Compatible with multiple Roomba i Series models. Integrated BMS for efficient power management. Robust construction ensures longevity and reliability. Easy installation for a seamless upgrade. This is only a shell and protection board, there is no battery inside. This product is designed to enhance the performance of your Roomba i Series vacuum cleaner. With its integrated battery management system, it optimizes power usage for longer cleaning sessions. The robust construction guarantees durability, making it a reliable choice for your cleaning needs. Installation is straightforward, allowing for a quick upgrade without hassle. Please note that this item is a shell and protection board only, and does not include a battery. Color: As Shown Material: ABS+PCB Package Contents: 1 battery casing kit 1 protection board