This is the reason I asked about the copper ends on battery cables. Could anyone help me calculate the range I should get from 8 75 ah deep cycle batteries? I did a road test, and my beginningpack voltage after charging overnight was 103V I drove for 6 miles, and my voltage at rest was 98v. I was wondering if this is normal or do I have a voltage drop somewhere? I did have a kelly dc-dc converter hooked to the 12v battery up front, but I disconnected it. Any thoughts? Thanks Watt