battery multistar

So i took the solo for a flight the battery went down in seconds , later i put the battery to charge i took it out for another flight and from the normal 10 / 14 minute flight time down to only 2 minutes max. two days later i charge the battery again took the drone out and just went up about...

Did a quick flight test of my Solo flying off just the multistar. Full functionality except battery telemetry and using the Fly button for TO. Used Tower's Arm and Takeoff to get airborne then could use either controller for flight. (hard to film and fly at the same time!) Now, if someone can...