AC Adapter equivalence??

["Chuck Blaisdell" <cblaisd@mail.tdl.com>]

My ThinkPad 701 C uses an AC Adapter (P/N 04H6136=FRU04h697) which has
an output of 16 volts, 1.8a.

My new 380ED uses an AC Adapter (P/N 85G6709 = FRU#11J9992)which has
an output of 16v, 2.2a

The plugs into the computer are exactly the same.  The 701C has either
an NiCad or NiMh battery; the 380ED has an LiIon.

You probably see the question coming:  Can I use the 701C adapter on
the 380ED, despite the slightly lower amperage?  What are the
electrical/electronic considerations here?  I understand the warranty
considerations should I decide to do so.

Thanks.