Asus X54C-RB92 Battery Replacement - iFixit Repair Guide
6-Cell 10.8V 5200mAh Replacement Battery for ASUS 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 - Walmart.com
ASUS - X54H Battery | Complete Battery Source
Battery for Asus X54C-SX641V X54F X54HB X54H-BD3MA K84L Laptop 5200mAh 10.8V | eBay