X60 batteries report as good but are not.

[budgetcomp]

Hi,

I have a bunch of X60 batteries that I am testing. Some of them come up as 80 to 90% charged. I get that nice little blue icon. But if I disconnect the AC power source the laptop immediately turns off. Is this particular to this model or thinkpads in general? Do these batteries have any hope or should I just throw them out?

Thanks for any info.

- Steve