This is a High-Quality Harness for Lipo Batteries With XT90 Connectors. This harness can be used to connect two battery packs of the same capacity and same voltage to increase the overall capacity of the battery pack. The harness can be helpful in the drone application where you can increase flight time of your drone just by adding a extra battery in parallel to your existing battery. Applications: Robotics UAV and Drone Features: High-Quality Connector. Designed for heavy-duty. High Power Application. Package Includes: 1 x SafeConnect XT90 Harness for 2 Packs in Parallel SKU: PGI-00873946 Category: Connector