Lenovo Genuine 9 Cell Extended Life Thinkpad Battery 70++ ( Mfg p/n; 0A36303 - 70++ , Original Sealed Manufacturers Retail Packaging ) Brand Lenovo, Model 0A36303 / Genuine Lenovo product In the Factory Sealed Original Lenovo Retail Packaging. Lenovo 0a36303 9 Cell Extended Life / High Capacity Battery 70++ , Weighs 500 g (1.10 lb), Battery energy (Watt-hours): 94 Wh . Lenovo Thinkpad models : L412 , L420 , L430 , L512 , L520 , L530 , T410 ( not the T410S), T410i, T420 ( not the T420S) T420i, T430 ,(Not the T430S) , T430i, T510 (Not the T510S), T520 ( Not the T520S) , T520i, T530 , W510 , W520 , W530. Warning - ITEM IS NOT USED in the T410S, T410SI, T420S , T420SI, T430S, T430SI, E Series , X Series, Tablet notebooks, P Series , T440 Series , T450 Series . Lenovo model #'s are suffix specific Lenovo 9 cell extended life batteries will stick out of the battery compartment by 1 Inch.