battery 92P1127 and 92P1139

[teetee]

I have a Z61M that uses 92P1127 battery(6cell 5200mAh), I tried to order the correct battery for it from ebay but the first one I ordered is not compatible:
http://www.ebay.com/itm/200743822457?ss ... 1439.l2649

They look similar to each other but the notches on both sides of the batteries are different, which result in one fits my laptop (my old one) and the other one doesn't fit.

Here are some photos (my old one is the bottom one):
I have a Z61M that uses 92P1127 battery(6cell 5200mAh), I tried to order the correct battery for it from ebay but the first one I ordered is not compatible:
http://www.ebay.com/itm/200743822457

They both look similar but the notches on both sides of the batteries are different, which result in one fits my laptop (my old one) and the other one doesn't fit. It seems the one I got is compatible with FRU 92P1139.

Here are some photos (my old one is the bottom one in the photos):
http://tinyurl.com/d3ap6sh
http://tinyurl.com/ctxr54p

Where can I find the correct battery for my Z61m with similar prices (~$20) or not much more expensive? It seems all ebay sellers think 92P1127 and 92P1139 are the same but only 92P1127 fits my laptop.

[ajkula66]

If you don't mind the battery sticking out, get a 9-cell for the T60/w500...unlike the 6-cell, these fit 100 percent.

And try not to buy a generic...your ThinkPad deserves better...try forum's marketplace...

[RealBlackStuff]

If you look in the battery bay on the short side where the CD is, you see a small, upstanding ridge 1/4" long.
If you remove that ridge, the standard T6x 6-cell batteries will also fit.