I just replaced my battery with the ifixit kit, but like some people I skipped all the steps regarding removing components.
I protected the screen with foil, tilted the laptop so excess acetone would go away from the logic board, and proceeded to remove the battery.
i used very small amounts of fluid, and worked them off with plastic cards. They came off pretty easily; I spent more time removing the excess black glue strips.
This is NOT difficult. Just go slow.