With new notebooks, the warranty on the battery depends on the manufacturer. This can vary from, for example, 6 months to 12 months. All our used and second-hand laptops come with a warranty of at least 3 months on the battery. This means that during these 3 months the battery must be able to last for at least 30 minutes under normal user conditions. Because of this you know for sure that you also buy quality with a used laptop.