Hi. I have a cinestar HL8 with 4012 t-motors and 15*5 props. I run all MK boards (newest). I use the QC 10.000 mAh 6S bats but with no extra weight (no gimbal, no camera) i only got around 8 - 10 min flying time. Today i put on my movi m10 and a RED camera. My combined weight was around 10 kg (i know its a lot for the motor/prop setup but should do) All i got was approximately 10 seconds of flying time before the alarm started buzzing and it started to descent. I read about people that get 15 min with gimbal+camera so i simply dont know what i am doing wrong. I charge the QC Bats with the hypirion charger. I was told by QC to set it to 10.000 mAh 6S 5C (when i checked the voltage on the bats after today. two was discharged to 18,5 - 19 V but two of them had only been discharged on a single cell. Where the rest of the cells still had 3,7 Volts.) I am confused so i hope someone can help me.