Warning on spektrum nx8

[myplanes21]

PLEASE HELP why does my spektrum nx8 transmitter shut down my ECS on umx turbo timber with a WARNING that reads ECS 8.2v & 0.0 a When I’m using a 7.4 V lipo. Flew with the same batteries same charger with a DX6e over over 30 times I never had this problem. I’m sure it’s something I am doing thanks ahead of time for your assistance

 

[tntpoof]

tx battery on nx8 is 1 cell not 2 .. 2000mah li-ion 3,7 volts
NX8 8 Channel DSMX Transmitter Only (SPMR8200): Spektrum - The Leader in Spread Spectrum Technology (spektrumrc.com)

 

[Greywolf74]

PLEASE HELP why does my spektrum nx8 transmitter shut down my ECS on umx turbo timber with a WARNING that reads ECS 8.2v & 0.0 a When I’m using a 7.4 V lipo. Flew with the same batteries same charger with a DX6e over over 30 times I never had this problem. I’m sure it’s something I am doing thanks ahead of time for your assistance

This is very confusing to read. Are you saying your running the radio on 2S lipo or the airplane is running on 2S lipo?