First. the +/positive/hot wires go to the respective/separate +positive/hot side battery terminals.. and the -/negative/ground wire go to their respective/separate -/negative/ground battery terminals. The wires from the charger are "paired out".. meaning the + and - pair must go to the same battery. .. you can't mix and match.
Answers & Comments
First. the +/positive/hot wires go to the respective/separate +positive/hot side battery terminals.. and the -/negative/ground wire go to their respective/separate -/negative/ground battery terminals.
The wires from the charger are "paired out".. meaning the + and - pair must go to the same battery. .. you can't mix and match.