TechOrbits DJI Phantom 3 Drone Battery Phantom 3 Standard Professional Advanced Superior Components: We use the best Li-Polymer cells in the world; TechOrbits average battery rating is 4.5 stars out of 5 Longest Warranty: TechOrbits batteries are built to last; that's why we cover our batteries with an industry best 3 years warranty Capacity:4400mAh; Volts: 15.2V; Li-Polymer Integrated power management and balanced charging capability Over 1 million+ happy customers since 2010