Specifications:Model Name: CS03XL; Battery Type: Lithium polymer; Voltage: 11.4V; Capacity: 48Wh ; Cells: 3-cell; Color: Black; Condition:New; Battery life: More than 1000 cycles, 100% New from Manufacturer Compatible ModelReplacement Battery for HP Elitebook 745 G4 G3, HP EliteBook 755 G4 G3EliteBook 840 G3EliteBook 840 G4 EliteBook 850 G3ZBook 15u G3 ZBook 15u G4 Mobile Workstation Notebook Compatible P/N: CS03XL CS03 800231-141 800513-001 HSTNN-I33C-4 HSTNN-I33C-5 HSTNN-I41C-4 HSTNN-I41C-5 HSTNN-IB6Y HSTNN-UB6S Security & Reliability:The CS03XL battery is engineered with built-in Overcharge, Overdischarge, Over-temperature, and Short-circuit Protection, guaranteeing security and reliability, and ensuring your laptop operates safely Excellent After-Sales Service: 24 hours Online Support. If you have any questions or need assistance with your CS03XL 48Wh Battery, we are here to help