A materials handling vehicle comprising a materials handling mechanism, a drive mechanism, a battery receiving space, and a removable battery assembly, wherein: the materials handling mechanism is configured to engage goods in a warehouse environment and cooperates with the drive mechanism, under power from the removable battery assembly, to move goods along an inventory transit surface in the warehouse environment; the removable battery assembly and the battery receiving space cooperate to define a battery insertion and removal axis along which the removable battery assembly is inserted into and removed from the battery receiving space; and the removable battery assembly comprises lateral battery faces (202A, 202B), each comprising a longitudinal guide structure (204A, 204B) that is oriented along the battery insertion and removal axis; characterized in that: the battery receiving space comprises opposing guide blocks (160A, 160B), each arranged on opposite sides of the battery receiving space, and each comprising a securement portion (162A, 162B) and a replaceable portion (164A, 164B); the replaceable portion (164A, 164B) of each guide block (160A, 160B) comprises a friction-inducing surface (166A, 166B) and a guiding surface (168A, 168B); each friction-inducing surface (166A, 166B) extends along the battery insertion and removal axis, parallel to and facing an opposing one of the lateral battery faces (202A, 202B), with the removable battery assembly seated in the battery receiving space; and each guiding surface (168A, 168B) extends along the battery insertion and removal axis, perpendicular to the lateral battery faces (202A, 202B) and facing an opposing surface (207A, 207B) of the longitudinal guide structure (204A, 204B), with the removable battery assembly seated in the battery receiving space. the materials handling mechanism is configured to engage goods in a warehouse environment and cooperates with the drive mechanism, under power from the removable battery assembly, to move goods along an inventory transit surface in the warehouse environment; the removable battery assembly and the battery receiving space cooperate to define a battery insertion and removal axis along which the removable battery assembly is inserted into and removed from the battery receiving space; and the removable battery assembly comprises lateral battery faces (202A, 202B), each comprising a longitudinal guide structure (204A, 204B) that is oriented along the battery insertion and removal axis; characterized in that: the battery receiving space comprises opposing guide blocks (160A, 160B), each arranged on opposite sides of the battery receiving space, and each comprising a securement portion (162A, 162B) and a replaceable portion (164A, 164B); the replaceable portion (164A, 164B) of each guide block (160A, 160B) comprises a friction-inducing surface (166A, 166B) and a guiding surface (168A, 168B); each friction-inducing surface (166A, 166B) extends along the battery insertion and removal axis, parallel to and facing an opposing one of the lateral battery faces (202A, 202B), with the removable battery assembly seated in the battery receiving space; and each guiding surface (168A, 168B) extends along the battery insertion and removal axis, perpendicular to the lateral battery faces (202A, 202B) and facing an opposing surface (207A, 207B) of the longitudinal guide structure (204A, 204B), with the removable battery assembly seated in the battery receiving space. the battery receiving space comprises opposing guide blocks (160A, 160B), each arranged on opposite sides of the battery receiving space, and each comprising a securement portion (162A, 162B) and a replaceable portion (164A, 164B); the replaceable portion (164A, 164B) of each guide block (160A, 160B) comprises a friction-inducing surface (166A, 166B) and a guiding surface (168A, 168B); each friction-inducing surface (166A, 166B) extends along the battery insertion and removal axis, parallel to and facing an opposing one of the lateral battery faces (202A, 202B), with the removable battery assembly seated in the battery receiving space; and each guiding surface (168A, 168B) extends along the battery insertion and removal axis, perpendicular to the lateral battery faces (202A, 202B) and facing an opposing surface (207A, 207B) of the longitudinal guide structure (204A, 204B), with the removable battery assembly seated in the battery receiving space.