Specifications:
Battery Type: Li-ion
Battery Condition: Brand New
Battery Voltage: 11.1V
Battery Cells: 9-Cell
Battery Capacity: 90Wh/7700mAh

Replace Part Number:
808398-2B1, 808398-2B2, 808398-2C1, 808398-2C2, 808452-001, 808452-002, HSTNN-C87C, HSTNN-DB7D, VV09090XL, VV09XL

Compatible Laptop/Notebook Models:
HP ZBook 15 G3 Series:
T7V50EA, V2W07UT,T7V57EA, Y6J87ES,T7V51ET, X3W51AW,Y6J57ET,T7V61ET,T7V52ET, Y6J59ET, V2C98AW,
T7V55EA,V2W05UT,T7V56ET,T7V51EA,Y3Z09ES,V2W12UT, T7V58ET,T7V54EA, T7V52EA, X9T85UT, Y6J59EA, V1H59UT, T7V53EA, V2D00AW,
HP ZBook 15 G3 Mobile Workstation Series,
HP ZBook 15 G4 Series:
Y6K27EA, 1RR24ES, 1RQ64EA, 1RR24ES, Y6K18EA, 2ZB95ES, 2ZB97ES, Y6K21EA, Y4E77AV,Y6K19EA,Y6K18EA, Y6K21EA, 2ZB97ES, Y6K29EA, 1RQ65EA,
1RQ64EA,Y4E80AV ,Y6K29EA, 2ZB95ES, Y6K19EA, 1RQ65EA, Y4E80AV,
HP ZBook 17 G3 Series.

You can use "Ctrl+F" to find your own model or part number.