CWK 7800mAh 9 Cell Battery for ASUS X44C X44H X44L X84C X54C X54LY A53SC A53SK A53SV X43 A32-K53 X53E, X53SV,X53U,X53U X53E P54 P43EI P43E P43SJ P43S P53 P53E A32-K53 K53 K53E K53F K53S K53U A41-K53 Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 10.8 Volt (11.1 Volt compatible) Capacity: 7800mAh (Better than 6600mAh) 90 Day Money Back. Buy with confidence!