1840mAH Battery for CF & PC Card Expansion Pack - ebay only $1.00?

[neccessary]

So far this new battery is only going for $1.00.
It's the 1840mAh battery that fits the expansion pack plus (either Compact Flash or PC Card).


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3030337500&category=15004&rd=1