View online Operation & user's manual for Helipal Storm Drone 6 Drones or simply click Download button to examine the Helipal Storm Drone 6 guidelines 5) Check whether all parts of the drone are in good condition before flight. Do not fly with aging or broken parts. 6) Never overcharge LiPo batteries. Storm Drone 4 v3. with CC3D Flight Controller. USER MANUAL V1.0. Copyright@2015 HeliPal.com. All Rights Reserved. DISCLAIMER Please read this disclaimerNever leave the battery charger unattended during charging. 7) Never discharge batteries to below 3.3V per cell. 8) Remove batteries when not using the drone. [