Amazon.com: AC Doctor INC Asus Laptop Battery A31-K53 A32-K53 A32-K53S A41- K53 A42-K53 10.8 5200mAh Replacement : Electronics
Synergy Digital Laptop Battery, Compatible with Asus X53E-RH52 Laptop, (Li-ion, 11.1V, 4400mAh) Ultra High Capacity, Replacement for Asus 07G016H31875M, 0B20-00X50AS, A31-K53, A32-K53 Battery - Walmart.com
High Quality Asus X53S Replacement Battery | Laptop Battery Direct