Battery Disconnect
What's the opinions on which battery terminal to connect a disconnect switch, positive or negative? Thanks,
Forum Discussion
Electrically wise there is no difference. Only a choice of convenience. In my case all of my multiple batteries NEGATIVE TERMINAL goes directly to frame ground an I use four position BLUE SEA battery switches in the POSITIVE path. These become my BATTERY DISCONNECT when I select OFF on all my BATTERY SWITCHES.
In my automotive battery layout it would be best to have the BATTERY DISCONNECT switch in the NEGATIVE PATH so that when you open up the circuit while removing battery terminal cables you DO NOT have to worry about your wrench touching close proximity grounded items. With the NEGATIVE PATH OPEN there will not be a circuit path to ground to cause sparking.
In my automotive battery layout it would be best to have the BATTERY DISCONNECT switch in the NEGATIVE PATH so that when you open up the circuit while removing battery terminal cables you DO NOT have to worry about your wrench touching close proximity grounded items. With the NEGATIVE PATH OPEN there will not be a circuit path to ground to cause sparking.
