Lead-acid battery GFM-300/2V 300Ah specifications and parameters

Specifications 3

• Rated Voltage: 2V
• Rated Capacity: 300Ah (10HR, 25℃)
• Overall Dimensions: Length 170mm × Width 150mm × Height 325mm (Total Height 360mm)
• Weight: Approx. 18.35kg
• Internal Resistance: Approx. 0.43mΩ (25℃)
• Number of Terminals: 2
• Charging Method: Constant Voltage and Current Limiting is recommended
• Float Charging Voltage: 2.23 - 2.27V (25℃)
• Maximum Charging Current: 0.25C₁₀ Amperes (25℃), which is 75A
• Operating Temperature Range: -20℃ - +45℃
• Capacity Retention Rate: More than 97% per month (25℃)
• Enclosure Material: ABS (Flame-retardant ABS material is optional)
• Design Life: 10 - 12 years of float charging life for 2V standard series (25℃)

Performance Features

• Maintenance-free Design: Adopts advanced sealing technology and excellent oxygen recycling composite capability. The oxygen generated during charging can be almost completely absorbed, no need to add electrolyte during use, and the water content of the electrolyte hardly changes¹.
• Excellent Discharge Performance: The plates are made of special materials and processes, which result in low internal resistance of the battery, good high-current discharge performance, and stable discharge voltage, providing stable power for loads¹.
• Low Self-discharge Rate: High-purity raw materials and additives are selected, with a self-discharge rate of less than 3% per month. The battery can maintain its power well during storage or when not in use¹.
• Good Deep Discharge Recovery: Adopts a special electrolyte formula, the battery has good recovery characteristics after deep discharge, which can effectively extend the service life of the battery¹.
• High Safety: Equipped with an internal safety valve, which can prevent gas inhalation from affecting performance, avoid abnormal internal pressure from damaging the battery, and no electrolyte or acid mist is discharged during normal float charging¹.

Application Fields 4

• Communication Systems: Provide reliable backup power for communication base stations, switching equipment rooms, etc., to ensure that communication equipment can continue to operate during power outages.
• Power Control Systems: Suitable for DC power supply panels in substations, relay protection devices, etc., to ensure the stable and reliable operation of power systems.
• Railway Signal Systems: Provide backup power for railway signal equipment to ensure the safety and normal operation of railway transportation.
• Solar and Wind Power Generation Systems: Can be used as energy storage units to store excess electric energy and improve energy utilization efficiency.
• Other Fields: Can also be applied to safety protection alarm systems, emergency lighting systems, electronic instruments and other fields with high requirements for backup power.