BE&middot;SELL 11.1v 7800mah Laptop Replacement Battery for ASUS K53 K53E X54C X53S X53 K53S X53E A32-K53 A41-K53-12 months warranty Voltage:11.1V Capacity:7800mAh Brand New, Full 1 year warranty CE-/FCC-/RoHS-certified for safety