Leoch FT12-55
FT12-55 is a valve-regulated lead-acid battery from the LEOCH front-terminal series. It features a rated voltage of 12V and a rated capacity of 55Ah, designed specifically for communication base stations, UPS systems, power grids, and similar applications. The front-terminal design simplifies cabinet installation and wiring. Encased in flame-retardant ABS material, it offers superior safety and environmental adaptability. Supporting wide-temperature operation, the battery delivers stable charging performance in both float and equalization modes, with low self-discharge rates for long-term standby. It is an ideal power storage solution for data centers and communication server rooms.
Product Specifications
Project | Parameters |
Product Model | FT12-55 (12V 55Ah) |
Rated Voltage | 12V |
Rated Capacity | 55Ah (C₁₀, 1.80V / cell) |
Dimensions (Length × Width × Height × Total Height) | 277±2mm × 106±2mm × 222±2mm × 222±2mm (10.9"×4.17"×8.74"×8.74") |
Weight | 17.3kg (38.1 lbs) |
Terminal Specifications | M6 |
Housing Material | ABS |
Rated Capacity (25°C) | C20:60.0Ah / C10:55.0Ah / C5:48.2Ah / C3:43.8Ah / C1:36.9Ah |
5S Maximum Discharge Current | 550A |
Internal Resistance (25°C) | Approx. 7.6 mΩ |
Operating Temperature Range (Discharge / Charge / Storage) | Discharge: -15~50°C / Charge: -20~40°C / Storage: -15~40°C |
Recommended operating temperature range | 25±3℃（77±5℉） |
Maximum charging current (25°C) | 16.5A |
Charging Voltage (25°C, Float / Equalization) | Float: 2.25~2.30V/cell; Boost: 2.35~2.40V/cell, with temperature compensation |
Temperature Compensation Coefficient | Float: -3mV/cell/°C; Boost: -4mV/cell/°C |
Impact of Temperature on Capacity (40°C/25°C/0°C) | 40℃：106% / 25℃：100% / 0℃：86% |
Self-discharge rate | ≤3%/mo @ (25°C) |
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