The Liebert GXT4-288VBATT is a 288VDC Rack/Tower external battery cabinet is designed for use with the Liebert GXT3-8000RT208, GXT3-10000RT208, GXT4-8000RT208, and GXT4-10000RT208 UPS systems. Includes the internal battery, rack slide kit (RMKIT18-32), 1.5 foot internconnect cable, and ships on an individual pallet. Standard two year warranty, with optional warranty extensions of one year or three years