OPzS300-2 Flooded Lead-Acid Battery (For Substation DC Operating Power Supply)

I. Core Specifications

• Model: OPzS300-2
• Rated Voltage: 2V
• Rated Capacity: 300Ah (C10, 25℃)
• Battery Type: Tubular Plate Flooded Lead-Acid Battery (OPzS)
• Design Float Life: 20 years (at 25℃)
• Maintenance Interval: Low maintenance, electrolyte replenishment cycle ≥3 years

II. Key Advantages

1. Extreme Environmental Adaptability:
   
   
   Wide operating temperature range (-40~65℃), stable performance in harsh substation environments.
2. Low Maintenance & High Safety:
   
   
   Acid-proof and explosion-proof design, meets DIN40736 safety standards; long electrolyte replenishment cycle reduces on-site maintenance workload.
3. Superior Cycle & Deep Discharge Performance:
   
   
   Excellent cycle life (e.g., 3000 cycles at 50% DOD); strong deep discharge resistance and recovery capability, fully meets the long-term backup and frequent operation needs of substation DC systems.
4. High Compatibility & Stability:
   
   
   Standard 2V unit design, easy to form 110V/220V DC power packs matching substation control/protection systems; low internal resistance, stable high-current discharge performance.
5. High Reliability & Long Service Life:
   
   
   Tubular plate structure, excellent corrosion resistance; meets or exceeds DIN/GB/IEC standards, ideal for high-reliability standby power applications.

III. Applications

• DC operating power supply for substations (control, protection, signal, circuit breaker operation)
• Backup power for substation relay protection and automation monitoring systems
• UPS/EPS emergency power supply systems for power stations
• Telecommunications base stations, solar/wind power energy storage systems

IV. Usage Guidelines

• Charging: Float charge voltage: 2.25–2.30V/unit; equalizing charge voltage: 2.35–2.40V/unit. Strictly avoid overcharging or undercharging.
• Discharging: Keep daily discharge depth ≤50% (recommended ≤30% for long-term use); 100% full discharge is strictly prohibited to avoid irreversible damage.
• Environment: Install in a ventilated, dry, and dust-free area; avoid direct sunlight and high humidity. The operating temperature range is -40~65℃, and the optimal operating temperature is 25℃.
• Maintenance: Regularly check the electrolyte level and voltage; replenish electrolyte every 3 years or as needed.