Features: 3.7V 2000mAh rechargeable lithium polymer battery and battery charger included. Pure cobalt material ensures long service life and durability. High-performance remote control drone battery provides extended flight time. Offers a reliable power solution for uninterrupted flying experience. Compatible with KY601S, H11D, and H11C RC quadcopters. Specifications: Product Name: Drone Battery/Charger Material: Pure Cobalt Size: Approximately 4.8 x 3 x 0.9 cm / 1.88 x 1.18 x 0.35 inches Battery Capacity: 3.7V 2000mAh (battery) or Charger (optional) Quantity: 1 Piece Note: Suitable for drones with battery dimensions of approximately 4.8 x 3 x 0.9 cm / 1.88 x 1.18 x 0.35 inches and matching connector type. Please allow 1-2 cm variation due to manual measurement. Color may vary slightly due to monitor display differences. Package Includes: 1 x 3.7V 2000mAh Battery or 1 x Charger (optional)