Hp 840 g6 Healthcare edition... I've been able to remove bios lock and installed a fresh copy of Windows 10, which has been no small feat. Everytime I think I've got it
How to Remove / Replace HP EliteBook 840 G3 Battery - YouTube
HP EliteBook 840 G5 Battery Replacement - iFixit Repair Guide
HP EliteBook 840 G5 Battery Replacement - iFixit Repair Guide
Amazon.com: Fancy Buying 44Wh Laptop Notebook Battery for HP EliteBook 840 G1, 845 G2 Series; HP ZBook 14 Series; P/N: CM03XL CO06XL E7U24AA HSTNN-IB4R HSTNN-DB4Q HSTNN-DB4R 716724-1C1 716723-271 717376-001 : מוצרי חשמל
HP EliteBook 840 G4 Battery Replace | How to Perform Battery Replacement On HP EliteBook 840 G4 - YouTube