Get longer battery life and improved performance with a new Asus c21n1335 Battery pack. This Asus c21n1335 battery is compatible with the VivoBook S451LN, S451LB, R451LN, V451LA, R453LN, K451LA and A451LB models.
Note: Asus made two different batteries for the VivoBook S451 models. This is the 7.5 volt, 38 Whr version battery that replaces the Asus c21n1335 battery part number. Asus also made a 14 volt, 48 Whr version that replaces the B41N1304 battery part number. Here you can find the B41N1304 14v 48Whr battery.
Each battery is tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.
You can expect about 4 hours of run time with this c21n1335 battery when new, depending on your energy use.