by striker99 on Mon Jan 29, 2018 12:34 pm
Hi, I kept the original earth wires to the original starter battery. I ran about 0B&S wire from the negative on the original starter to the second battery. I didn't ground the second battery to earth but I figure this setup is good enough.
My second battery is an excide extreme starter battery, about 630cca and 63ah, I use this as a starter battery, and use the original starter for accessories.