Stop in for a cup of coffee

it's often a good idea to make coil connection very easy to remove JUST in case, alligator clip or a quick disconnect on the wire comes to mind
i used a spade connection on the jumper wire end. then made a wire with a ring terminal on one end that bolted to the battery, with a female spade connector on the other end, connect the male jumper wire end when i want it to run. works great.