Apple keyboard lid won't open due to battery leakage
SOLVED: The battery cap is corroded on. How can it be removed? - Apple Wireless Keyboard - iFixit
AA batteries leakage and the threaded lid… - Apple Community
Apple Magic Trackpad - battery cover would not come off.. corroded batteries.. plyers, flat head screwdriver, quarter bent in half, vice grips... : r/techsupportgore