Asus F455L Replacement Laptop Battery (C21N1401)

Asus F455L replacement laptop battery (C21N1401) is a high-quality lithium-ion battery designed for Asus F455L and related X455 series laptops including X455LA, X455LD, X455LF, X455LJ, A455L, A455LD, and compatible F455LD variants. It delivers stable 7.6V output and reliable backup power for everyday computing tasks such as browsing, office applications, media playback, and general productivity use. This battery is engineered to match original specifications ensuring proper fit, compatibility, and seamless installation in supported Asus F455L chassis designs. It is compatible with part numbers C21N1401 and PP21AT149Q-1 depending on configuration, making it a widely used replacement option across the X455/F455 series. The battery includes integrated safety protections such as overcharge protection, short-circuit prevention, and thermal stability to ensure safe and long-lasting performance. Ideal for restoring original battery life and improving portability in Asus F455L series laptops.