SLE 20V 4.5A AC Adapter Battery Charger Power Supply for Lenovo ThinkPad X1 Carbon Touch Ultrabook 45N0236, 45N0237, 45N0238, 45N0239 0B46994, 0B46995, 0B46996 AC Input: 100 ~ 240V 50~60Hz,DC Output: 20V 4.5A 90w Laptop Charger AC Adapter Power Supply with US Plug Power Cable Fit Model: 45N0236, 45N0237, 45N0238, 45N0239 0B46994, 0B46995 0B46994 20V 4.5A 90W AC Adapter for Lenovo Thinkpad USB with Power Cord Lenovo ThinkPad 90W AC Adapter (0B46994). This charger is compatible with all the models in the title and description, in addition to many others.