- "Those 631s are not the brightest lights on the ship."
- ―A fellow droid speaking about the inferior capabilities of this 631 model
In 22 BBY, the Galactic Republic managed to trace the location of the Separatist listening post, the Skytop Station, and sent a clone strike team lead by Jedi General Anakin Skywalker and padawan Ahsoka Tano to take it out.
Meanwhile on the station, this 631 model B1 battle droid along with three other B1 battle droids were chatting, one of them giving this droid an important object to carry to another level without dropping it. When this droid failed to accomplish the task and dropped the object, the other droid expressed his disappointment towards the intelligence of the 631 model.
This droid was eventually destroyed along with the whole squadron of droids when the Republic forces detonated the explosives they had planted on the station, destroying it.