Last year I purchased a portable battery charging device to keep in my
car in case I need to jump-start by myself.  It is by Xantrex and is
called Portable Power 300C.  It has jumper cables and something to add
air in the tire (which saved my life several times already).  The
problem is I have stupidly lost the AC charger that charges the unit
when plugged into an outlet in my house.  I have no clue how to replace
this, although I'm sure I can buy something similar.  I just don't
remember what it looks like or what it would be called.  The
specifications call it: "AC charger bulk charging current (max)500mA".
Could someone please tell me what this would be called in a store and
what I should look for?  I can't find any phone number for the company.

My email, if you want to email me, is Niatum@aol.com.
THANKS !!
-Nia-