For IBM ThinkPad R61li S220 SL500C X130e X200t X201t X61t AC Adapter Charger
Type: Laptop AC Adapter. Adapter Output: 20V 4.5A. Adapter Input: 100-240V~1.5A 50-60Hz. Laptop adapters from various other adapter manufacturers can be used as long as the specifications are similar to the existing adapter.