Feature: 1. Long Lasting Power Supply: Quadcopter lithium battery provides long lasting power and comes with a plastic case to protect the battery. 2. Reliable Compatibility: Designed specifically for S99MAX 811 K11 drones, ensuring perfect compatibility and optimal performance. 3. High Performance Lithium Battery: Built with premium lithium cells, the UAV battery delivers consistent and reliable power for uninterrupted flights. 4. Convenient and Portable: The lightweight design of the battery makes it easy to carry, allowing you to enjoy extended flight time wherever you go. 5. Durable Construction: The remote control UAV battery is made with ABS materials, ensuring durability and long service life for continuous use. Specification: Item Type: 1800MAH 3.7V UAV Lithium Battery Material: ABS Voltage: 3.7V Polymer Lithium Battery: 1800mAh x 3 (With Pure Battery Shipment) Applicable Models: For S99MAX 811 K11. Package List: 3 x Lithium Batteries 1 x Charging Cable Note: This product includes 3 drone batteries and one charging cable