Latitude Not Charging with Unknown AC Adapter Alert Message

The computer shows " Alert! Unknown AC power adapter, may affect performance" (Figure 1).

Figure 1: "Alert! Unknown AC power adapter, may affect performance" error message

Affected Platforms:

• Latitude 3420
• Latitude 3520
• Latitude 3430
• Latitude 3530

The error message can be resolved but ensuring the AC adapter cable is correctly connected to the laptop (Figure 2 & 3).

Figure 2: Not fully connected

Figure 3: Fully connected