If all you want is the cable, there are much cheaper deals on eBay. There is an auto charger for $12.
Edited to remove picture -- way too big. Here's the link:
much appreciated russ!! I'm after a normal charging cable for the connector only. I'll look into ebay for that part, thank you for the link. I want to get that connector soldered to a cable that will connect to my backpack's battery though but your suggestion will definitely bring my cost down.