The Lenovo Battery 4 Cell is a genuine replacement power source designed for compatible Lenovo laptops, ensuring reliable performance and extended usage time. This battery features a 4-cell lithium-ion construction with a capacity optimized for efficient energy delivery, supporting typical laptop operations for several hours on a single charge. It measures approximately 20.5 cm in length, 7.8 cm in width, and 1.9 cm in height, with a weight of around 280 grams, making it lightweight and portable for on-the-go use. The battery operates within a safe temperature range of 0°C to 45°C for charging and -20°C to 60°C for storage, adhering to standard safety protocols. It is engineered for durability, with a high cycle life that maintains consistent power output over time, reducing the need for frequent replacements. Compatibility is key, as it matches models requiring the FRU01AV438 part number, providing a seamless fit and easy installation without tools. Constructed with quality materials, it includes built-in protection against overcharging, short circuits, and overheating, enhancing device safety. This product is ideal for professionals and students who depend on their laptops for daily tasks, offering a dependable power solution that integrates smoothly with Lenovo systems. It supports various power states, including standby and hibernation, to conserve energy when not in active use. The battery undergoes rigorous testing to meet industry standards, ensuring long-term reliability and stable voltage output. For optimal performance, it is recommended to follow standard charging practices, such as avoiding full discharges and storing in cool, dry conditions. This replacement part helps extend the lifespan of your laptop by providing consistent, efficient power, making it a practical choice for maintaining productivity in office, educational, or home environments.