Feature:1. ACCURATE COMPATIBILITY: Designed specifically for XK X520 RC fixed wing airplane, this lithium battery offers accurate and reliable performance. Enjoy a seamless and optimized flying experience with a battery that is tailored to fit your aircraft perfectly.2. LIGHTWEIGHT AND PORTABLE: The compact and lightweight design of the battery makes it easy to carry and ensures optimal portability. With its lightweight construction, you can easily bring it wherever you go.3. LIPO MATERIALS: Crafted with premium materials, our RC battery offers long lasting durability and reliable performance. Its premium construction ensures stability and longevity, providing you with an exceptional flying experience.4. EXTENDED BATTERY LIFE: Our battery boasts a longer battery life, allowing for extended play and increased enjoyment with your RC fixed wing airplane. Spend more time in the air and less time worrying about recharging.5. ENHANCED SAFETY FEATURES: Our RC battery is equipped with built in overcharge and short circuit protection, ensuring the safety of the charging process. Fly with peace of mind knowing your battery is safeguarded against potential risks.Specification:Item Type: RC battery(only battery)Material: LiPoWeight: Approx. 57g / 2ozVoltage: 7.4V.Package List:1 x Battery