I had this same issue with this camera, turns out it was the terrible batteries I was using! I have a bunch of these absolute garbage "Chateau" batteries, they're fine for running a remote control for a few years, but anything more demanding just demolishes them instantly. My Canon A520 could take maybe 2-4 shots, then die. I just put some decent name brand batteries in it, and it been working fine! Buy good batteries! 😁

White Vinegar! I find white vinegar works significantly better at neutralizing and removing battery leakage! Put some white vinegar on a Q-tip, and gently scrub down the affected areas. You can HEAR the sizzle of the alkaline being neutralized by the vinegar! Once it's clean, THEN use rubbing alcohol to clean off any remaining residue. 😁 *Edited: Misused the word "Acid" where "Alkaline" should have been used!