Okay I kow there are a few camera techo guys on here, so I thought I would cast the line out and see what comes back. My GF just bought a new camera for our trip to Burma / Vietnam in a months time. Anyway I thought it might be prudent to by a second battery in case the first one goes flat right when we are about to take a prize winning shot. THe camera is a Pentax that takes the D-L17 battery, which I understand is equivalent to a Fuji battery and a Canon battery (just with different model numbers). Anyway the retail on the Pentax direct replacement in Australia is $110. On Ebay there is one that is $7.90US: http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&category=64348&item=3866416025&rd=1&ssPageName=WDVW So im thinking, okay the cheaper one might be slightly more dodgy, but just for use in emergencies, would it do the job? Are there any inherent risks in using "third party" batteries like this? I assume there is potential warranty issues. I thought I would ask here before heading off the the digital camera forums (im not a member), but a search of those forums (that I could find) didnt turn up too much. If anyone knows where I can get information on this it would be appreciated.