design life, 2,000+ cycles at 80% DOD, and are completely low-maintenance (periodic water top-up). They are the premium choice for telecom, solar energy storage, and utility backup power.
What is the difference between OPzV and OPzS batteries?
OPzS batteries use liquid (flooded) electrolyte and are sealed (low-maintenance (periodic water top-up)), while OPzS batteries use liquid electrolyte and require periodic water refilling. OPzV offers better deep cycle performance (2,000+ cycles at 80% DOD vs 1,500 for OPzS), wider temperature range (-40 to 60 degrees C), and periodic water refilling required. OPzS has slightly lower initial cost but higher total cost of ownership due to maintenance requirements.
What is the MOQ for OPzS batteries?
For standard Naradex-branded OPzS batteries, we accept small quantity orders for evaluation. For OEM orders with custom branding, the minimum order is one 20ft container. We offer flexible MOQ for first-time buyers to test our products before committing to bulk orders.
What capacities are available for OPzS batteries?
Our OPzV range covers 2V cells from 100Ah to 3,000Ah, and 12V batteries from 100Ah to 200Ah. Common configurations include 2V 200Ah, 2V 500Ah, 2V 800Ah, 2V 1000Ah, and 2V 1500Ah for 48V telecom systems and large-scale energy storage. Custom capacity ranges are available for OEM orders.
How long do OPzS batteries last?
OPzS batteries have a design floating life of 20+ years at 25 degrees C. In cycling applications: 80% DOD gives 2,000+ cycles, 50% DOD gives 3,300+ cycles. Real-world telecom installations typically achieve 15-18 years. Solar energy storage systems with daily cycling typically achieve 8-12 years depending on discharge depth and temperature conditions.
Can OPzS batteries work in extreme temperatures?
Yes. Naradex OPzS batteries operate from -40 degrees C to 60 degrees C. The liquid (flooded) electrolyte prevents acid stratification and freezing at low temperatures, while the tubular plate design handles high-temperature stress better than flat-plate designs. This makes OPzV ideal for outdoor telecom cabinets, tropical solar installations, and desert environments.

Get OPzV Battery Factory Pricing

Whether you need standard OPzS batteries or custom OEM solutions, our team is ready. CE & ISO certified, exported to 100+ countries.

We reply to all inquiries within 12 hours. Sample orders accepted.

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