My Futaba 16SZ sometimes has a problem where it shows the Life battery drops very fast to 6.0 volts but the battery is just fine and was charged that day. I even did a discharge on the pack to make sure the capacity was still good and it was. When it happened I turned the radio off and then back on and it still did the same. Showed 6.6 volts and the went down to 6.0 within a few seconds. When I got home it was working ok. Have seen the radio do this about 4 times.

The radio is set to life pack. I am afraid that I will end up losing an expensive plane because of this.
Would send it to Futaba but it only does this at random and they may never see it happen.

Hi - if it is doing this with a fully charged pack then it is either a faulty pack or a software glitch. You can either grab a new pack (several after market packs available) or send it to service to get the TX checked.