Where can I buy a slim line battery for the X61s?

[SailingAway]

Anyone know where I can still get one of these, aside from Lenovo directly? All the batteries on ebay are the extended kind with the cylindrical bumps on the bottom. If anyone has found a source for the slim variety, please post. Thanks.

[EOMtp]

Nobody has ever found batteries which fit Thinkpads which are form and functionally equivalent to the original batteries ... and it's unlikely that your experience will be different.

The more important point, however, is that these days $150 will buy you not only a new X61s battery (from Lenovo), but also an X200s machine. The X61s has nothing over an X200s, and the X200s runs three times longer on its slim battery than the X61s does on its.

See for yourself -- here are completed X200s sales on eBay:
http://www.ebay.com/sch/i.html?_odkw=%2 ... 9&_sacat=0