Repair Procedures: Removal

Turn the ignition switch OFF.
Disconnect the battery negative (-) terminal (A).
Battery negative (-) terminal tightening nut:

4.0 ~ 6.0 N.m (0.4 ~ 0.6 kgf.m, 3.0 ~ 4.4 lb-ft)

Fig 1: Disconnecting Battery Negative (-) Terminal
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the battery sensor connector (A).
Remove the battery sensor after loosening the sensor cable flange mounting bolts (B).
Battery sensor cable flange mounting bolt(Chassis ground):

21.6 ~ 32.4 N.m (2.2 ~ 3.3 kgf.m, 16.0 ~ 23.9 lb-ft)

Fig 2: Battery Sensor Connector
Courtesy of KIA MOTORS AMERICA, INC.