Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.
Applies to
HP ZBook 15u G5. Confirm the exact model on the service label before starting.
HP ZBook 15u G5 Mobile Workstation rtc battery replacement. HP prints the spare part table for this procedure on printed page 55.
tools and parts
- Phillips P0 screwdriver
- Static-safe work surface
L17255-001- RTC battery. Source: printed page 55.
preparation
HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 31. Work on a grounded, static-safe surface, keep screws grouped by the position they came from, and handle boards and modules by their edges.
- Power the machine down. (printed page 40).
- Detach all external devices connected to the computer. (printed page 40).
- Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 40).
- Take off the bottom cover (see that procedure on page 36). (printed page 38).
- Detach the battery cable from the system board (see that procedure on page 50). (printed page 38).
replacement
- Detach the RTC battery cable carefully from the system board (1). (printed page 55).
- Using a flat tool (printed page 55).
- Install the rtc battery by working back through the printed removal steps (printed page 55).
Part numbers in our catalog
- HP RTC (CMOS) battery L17255-001 (L17255-001)
Check each part page for its source and variant notes before ordering.
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-zbook-15u-g5-rtc-battery-replacement-p55