Orlando Battery D12-250/12V 250Ah Specification Emergency Battery

Product Overview

The Orland D12-250 is a 12V 250Ah valve-regulated sealed lead-acid maintenance-free battery. Manufactured with advanced production processes and high-quality materials, it offers high capacity, long service life, and stable, reliable performance, making it suitable for large-scale backup power and energy storage applications.

Core Performance Features

1. Maintenance-Free Design

   • Utilizes Absorbent Glass Mat (AGM) technology, where the electrolyte is fixed within the separator, eliminating the need for liquid replenishment during use and ensuring convenient maintenance.
   • Sealed valve-regulated structure with a gas recombination efficiency of ≥99%. Internal gas circulates during charging with no acid mist leakage, meeting safety and environmental requirements.

2. Long Life and High Durability

   • Positive and negative plates are made of lead-calcium multi-alloy material, providing excellent corrosion resistance. The design life under float charging conditions can reach 12 years (at 25°C).
   • Supports deep discharge (discharge depth ≥85%) with a cycle life of ≥350 cycles (at 100% depth of discharge), making it suitable for high-frequency charge and discharge scenarios.

3. Low Self-Discharge and High Consistency

   • High-purity raw materials reduce the self-discharge rate. Monthly self-discharge rate is ≤2.5% at 25°C, with a capacity retention rate of ≥92% after 6 months of storage.
   • Automated production lines combined with precise testing processes ensure a voltage difference of ≤0.02V and an internal resistance difference of ≤3% within the same batch, facilitating multiple series and parallel combinations.

4. Wide Temperature Adaptability

   • Operating temperature range: -20°C to 50°C (discharge), -5°C to 40°C (charging), ensuring stable performance under complex climatic conditions.
   • Capacity retention rate is ≥88% at low temperatures (-10°C), while self-discharge rate at high temperatures (40°C) is only 4% per month, with controllable performance degradation.

5. Safety and Structural Advantages

   • Equipped with a built-in pressure relief valve (opening pressure 10–30 kPa) to prevent internal overpressure. The casing is made of flame-retardant ABS material (UL94 V-0 grade), complying with fire safety standards.
   • Terminals are M10 specification, supporting various installation methods such as vertical and horizontal placement. Dimensions are 522mm × 268mm × 228mm (L × W × H), with a weight of approximately 68kg.

Specification Table

Typical Application Scenarios

1. Large Data Centers and Communication Hubs: Serves as the core backup power for UPS/EPS systems. A series of 20 units can form a 240V DC system, meeting backup power requirements for over 12 hours.
2. Power and Energy Sector: Suitable for DC panels in substations, photovoltaic/wind energy storage systems, supporting large-capacity and long-duration energy storage, and adaptable to off-grid power generation scenarios.
3. Industrial and Rail Transportation: Used in railway signaling systems and industrial automation equipment backup power, capable of rapid power supply startup even at low temperatures of -15°C.
4. Medical and Security Systems: Provides stable and reliable backup power for hospital emergency systems and large-scale surveillance networks, ensuring continuous operation of critical equipment.

Usage Precautions

• Installation Standards: Battery packs should be installed in well-ventilated environments, avoiding direct sunlight. Ensure that connecting cables are appropriately sized and contact points are secure during series connections.
• Temperature Management: In high-temperature environments, it is recommended to configure air conditioning or cooling fans to maintain ambient temperature ≤25°C for extended lifespan. In low-temperature environments, preheating devices can be used to improve charging efficiency.
• Storage and Maintenance: Fully charge the battery before long-term storage and perform a supplementary charge every 3 months. The storage environment should be dry, free of corrosive gases, and avoid stacking or heavy pressure.