Did you know Walmart will swap your dead car battery for a new one if it’s still under warranty—even if you don’t have the receipt? A mechanic on TikTok just scored a free replacement for a 3-year-old battery, no questions asked, and saved $170. The only catch? The new battery’s warranty doesn’t carry over. People in the comments are calling this the ultimate last-minute win! #Cars #Walmart #CarHacks