Do You Connect Positive Or Negative First On A Battery. Theres considerable controversy over whether its best to hook up the master-shutoff kill switch to the batterys positive or negative side. When connecting a battery charger I connect the positive lead first.
When installing a mower battery always connect the positive cable first. The positive cable is red. So connecting the lead first is safer.
You must also run your alternator feed between the battery and the switch so when its in the off posission it will kill the power to the hole car including the engine.
You really do not want this. Regarding this what does a car battery terminal look like. This video will show you how to connect the positive and ground wire on the battery of your RV or camping trailerThere will be a red and a black or white wi. Note that Red cable is positive and Black cable is negative -.
