Masione Replacement Battery for Ipod Classic 1st & 2nd Gen 80GB 120GB 160GB 616-0232 With Tools Brand New | Li-Polymer | 3.7 V | 850mAh Compatible with iPod Classic 1st & 2nd Gen 80GB/120GB/160GB This is an internal part and some minimal technical skills are required to replace it Tools are provided to open ipod and replace battery 30 days money back and 1 year warranty