Spec of my thinkpad is, ThinkPad X61s : Intel Core2 Duo processor L7500, 軽量12.1"(XGA), 指紋, 1GBx2, 160GB, MIMO(2x2), BT, 4セル拡張容量Battery windows vistaas described above, i think i am using this battery; http://www-06.ibm.com/jp/pc/…