Fair point, I don't think a "standard" has been made yet by the SAE. Mine's been in the car for almost a year, no issues. I drive the car everyday, and have left it twice for a week untouched all with no issues starting. Cold starts were only around 19 degrees this year, but it did fine. For fitment I got a set of posts for the leads to go too, made a step for the battery to sit on, ordered a top-strap to fit the new battery, and retrofitted some battery posts from an old build.