OPzS420-2 Tubular Plate Flooded Lead-Acid Battery (For Substation Backup Power)

I. Core Specifications

• Model: OPzS420-2
• Rated Voltage: 2V
• Rated Capacity: 420Ah (C10, 25℃)
• Battery Type: Tubular Plate Flooded Lead-Acid Battery (OPzS)
• Design Float Life: 20 years (at 25℃)
• Maintenance Feature: Low maintenance design, electrolyte replenishment cycle ≥ 3 years

II. Key Advantages

1. Extreme Environmental Adaptability
   
   
   Wide operating temperature range: -40~65℃, ensuring stable performance in harsh substation environments.
2. High Safety & Low Maintenance
   
   
   Acid-proof and explosion-proof design, meeting DIN40736 and other international standards. Long electrolyte replenishment cycle greatly reduces on-site maintenance workload.
3. Excellent Cycle & Deep Discharge Performance
   
   
   Designed for both deep and shallow cycle applications. Achieves 3000 cycles at 50% DOD, with excellent deep discharge resistance and recovery capability, fully meeting the long-term standby and frequent operation needs of substations.
4. High Compatibility & Stability
   
   
   Standard 2V cell design, which can be flexibly assembled into 110V/220V DC power packs to match substation control and protection systems. Features low internal resistance and stable high-current discharge performance.

III. Applications

• DC operating power supply for substations (for control, protection, signaling, and circuit breaker operation)
• Backup power for power monitoring and relay protection systems
• Energy storage systems for telecommunications base stations, solar and wind power
• UPS/EPS emergency power supply systems

IV. Usage Guidelines

• Charging Requirements: Float charge voltage: 2.25–2.30V/cell; equalizing charge voltage: 2.35–2.40V/cell. Avoid overcharging or undercharging.
• Discharging Requirements: Keep daily discharge depth ≤ 50%. 100% full discharge is strictly prohibited to prevent irreversible damage to the battery.
• Environmental Requirements: Install in a well-ventilated, dry, and dust-free area. Avoid direct sunlight and high humidity. Operating temperature range: -40~65℃, with an optimal operating temperature of 25℃.
• Maintenance Notes: Regularly check the electrolyte level and cell voltage. Replenish electrolyte every 3 years or as needed.