B1-805 "Rodge" was recovered, reprogrammed, and promptly put into service for the Rebellion shortly after its formation. After a few successful shakedown missions, B1-805 was transferred to a small rebel cell on the Outer Rim. Unfortunately, the cell was all but destroyed shortly after, along with his transfer paperwork. Lacking clear instruction on why they had been sent a single B1, the survivors of the cell left him in a low power state in a small storage shed and promptly forgot that he even existed.
He was eventually located by B1-243 a few months later, who liberated the forgotten B1 by bursting into his storage shed, shouting "Get back in line!" and throwing a hilariously oversized scatter blaster into his lap.