Specifications

• Rated Voltage: 2V
• Rated Capacity: 500Ah (10HR, 25°C)
• Dimensions: Approximately 240mm (L) × 170mm (W) × 330mm (H) (Total height 365mm) (Specific dimensions may vary slightly by production batch)
• Weight: Approx. 30kg
• Internal Resistance: Low, generally around 0.3mΩ (25°C)
• Number of Terminals: 4
• Charging Method: Recommended constant voltage with current limiting
• Float Charge Voltage: 2.23 - 2.27V (25°C)
• Maximum Charging Current: 0.25C?? amperes (25°C), i.e., 125A
• Operating Temperature Range: -20°C to +45°C
• Capacity Retention Rate: Greater than 97% per month (25°C)
• Case Material: ABS (Flame-retardant ABS material optional)
• Design Life: 10 - 12 years float service life for 2V standard series (25°C)

Performance Features

• High Safety: No electrolyte leakage during normal use, no risk of battery swelling or rupture. Equipped with an internal safety valve to effectively control internal pressure, providing excellent explosion-proof and acid mist filtration functions. Prevents gas inhalation from affecting performance and avoids damage due to abnormal internal pressure.
• Excellent Discharge Performance: Stable discharge voltage with a smooth discharge platform, ensuring consistent power supply to loads. Special materials and processes are used for the plates, providing good high-current discharge performance to meet the needs of equipment requiring high instantaneous current.
• Resistance to Various Conditions: Good resistance to vibration, impact, over-discharge, over-charge, and high current. For example, a fully charged battery subjected to 4mm amplitude vibration at 16.7Hz for 1 hour, or dropped naturally from 20cm height onto a 1cm thick hardwood board three times, shows no leakage, swelling, or rupture, with normal open-circuit voltage.
• Low Self-Discharge Rate: High-purity raw materials and additives are used, resulting in a self-discharge rate of less than 3% per month. This helps maintain charge during storage or non-use, reducing the frequency of charging maintenance.

Application Areas

• Communication Systems: Ideal backup power for communication base stations, switch rooms, etc., providing continuous power to communication equipment during power outages to ensure stable operation of communication networks.
• Power Systems: Suitable for DC panels in substations, relay protection devices, etc., providing stable DC power for the reliable operation of power systems.
• Emergency Lighting and Safety Systems: Serves as a backup power source for emergency lighting systems, fire detection and extinguishing systems, security alarm systems, etc., ensuring the normal operation of related equipment during emergencies to protect personnel safety and facility operation.
• New Energy Systems: Acts as an energy storage unit in solar and wind power generation systems, storing excess electricity to balance power and improve energy efficiency.
• Other Fields: Widely used in railway signaling systems, marine equipment, automated control systems, computer backup power, medical system equipment, electronic instruments, and other fields requiring high reliability of backup power.