The ASUS X540BA-RB94 X540B LAPTOP 10.8V 33Wh LI-ION BATTERY A31N1519 0B110-00390100M is a high-quality lithium-ion battery designed specifically for ASUS laptops. With a capacity of 2900 mAh and a voltage of 10.8V, this battery provides reliable power for your device. The sleek black design ensures a stylish and functional addition to your laptop. Compatible with models like ASUS X540BA-RB94 X540B, this battery is a perfect fit for your Asus laptop needs. Trust in the ASUS brand for quality and performance in your laptop accessories.