【Wide Compatibility】Power your entire Litheli U20 tool lineup with one battery. Designed for all U20 series power tools, this battery delivers stable, reliable performance for gardening, DIY projects, and everyday household tasks. 【45W USB-C Fast Charging】Equipped with a two-way 45W USB-C port, the battery doubles as a convenient power bank. Charge smartphones, tablets, drones, and other portable devices with fast, efficient power—perfect for work, travel, or outdoor use. 【High-Capacity 4.0Ah Performance】The 20V 4.0Ah lithium battery offers strong, long-lasting output for extended runtime. Its advanced battery management system ensures safe performance, consistent power delivery, and improved durability. 【Smart Battery Monitoring】Stay informed with real-time battery insights. Connect via the Litheli App over Bluetooth to check remaining power, temperature, usage history, and overall health. The built-in LED display provides instant status visibility at a glance. 【Multi-Tab Cell Technology】Advanced multi-tab cell design reduces internal resistance and enhances current flow, ensuring higher output with lower heat generation. This results in more efficient performance for both your tools and your mobile devices. U20 IPS SUPER BATTERY Ultra, 20V 4.0Ah Lithium Battery Pack with Multi-Tab Cell Tech, 45W USB-C Port, Bluetooth APP Control, Compatible with All Litheli U20 Tools.