Originally Posted by gddyup

No. Anytime you remove battery cables, it is always positive first, negative last when connecting the battery. Disconnecting the battery it is always negative first, positive last. When done in this manner you lessen the probability of having sparks when connecting or disconnecting your battery cables.

Ever seen a battery explode? I have. Not a pretty sight. Connecting your battery cables in a way that creates spark is enough to blow one up right in your face. I've seen it happen. The same thing goes when connecting jumper cables. To "erase" any memory functions, the only thing you need to do is remove the negative cable for a few minutes.