THIS ITEM IS NOT COMPLETE CHARGER so do not buy it if you have misplaced your old charger. This item is for those who are able to do simple electronic repairing/ diy stuff at home. High Quality Laptop chargers dc power cables for DIY purpose. Suitable for plug/wire damaged laptop/ tablet/ pc power adapter repairs. If your dog chewed your charger cable and internal wires has been exposed than this could be easy solution to save your original charger. During installation please make sure the polarity of wires is correct. Any question or confusion please call us direct at any time or day include weekends and bank holidays and we will be happy to help you. Thank you