(dumb) question about winterizing

[kayakterp]

I take my battery out and bring it home for winter storage. That way it doesn't drain dead and also nobody can steal it while in storage

 

[Bob K4TAX]

Negative is what we do. No sparks when hooking it back up if something was left on I was always taught not to complete or break or make a connection using the positive terminal. Even with jumpers, most will attach the positive first, then the negative. Just reverse with taking them off. Disconnect the negative then the positive.
Ken

Negative or positive, if a current is flowing, it is an equal value in either one when disconnecting or connecting. I don't see why/where disconnecting either one would minimize sparking.

In automotive work, it is a safe practice to always disconnect the negative terminal. Then if something comes in contact with the positive side, nothing happens. If while disconnecting the positive side, should the wrench come in contact with a frame member, lots of sparks fly. I have a friend who lost his wedding ring and finger as a result of it coming in contact with the positive battery cable and chassis ground at the starter. He had the wrench in his left hand, it was in contact with the ring, he put the wrench on the starter terminal, not realizing the back of his hand and ring were against the chassis. The result happened in a flash. That little band of gold became liquid around his finger. All had to be surgically removed.

Always disconnect the NEGATIVE first!