7755-025 QuickCable 14 Inches 2 Battery Harness Black Negative (25 Pack) - QuickHarnesses are the easy and correct way to interconnect batteries in parallel or series in group 27 and 31 battery applications. xa0Our parallel battery jumpers are 2/0 gauge and come in a variety of configurations for two or three battery setups. xa0Our series jumpers are 1 or 2/0 gauge depending on the voltage requirements. Can™t find exactly what you are looking for Not a problem We offer custom made versions as well. Top Post to Power Take Off Post,Exceeds SAE specifications,Ideal for Group 27 batteries, Group 31 batteries, and similar batteries,Most efficient way to connect two paralleled batteries for delivery of maximum starting power at same voltage,Fine stranded copper conductor for maximum conductivity and flexibility