Sparks when doing the right order, no when not

[Golitan11]

Each time I disconnect my battery, I do it the right way: negative first and then positive. However, when I reconnect the battery, I cannot reconnect the positive first and then the negative (right way) because it is doing sparks (small ones) and it is melting the terminal each time (even when I touch it only a few milliseconds). So. I connect the negative first and then the positive (bad way, I am really careful with my wrench though) and I get only a weak spark sound and that's it. Any idea why it is doing this? Thanks.

[lightfoot]

do you have other batteries elsewhere in the vehicle?

[lightfoot]

or caps?

[Golitan11]

No. I don't know if it change something but my amplifier ground is always hooked up (I had to fix it in a really deep section of the trunk).

[lightfoot]

that should not matter. however if u have a huge amplifier the internal caps do hold a residual charge, which might produce the sparks. not likely though

[Tarball]

Melting terminal suggests a short and not a draw. What did you change when you had it disconnected?

[Golitan11]

Nothing. It was just to connect my headunit wire harness (safety). What is weird is that coennecting negative last does it but not positive last...