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Step 3 of 6 · Battery & Terminal Service

Negative first

Negative first — step 3 of 6 in Battery & Terminal Service. Disconnect negative, then positive. Reverse when installing. That order reduces the chance a wrench from positive to the body sparks.

Negative off first. Positive on first when you put it back.
Negative off first. Positive on first when you put it back.

Free auto & mechanics tip: Negative first (step 3 of 6 from "Battery & Terminal Service").

Disconnect negative, then positive. Reverse when installing. That order reduces the chance a wrench from positive to the body sparks.

Baking soda paste + water, brush until shiny, dry. Grease on the post sides after the clamp is tight — not a thick layer that blocks metal-to-metal contact.

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