51.2V 100Ah Rack-Mount LiFePO4 Battery — 5kWh Stackable Server Rack Energy Storage Module

The UBETTER 51.2V 100Ah rack-mount LiFePO4 battery is a 5kWh energy storage module designed for solar systems requiring flexible capacity expansion. The module slides into standard cabinets and supports parallel stacking; users can start with a single unit and scale the system to 20kWh, 50kWh, or higher as needs grow, eliminating the need for system redesigns or wasted investment.

The front panel is designed with practical operation in mind: a clear LCD screen provides intuitive monitoring of voltage, current, State of Charge (SOC), and system status, while an integrated smart Battery Management System (BMS) offers comprehensive protection for every cell against overcharge, over-discharge, over-current, short circuits, and high temperatures. Additionally, included terminal covers and circuit breakers ensure safety during installation and maintenance.

With excellent compatibility, the battery supports RS485, RS232, and CAN communication protocols, allowing seamless integration with leading hybrid inverters such as Deye, Growatt, Sunsynk, Victron, and Solis. Whether building a new off-grid system or upgrading an existing solar setup, connection and communication configuration can be completed in minutes.

The core components utilize Grade A prismatic LiFePO4 cells, offering a cycle life of over 8,000 cycles (equivalent to more than 10 years of daily use). They have passed rigorous safety tests—including nail penetration and overcharge tests—to ensure no fire, explosion, or leakage occurs. The rugged metal casing features side handles, protecting the cells during transport while allowing two people to carry the unit easily without extra tools.

Each module is manufactured at our 20,000-square-meter facility in Huizhou, China, undergoing a complete production process that includes cell sorting, battery assembly, aging tests, and final inspection. For bulk orders, we also offer OEM and ODM services, supporting customization of branding (logos), housing designs, capacity specifications, and communication protocols.