Hello my name is***** will be happy to show you where to get a replacement battery. Are you meaning the battery for the e7220?
Here is a link to a possible compatibility for your machine please let me know if that picture looks like your battery.
http://www.ebay.com.au/itm/6-Cell-Battery-For-Medion-Akoya-E6221-E6222-E6228-E7201-E7220-E7222-A32-A15-new-/111727927147?hash=item1a0380df6bperfet That is a link for the perfect match battery for the model number you gave me. If you have any further questions please let me know. Don't forget to leave positive feedback using the star rating system it is how we are compensated for our time and information. Thank you.