Posted 8/12/2018 09:11 (#6925320 - in reply to #6925201) Subject: RE: Best battery cut off switch for semi?
Boone, Iowa
The purpose of the disconnect is to interrupt the complete circuit from battery (+) to the powered accessories, to chassis ground and back to battery (-). It is usually easier to install a disconnect to the ground side, since you are working with less cables on the (-) side.