The B2 Super battle droid (SBD) was an upgraded version of the B1 battle droid, with superior armament and armor. They were manufactured after the battle of Naboo proved the need for stronger droids. B2s were used by the Trade Federation, the Techno Union, and later, on a much larger scale, the Confederacy of Independent Systems.
First Battle of GeonosisEdit
B2 Super Battle Droids were first seen on the Droid Factory on Geonosis being made with B1 battle droids. Later during the First Battle of Geonosis, B2 Super Battle Droids were deployed alongside B1's attacking the Clone Troopers.
B2 Super Battle Droids appeared in many battles during the Clone Wars era always fighting alongside their B1's. Super Battle Droids hated B1 battle droids and they always hit or smack them when needed.