CWK 7800mAh 9 Cell New High Capacity Battery for ASUS A31-K53 A32-K53 A41-K53 A42-K53 A43 A53 K43 K53 X43 ASUS K53TA-A1, K53TA-BBR6, K53U-A1, K53U-DH21, K53U-RBR5, K53U-RBR7 Asus A32-K53 A42-K53 K53B K53E K53F K53SJ K53S/E K53SD Asus X54L A53E K53E K53B K53F K53J K53S K53SD A32-K53 ASUS A53E A53S A53Z K43E K43S K53E K53S K53T ASUS A32-K53 A42-K53 X53S X53SV Series (2011 model) Asus A32-K53 A42-K53 X43 X44 X53S X54 X84 X43B X43BY USA 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!