Bay Valley Parts&reg; ASUS New Replacement A32-K53,A42-K53,A43EI241SV-SL,A31-K53 Laptop Battery for Pro5PE,Pro5PS,Pro5PSJ,Pro8G,Pro8GB,Pro8GBR,Pro8GBY, Pro8GE, Pro8GSA,Pro8GSD,Pro8GSJ,Pro8GSM,Pro8GSV,Pro8GS,Pro8GTA,Pro8GTK,Pro8GT,Pro8GU,X43,X43B,X43BR,X43BY,X43E,X43S,X43SA,X43SD,X43SJ,X43SM,X43SV,X43T,X43TA,X43TK,X43U,X43EC,X43EE,X44,X44C,X44H,X44HR,X44HY,X44L,X44LY,X44E,X44EI,X53,X53B,X53BR,X53BY,X53TA,X53TK,X53T,X53U,X53Z,X54,X54C,X54H,X54HR,X54HY,X54L,X54LY,X53X,X53XC,X53XE,X54X,X54XI,X54XB,X5P,X5PE,X5PS,X5PSJ,X84,X84C,X84H,X84HR,X84HY,X84L,X84LY,X84E,X84EI,X84EB(9-cells Li-ion 10.8V 7800mAh) with 1 year Warranty