Lucy was an old Series Seven.
She did good work at the droid shop, and a vintage bot demonstrated to customers a bit of class, as opposed to the new Series Tens in the warehouse.
But she had a hard time holding a charge, and those Series Sevens had an integrated hardwired battery.
A swappable battery was a risky retrofit. Which Lucy declined.
She spent all of her time tethered to a power cord, never going more than five meters from the reception desk.
Smiling, welcoming people, waving people past, and arranging repairs for the broken Series Tens being returned.