Based on the data of the AGE-1 Gundam AGE-1 Normal, the Adele is a mass production version of the AGE-1. The Adele debuts in A.G. 140 during an attack on the colony of Tordia.
In A.G. 140, the Adele starts to replace the older RGE-C350 Shaldoll Custom and RGE-B890 Genoace II units as the Earth Federation's main unit. It is deployed through-out the battles with the Vagan. Two Adele units, painted in a unique blue were piloted by Alisa Gunhale and Max Hartway.
Even in A.G 164, the Adele and its variants are deployed by the Earth Federation to counter the assault of the Vagan. The Adele and its variants make up the bulk of the Earth Federation forces defending Roustroulam.
info from mecha domain