All sales are final unless the battery is defective. We cannot approve a replacement if the battery is physically damaged in any way. If we get a physically harmed battery, we won't be able to return it. Be sure to Make contact with us at [email protected] for more information https://stiiizy-battery-starter-k20864.ka-blogs.com/88500873/rumored-buzz-on-stiiizy-starter-kit-black