T540p Battery options.

[Quardah]

Hi.

I have the 9 Cell battery (57++ 99Wh) right now and my overall battery life is a little less than expected for my daily live.

Here it says the T540p supports slice battery but i cannot find which model would fit.

Also, i know that there used to be an ultrabay battery for the T420s and T410s (THIS). Is there any available for the T540p as well?

I need more juice

Thanks.