B21N1329 Laptop Battery Compatible for ASUS X403 X403M X403MA X503M X502CA X453 X453M X453MA X553 X553M X553MA F453 F453MA F553M P553 F553 D553M P 553 P553MA Series (7.6V 30Wh)

1.Our batteries have EC/FCC/RoHS certification to ensure their safety, and are equipped with preventive measures such as short circuit, overheating, and overload protection. 2.Our laptop batteries are made of top-notch notch materials and circuit boards to ensure their performance and durability. We only use high-quality batteries, which can guarantee up to 500 charging cycles 3.We have full confidence in the backup batteries of our laptops, and each battery comes with a 12-month warranty period.