Absolutely no need to take apart the whole thing, get some strong fishing line and slowly saw the adhesive away. Once the battery is out, (if you are prone to be clumsy just cover/ shield the rest of the computer, than use GOO GONE or the like waiting a couple minutes to scrape out the old adhesive. The only reason they make your take everything out is that they assume you are lazy and will be using the adhesive remover which could damage the rest of the computer if allowed to splatter etc. Just save your self some time and stress, get strong braided fishing line ( works way better than floss or string as it is of a smaller diameter and isn’t smooth and helps the sawing action), and work your way around each cell. This is still way shorter than removing the entire computer and much less likely hood of damaging sensitive connectors.