The following notice appears on the Philips website:
Philips Avent Digital Video Baby Monitor (SCD620)
As a precaution, Philips is voluntarily recalling all seven Digital Video Baby Monitor models in the SCD620 series, produced between January 2016 and March 2018. The products that might be affected are:
In very rare cases, the battery in the parent unit can overheat while plugged into the electrical connection. This poses a potential fire hazard.
See the website to check whether your product is affected.