Incorrect AC Adapter Power Shows in BIOS When Connect to Dell Performance Dock WD19DC or WD19DCS

Summary: Incorrect AC Adapter power shows in the BIOS when battery capacity is low when connected to Dell Performance Dock - WD19DC or Dell Performance Dock - WD19DCS. This occurs while using a dual USB-C cable on some XPS and Precision laptops. ...

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Symptoms

When booting BIOS while using a dual USB-C cable connected to the docking station, if the battery is lower than 10% the battery information shows 15W under AC adapter (Figure 1).
AC Adapter shows 15W
Figure 1: AC Adapter shows 15W

Affected Platforms:

  • Dell Performance Dock - WD19DC
  • Dell Performance Dock - WD19DCS
  • XPS 17 9710
  • XPS 17 9720
  • XPS 17 9730
  • Precision 5760
  • Precision 5770

Cause

Not applicable

Resolution

The following steps resolve the AC adapter error.

  1. Insert one USB-C connector into the USB port (Figure 2).
    First USB-C connector
    Figure 2: First USB-C connector
  2. Insert the second USB-C connector into the USB port (Figure 3).
    Second USB-C connector
    Figure 3: Second USB-C connector

Affected Products

Dell Performance Dock - WD19DC, Dell Performance Dock – WD19DCS, Precision 5760, Precision 5770, XPS 17 9710, XPS 17 9720, XPS 17 9730
Article Properties
Article Number: 000217571
Article Type: Solution
Last Modified: 24 Apr 2025
Version:  2
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