Intelligent lithium battery, integrated with self-designed BMS and long life LFP cells, which can be widely used in various telecom and energy storage system. This 48V 150Ah rack-mounted LiFePO4 battery is a high-performance energy storage solution designed for telecom, data center, and solar applications. Featuring a nominal energy of around 7.2kWh, it delivers stable and reliable power output for critical systems. Built with advanced LiFePO4 cells and an intelligent BMS, it ensures enhanced safety with protection against overcharge, over-discharge, overcurrent, and temperature fluctuations. The standard 19-inch rack design allows easy installation and scalability, supporting multiple units in parallel for larger capacity systems. With a long cycle life exceeding 6000 cycles and wide operating temperature range, it provides a durable, maintenance-free, and cost-effective solution for long-term energy storage needs.