Positive and Negative +/- Battery Cables STC SA3531NMThe following applies when using STC SA4008NM and STC SA3531NM together. If you have have already replaced the battery and starting cables with STC SA3531NM, these cables were included in the Copper Cable Kit (03M KIT). In the event the plane has not already had the Bogert "Low Loss" Copper Cable Kit installed, two cables (Battery Positive and Battery Negative) from our "Low Loss" Copper Cable Kit will be required when completing a Battery Box