Amazon.com: GreenTech New 807957-001 HS04 Replacement Battery for HP 240 G4, HP 240 G5, HP 245 G4, HP 245 G5, HP 250 G4, HP 250 G5 14.8V 41Whr 4 Cell Battery 807612-421
Amazon.com: GHU New AR08 Battery Compatible with HP ZBook 15 17 Mobile Workstation Series HP ZBook 17 Series, Part NO. HSTNN-IB4H HSTNN-IB4I 708456-001 708455-001 [8 Cells 14.8V 5200 mAh/77Wh] : Electronics