Can a swollen battery be replaced within one year of use?
2 Answers
If a battery swells within one year of use, it generally cannot be replaced, as the warranty period is typically three months. Below are the specific reasons for battery swelling: 1. Long-term overcharging: This can cause the battery grid to fracture or deform, or the active material to expand, leading to swelling. 2. Blocked battery vent: Combined with overcharging, gas cannot escape, increasing internal pressure. This situation is extremely dangerous and may even cause an explosion. 3. Cracked battery casing: Air entering the battery reacts with moisture, decomposing into oxygen and hydrogen, resulting in swelling.
Last year, I also encountered a situation where the battery bulged within less than a year. When I tried to start the car, the engine wouldn't turn over. Upon opening the hood, I was shocked to see the battery had deformed. I immediately went to a nearby repair shop for advice, and they told me this is a common issue, with a high chance of getting a free replacement within the warranty period. Car battery warranties typically last at least one year, so if it fails within that time, the manufacturer or dealer is obligated to replace it at no cost. I showed them the purchase invoice, and after inspection, they promptly replaced the battery and even checked the charging system to ensure there was no risk of leakage. A word of caution: a bulging battery doesn't just affect starting—it can also pose safety hazards, such as short circuits leading to fires, so don't delay in addressing it. Try to avoid parking in high-temperature environments to extend battery life.
