DJI Inspire 1 Black Edition Battery Bundle. Includes 2x TB47 Batteries (Black) + Battery Heater (Black) + eDigitalUSA Cleaning Kit DJI Inspire 1 Black Edition Acessory Bundle Capacity: 4500mAh. Max flight time: approximately 18 minutes. Only compatible with the Inspire 1 Series The Inspire 1 Battery Heater helps to exert the optimum battery performance by heating the battery to a more suitable temperature (above 5  C) before flight, enable the users flying their Inspire 1 in a more reliable way.