NEW 8Cell Battery for Asus A46 A56 K46CM S46C S56CA S550CA S505C A41-K56 A42-K56 | eBay
Amazon.com: Rome Tech CR2016 CMOS BIOS Battery for ASUS K56C / ASUS K56CA / ASUS S550C / ASUS S56C / ASUS S56CA / ASUS X201E - Laptop Backup 3V RTC CR 2016 Battery with 2 Wire Cable : Electronics
Asus VivoBook S550C battery,high-grade replacement Asus VivoBook S550C laptop battery from Malaysia(2200mAh,4 cells)
ASUS - E46C Series Battery | Complete Battery Source