RCstyle DJI Spark Non-Slip Battery Strap Lock Securing Tie Works for DJI Spark Drone Battery. Non-Slip fixator-Holds DJI Spark Battery in place during the flight or transportation. Nice quality, light weight and easy to use.won't influence charging the drone with it. Securing the battery with this buckle,avoid the crashing as the battery fall off during the flight. DJI Spark drones are not included.