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For those who've never done it, I would add one tip: If you can -- I'm not sure if the cable is long enough to provide much leeway -- attach the positive lead before you get the battery all the way in and clamped down. I had a bugger of a time getting my fingers or a quarter-inch ratchet on it. I ended up using an 8mm open end wrench, and even then tricky to get the bolt started.