Laptop Charger for&nbsp;Lenovo Thinkpad R400 R500 SL300 SL400 SL400C SL500 SL500C SL510 &nbsp;Compatible Replacement Notebook Adapter Adaptor Power Supply - Laptop Power (TM) Branded (UK Powercord and 12 Month Warranty) Replacement Laptop Charger US Power Cord Included Input: 100-240V Output: 20V 4.5A 90W