Chisen OPzS2-200- Comprehensive Analysis of the Tubular Flooded Battery

Chisen OPzS2-200: Comprehensive Analysis of the Tubular Flooded Battery

Chisen OPzS2-200 is a 2V 200Ah tubular flooded lead-acid battery (dimensions 103×206×354 mm, weight 12.9 kg) with a design float life of 20+ years, designed for backup power for small and medium applications. The OPzS2 series belongs to the vented tubular flooded lead-acid family, featuring tubular positive plates and transparent containers, in line with the classic European OPzS technology. (Source: Chisen OPzV/OPzS specification table)

1. Product Overview

The number "200" in OPzS2-200 denotes the rated capacity (C10 discharge rate) in ampere-hours (Ah). As a member of the Chisen tubular flooded battery series, it retains the same tubular grid process and reliability standards while covering backup power for small and medium applications applications with 200Ah, balancing performance and cost.

Key specifications:

Model	OPzS2-200
Rated Voltage	2V
Rated Capacity (C10)	200Ah
Dimensions L×W×H (mm)	103×206×354
Total Height (mm)	409
Battery Weight (kg)	12.9
Terminal Type	Φ20-M8 female thread

2. Technical Principles

The OPzS2 follows the internationally mainstream OPzS technology: positive plates are tubular grids cast from low-antimony alloy, negative plates use lead-calcium alloy, and the electrolyte is high-purity, low-density dilute sulfuric acid (flooded). The tubular positive plates wrap the active material inside corrosion-resistant tubes, delivering long life and excellent cycling performance; the transparent container makes electrolyte level and plate condition clearly visible, facilitating regular water refills and maintenance — a classic, economical solution for medium and large DC backup power.

3. Applications

Thanks to its 20+ year float life and excellent deep-discharge capability, the Chisen OPzS2-200 is mainly suitable for the following backup power for small and medium applications applications:

Small and medium UPS / EPS systems

Emergency lighting and security backup power

Telecom access points and small base stations

Small off-grid solar / wind systems

In these scenarios, when the mains power is interrupted or fluctuates, the OPzS2-200 quickly takes on the backup/energy storage role, keeping critical equipment powered.

4. Performance Advantages

Design float life of 20+ years, in compliance with IEC 60896-11 and DIN 40736

Low-antimony positive + lead-calcium negative, low self-discharge and long maintenance intervals

High thermal capacity, no thermal runaway risk, high safety

Transparent container, visible electrolyte level and condition, intuitive maintenance

Tubular positive plates, long cycle life, deep-discharge resistant

Integrated explosion-proof safety valve; optional catalyst plug further reduces hydrogen/oxygen recombination loss

The 200Ah capacity, combined with its backup power for small and medium applications positioning, strikes a good balance between backup duration and budget.

5. Usage & Maintenance

OPzS2 is a flooded battery. Check the electrolyte level and density periodically as per the manual, add deionized water as needed, and keep the battery room well ventilated. The transparent container makes inspection easy; with correct charging parameters, its 20+ year design life can be fully utilized.

Reference charging parameters: float voltage 2.23V (25℃), temperature compensation -3mV/℃, equalize voltage 2.35V, cycle charging 2.40–2.45V, max charging current 0.20C10A. Use a charger that meets the specification and avoid overcharging or undercharging.

6. Selection Advice & Market Outlook

As demand for reliable backup power in telecom, power and data center infrastructure keeps growing, the value of long-life tubular batteries is increasingly evident. The OPzS2-200, as a 200Ah model in the Chisen series, is well suited as a standard option or upgrade for backup power for small and medium applications. When replacing existing batteries or planning new projects, please provide the system voltage and backup duration so the Chisen engineering team can prepare a configuration and total cost of ownership (TCO) proposal.

【Cooperation & Inquiries】

For the full datasheet, technical parameters and performance test report of the Chisen tubular flooded battery OPzS2-200, or to apply for a paid sample, please feel free to contact the Chisen battery sales department.

Global contact: 📱 Phone / WhatsApp: +86 131 6622 6999 📧 Email: sales@chisen.cn or chisenbattery@gmail.com