We have all of your Gateway laptop battery needs covered for your ML Series. Unfortunately laptop batteries, including Gateway ML Series laptop batteries, will not last forever. When you need to replace it we can provide you with a quality, OEM-equivalent laptop battery for a fraction of the cost. We use name-brand Li-Ion cores and quality internals and components in our Gateway ML Series laptop battery replacements. We don't offer refurbished or re-conditioned products; all of our laptop batteries are brand-new. We can offer lower prices than OEM because we are in control of the manufacturing. All Gateway ML Series laptop battery purchases come with the satisfaction of a 30-day money back guarantee and one-year replacement protection.