B31N1429 48Wh Battery for ASUS K501L K501U A501L K501LB K501LX K501UBThis replacement battery is compatible with multiple ASUS laptop models including the K501L, K501U, A501L, K501LB, K501LX, K501UB, K501UQ, K501UX, K501UW, and R516 series, as well as V502 and FX51 models. It features a voltage of 11.4V with 48Wh capacity (4240mAh) using lithium-ion technology. The battery is brand new, made from high-quality materials with a top circuit board and smart chip for reliable performance and stable poundsProductdimensions4.7 x 1.2 x 10.6 inches