I can't get my charge 4 to work with my phone it only will pair to Audio not Call. Normally when I pair headphones or speakers it has a switch for call and Audio. But when I pair it only has an audio switch

I bought a balanced charger and refreshed my batteries by running them through a discharge and then a balanced charge then when I plug the battery in the drone it shows 99% when i take off the battery power rill run down to 20% then slowly after about 5 minuets it runs down to 3% one time I was hovering about 3 feet up and the drone shut down and fell out of the sky now I’m afraid to fly it