Tips: Only Fit For EliteBook 840 850 G1/G2,Not G3 G4 !!! Specification: Battery type: Li-Polymer Voltage: 11.1V (Compatible with 10.8V) Capacity: 4000mAh Cell: 6 Cells recharge cycles： 500 Operation time: Around 2-3 hours Compatible Part Numbers： CM03XL CM03 CM03050XL HSTNN-IB4R HSTNN-DB4Q HSTNN-L11C-5 HSTNN-LB4R 717376-001 716724-421 716724-1C1 (3ICP7/61/80) 716723-271 Compatible Models：( Ctrl + F for fast search ur laptop model) HP EliteBook 740/745/750/840/845/850 Series HP EliteBook 740/745/750/840/845/850 G1 Series HP EliteBook 740/745/750/840/845/850 G2 Series.
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