İs it normal from %18 to %6 in 5 second battery life and battery cut power ?
Not old or damaged battery.  10 meter away and 2-3 meter height far away from me.

Hi. Thank you for inquiry. It is not normal that the battery drains from 18% to 6% in seconds. Can you please try to completely drain the battery of you DJI Phantom 4 Advantage and then please fully recharge the battery. After this process please observe if the issue will still persist. Have a safe and happy flying.

Had it been sitting a while after your last flight?  Your reading was probably not correct.

İ used my batteries 3 circle today. Last flight i had crash because of it.

DJI Stephen Posted at 2018-10-29 07:27
Hi. Thank you for inquiry. It is not normal that the battery drains from 18% to 6% in seconds. Can you please try to completely drain the battery of you DJI Phantom 4 Advantage and then please fully recharge the battery. After this process please observe if the issue will still persist. Have a safe and happy flying.

tried again this time %18 to%11 in seconds and cut the power on %11 battery . is it under warranty?

volkan61 Posted at 2018-10-30 01:42
tried again this time %18 to%11 in seconds and cut the power on %11 battery . is it under warranty?

Hi there, I'm really sorry to hear that. Please provide you serial number so that I can check the warranty of you battery. Thanks for your support.