What are the defects?
There is a risk that the rechargeable battery pack may overheat cause smoke or may ignite.
What are the hazards?
If the defect occurs, there is a risk of a fire or a burn hazard to consumers and to the CF-S10 Panasonic Toughbook Computer
Source: Panasonic Australia Pty Ltd—Rechargeable Battery Pack CF-VZSU61U