Smart Power Replacement for Dell Vostro 3500 laptop battery, [6 cell, 11.10V,4400mAh,Li-ion], This battery compatible part number of Dell: 0TXWRR, 0TY3P4, 312-0997, 4JK6R, 7FJ92 Battery Type: Li-ion// Voltage: 11.10V/// Capacity: 4400mAh// Color: Black//Dimension: 255.50 x 51.00 x 20.00 mm//Weight: 388.30 g Product Type: Replacement Battery (Brand New) ///Condition: New, 1 year warranty!