HP guide description: "Battery (6-cell, 45-Wh, 2.0-Ah, Li ion; includes Mylar)". OEM documentation only; not bench-tested.
Source notes
HP EliteBook Folio 1040 G3 Notebook PC Maintenance and Service Guide, printed p17 (PDF p25): "(18) Battery (6-cell, 45-Wh, 2.0-Ah, Li ion; includes Mylar) 805096-005".