Thinkpads Forum

I've looked under accessories on the Lenovo website, but cannot seem to find an A/C adapter that is listed as compatible with the T400. Searching on the part number for the original A/C adapter that came with my T400 yields nothing.

The one that looks like it ought to work is the 90W P/N 40Y7659, but the website description lists several ThinkPad models that one is supposed to be compatible, and the list does not include the T400.

How do I find the one I need?

Any 20v adapter should work. That would include the 90w and the 65w. You could also get the AC/DC model that would also work in your car or maybe an airplane too.

Brad