Yes, there is. its called "Convert format". Go to processing toolbox and run it from there by right click then run as batch processing.

[![enter image description here][1]][1]

**UPDATE :**

put as follow in **creation option** column:

    -dsco AltitudeMode=absolute -dsco NameField=Name -dsco DescriptionField=Description

For example, in my case will be 

> -dsco AltitudeMode=clampToGround -dsco NameField=NAME_1 -dsco DescriptionField=Description

**TEST RESULT**
[![enter image description here][2]][2]

Be Careful, when insert the creation option attribute (No space at the end allowed, seems it affecting the result):

Wrong → [![enter image description here][3]][3]
Right → [![enter image description here][4]][4]



This extra description value can be modified as you need like **AltitudeMode** can be *clampToGround* or *relativeToGround* like the one that you see within "Save as" method.

UPDATE 2 - Alternative

    -dsco altitudeModeEnum=clampToGround -dsco NameField=Name -dsco DescriptionField=description

Alternative option has been tested.

Source : [GDAL.org][5] and [KML Guide for Google Developer][6]


  [1]: https://i.sstatic.net/wfuen.png
  [2]: https://i.sstatic.net/ygput.jpg
  [3]: https://i.sstatic.net/33izB.png
  [4]: https://i.sstatic.net/I7nnH.png
  [5]: http://www.gdal.org/drv_kml.html
  [6]: https://developers.google.com/kml/documentation/kmlreference#kml-fields