/.02
Just go to Amazon.
My puppy decided to use my power cord as a chew toy.
I was going to replace it but had wanted a fancy Schmancy cord stripper for years, so I went to Radio Shack and bought one.
Stripped the wires, taped em together and this Saturday I will buy some liquid plastic and enclose the cord again.
Alternatively, you could try Radio Shack or Walmart for a Universal Charger. I picked one up for one of my flashlights and my GPS.
Batteries Plus also sells power cords. Their website sucks loudly but play with it and if they have what you want you can go to the local store and pick one up.
If you are near a Fry’s electronics they also sell replacements.