Product Overview The Leoch Battery DJM12-45 is a 12V, 45Ah valve-regulated sealed lead-acid battery that utilizes gel electrolyte technology, making it suitable for various energy storage scenarios. Performance Features High Sealing Performance: Designed with a three-dimensional porous mesh silica gel structure, the electrolyte is in a gel state with no flow or leakage, supporting vertical or horizontal installation to avoid environmental and equipment impact. Long Service Life Design: The grid is made of lead-calcium-tin-aluminum alloy, with the positive plate using a high-tin, low-calcium alloy to enhance corrosion resistance; The gel electrolyte optimizes the crystallization process of the positive and negative active materials, improving deep discharge cycle capability, with a float service life of up to 12 years. Safe and Reliable: The casing is made of ABS material, sealed with epoxy resin technology, ensuring a secure seal between the terminals and the battery cover; Equipped with a filtered venting and explosion-proof device to filter emitted gases and reduce external risks. Stable Performance: Imported corrugated PVC separator with high porosity and low resistance, ensuring internal conductive efficiency; High thermal capacity and excellent heat dissipation, suitable for high-temperature or overcharge scenarios, reducing the risk of drying out; Low self-discharge rate, with a self-discharge rate of <1.8% after 28 days of storage at 25°C. Wide Temperature Adaptability: Charging temperature: 0 to +40°C; Discharge temperature: -20 to +50°C; Storage temperature: -15 to +50°C. Technical Parameters Item Parameter Rated Voltage 12V Rated Capacity (20-hour rate) 45Ah Length × Width × Height 197mm × 165mm × 170mm Weight Approx. 14.2kg Design Life 10 years (under standard conditions) AC Internal Resistance ≤7.5mΩ Application Scenarios Communication Field: Backup power for communication base stations, switches, etc. Power Systems: Transmission substations, relay protection devices, emergency lighting. Energy Storage Equipment: UPS/EPS power supplies, photovoltaic/wind energy storage systems. Industrial and Security: Railway transportation, marine backup power, fire alarm systems, automated control equipment. Precautions Avoid short circuits during installation and ensure good ventilation; Do not mix batteries from different batches; For long-term storage, periodic recharging is required (recommended every 3 months).