I recently looked into whether Walmart replaces watch batteries for free, as I had heard mixed opinions on this topic. After doing some research, I discovered that Walmart does offer watch battery replacement services, but they are not free. The cost for this service varies depending on the type of watch and battery required. It's important to note that not all Walmart locations provide this service, so it's a good idea to call your local store to check if they offer it. Overall, while it's not free, Walmart can be a convenient option for watch battery replacement if your local store provides the service.