This high-performance replacement battery is specifically designed for Lenovo laptops, featuring premium lithium-ion cells that deliver reliable power for your daily computing needs. With a voltage of 15.4V and a capacity of 77Wh (4950mAh), this battery provides extended runtime and consistent performance. The battery offers wide compatibility across multiple Lenovo models, making it a versatile replacement solution. Installation is straightforward with the included screwdriver and pry tool, allowing for easy DIY replacement. Built with Grade A battery cells, it incorporates advanced multi-layer protection mechanisms that safeguard against overcharging, over-discharging, short circuits, overcurrent, and overheating. The battery meets environmental standards and is manufactured to OEM quality specifications, ensuring stable and reliable operation. This replacement battery comes with professional support guidance to assist with installation when needed.