WTB - Nine Cell Battery

[ZaZ]

I have a R60 which is coming along nicely. After about a year and a half of use, the battery is getting a little long in the tooth. I'd like to pick up the nine cell battery to replace my original six cell battery. Whenever I go onto Pricegrabber, eBay, etc,, I have a difficult time distinguishing the knock offs from the Lenovo made batteries. I would prefer to buy a new Lenovo made battery. The battery is obviously expensive from Lenovo, but I think the ones that are selling for less than half that are probably third party made batteries. Anyone got any tips on how to tell the difference? Thanks for any help.

[Brad]

YGPM