Main Features:Manufacturer: American Battery Company Manufacturer Part Number: RBC23Battery Type: Maintenance Free Lead-acid Hot-swappableBattery Life: 3Year(s) to 5Year(s)Dimensions: 5.94 Inches lenght x 2.56 Inches width x 3.66 Inches height4 maintenance-free sealed lead-acid batteriesWeight: 31 lb Replacement for APC UPS: SU1000RM2U, SU1000R2BX120, SUA1000RM2U, SUA1000RMUSStandard Warranty: 2 Year(s) Limited