Enhance your drone flying experience with our 3PCS 1800mAh 3.7V UAV Lithium Battery set, designed to provide reliable power and convenience for your S99MAX 811 K11 drones. This comprehensive package ensures you have the energy you need for extended flights and seamless performance. Long Lasting Power Supply: Each quadcopter lithium battery in this set offers long-lasting power, ensuring your drone stays airborne for longer periods. The included plastic case provides essential protection, keeping your batteries safe and secure when not in use. Reliable Compatibility: These batteries are specifically designed for S99MAX 811 K11 drones, guaranteeing perfect compatibility and optimal performance. Enjoy peace of mind knowing your drone will operate smoothly with these tailor-made power sources. High Performance Lithium Battery: Constructed with premium lithium cells, these UAV batteries deliver consistent and reliable power. Experience uninterrupted flights with the assurance of high-quality energy output, allowing you to focus on capturing stunning aerial footage. Convenient and Portable: The lightweight design of these batteries makes them easy to carry, so you can take them wherever your adventures lead. Enjoy extended flight times without the burden of heavy equipment, making your drone experience more enjoyable and flexible. Durable Construction: Made with robust ABS materials, these remote control UAV batteries are built to last. Their durable construction ensures a long service life, providing continuous use and reliability for all your drone missions. Equip your S99MAX 811 K11 drones with this 3PCS battery set and experience the difference in power, performance, and portability. Whether you're a hobbyist or a professional, these batteries are the perfect addition to your drone toolkit, ensuring you never miss a moment in the sky.