Connecting Batteries in Series Parallel to Increase Battery System Capacity.
When connection 6 volt batteries together, it is recommended to use thick diameter cable.
2/0 gauge Excelene welding cable has high flexibility and is rated for 600 volts.
To purchase battery connector cables, click here
To prevent battery terminal damage due to electric arcing , it is also a good idea to use split washers to prevent the battery connection cable from coming loose.
Apply dielectric grease to battery terminals after connection is made. Dielectric grease is electrically insulating and does not break down when high voltage is applied.