Amazon.com: NEW AC Adapter Charger replacement for HP EliteBook Folio 9470m Series; HP EliteBook 810 G1, 810 G2, 820 G1, 840 G1; HP ProBook 440 G2, 450 G2 Laptop Notebook Battery Power
CM03XL 50Wh battery for Hp EliteBook 840 G1 G2 717376-001 HSTNN-LB4R | Store Shoppe
Hp EliteBook 840 G1 50Wh Replacement Laptop Battery
Amazon.com: Battery 4500mAh Replace for HP 716724-1C1, 716724-421, CM03050XL, CM03XL Fit for HP E7U24AA, EliteBook 840 G1, EliteBook 845 G2 : Electronics