Junius,

Yes this Battery Charger simply 'plugs' into
the standard 120 Volt AC Wall Outlet.

Looks like a Wall Wart with a Pair of Screw Terminals
to connect the DC Output Feed Wires going to the Battery.

Wall Side - Back View
http://www.gruber.com/images/ebay/55-805000-a.jpg

Front View
http://www.gruber.com/images/ebay/55-805000-b.jpg

DC Output Feed Wires
http://www.gruber.com/images/ebay/55-805000-c.jpg


hope this helps ~ RHF