ASUS K501LB K501LX K501U K501UB K501UX Compatible Laptop Battery (B31N1429-G)
battery asus k501 - Newegg.com
B31n1429 Laptop Replacement Battery for Asus A501lb5200 K501lb K501lx K501lx-Nh52 K501uw K501u K501ub K501ux K501ux-Ah71 0b200-01460100 - China Battery for Laptops and Laptop Battery price