This Lumenier 16000mAh 4s 20c Lipo Battery with XT90 connector is perfect for RC vehicle lovers. It's great for powering larger aircraft and heavy - lift drones such as aerial photography rigs. The battery has the following specifications: Length: 182 mm, Width: 74 mm, Height: 40 mm, Weight: 1190 g, C - Rating: 20C (Burst: 40C), Connector: EC5. Due to shipping regulations, air shipping for this battery is not available. When ordering from the USA, ground shipping is the only option if your order contains a LiPo battery. Follow these important safety instructions: Only charge with a LiPo - compatible charger, monitor while charging, store in a safe non - flammable container, and never overcharge, over - discharge, damage, puncture, short - circuit, or modify the battery. Don't use a damaged LiPo battery.