Quoted price for FUHUA battery GFM-500/2V500Ah from authorized agent

Specifications

• Rated Voltage: 2V
• Rated Capacity: 500Ah (10HR, 25℃)
• Overall Dimensions: Approximately L 240mm × W 170mm × H 330mm (Total Height 365mm) (Actual dimensions may vary slightly depending on production batch)
• Weight: About 30kg
• Internal Resistance: Relatively low, generally around 0.3mΩ (25℃)
• Number of Terminals: 4
• Charging Method: Constant voltage and current limiting is recommended
• Float Charging Voltage: 2.23 - 2.27V (25℃)
• Maximum Charging Current: 0.25C₁₀ amps (25℃), which is 125A
• 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 charge life for 2V standard series (25℃)

Performance Features

• High Safety: No electrolyte leakage, battery swelling or rupture risk under normal use. An internal safety valve is installed to effectively control the internal pressure of the battery, with excellent explosion-proof and acid mist filtering functions, which can prevent gas inhalation from affecting performance and avoid abnormal internal pressure damaging the battery47.
• Excellent Discharge Performance: Stable discharge voltage and flat discharge platform, which can provide stable power supply for loads. The plates are made of special materials and processes, with good high-current discharge performance, which can meet the needs of some equipment with high instantaneous high-current requirements47.
• Adaptable to Various Working Conditions: Has good vibration resistance, impact resistance, over-discharge resistance, over-charge resistance and high-current resistance47. For example, a fully charged battery can vibrate for 1 hour at an amplitude of 4mm and a frequency of 16.7Hz, or drop naturally from a height of 20cm onto a 1cm-thick hard wooden board 3 times, without any liquid leakage, battery swelling or rupture, and the open-circuit voltage remains normal47.
• Low Self-discharge Rate: High-purity raw materials and additives are used, with a self-discharge rate of less than 3% per month. It can better retain power during storage or non-use, reducing the frequency of charging and maintenance.

Application Fields

• Communication Systems: It is an ideal backup power source for communication base stations, switching equipment rooms, etc., which can continuously supply power to communication equipment when the mains power fails, ensuring the stable operation of the communication network.
• Power Systems: Suitable for DC screens in substations, relay protection devices, etc., providing stable DC power for the reliable operation of power systems.
• Emergency Lighting and Safety Systems: It can be used as a backup power source for emergency lighting systems, fire detection and fire extinguishing systems, safety alarm systems, etc., ensuring the normal operation of relevant equipment in emergencies, protecting personnel safety and the normal operation of facilities.
• New Energy Systems: Used as energy storage units in solar and wind power generation systems to store excess electricity, balance power and improve energy utilization efficiency.
• Other Fields: It is also widely used in railway signal systems, marine equipment, automated control systems, computer backup power supplies, medical system equipment, electronic instruments and other fields with high requirements for backup power reliability.