Taranis telemetry- what went wrong?
Posted: 16 Aug 2021, 19:58
Ok here is a sorry tale. I like to do quite long flights so recently flew my Grunau Baby for nearly an hour. Towards the end I had that horrible feeling we have all had where the model is suddenly not following instructions. To look on the bright side, the crash was on land, not sea so could have been worse. Post crash analysis shows a flat battery do here are the questions:
It was a Panasonic Enyloop 4.8v nmhi. After the crash it showed 4.1v but a mate with a decent battery checker put that on and it showed zero capacity. First question is what is the telemetry on the tx showing? I assumed (ha!) That 5 bars was good 4 ok but I'd have to worry at 1 or 2 bars. I am now wondering if 1 bar = 1 volt? So 5 is good, 4 is disaster? Can I actually get the voltage displayed
Second question is about electricity, my understanding of which is limited. I know v x a = watts which is the power. Analogous to a water pipe, volts is pressure and amps the capacity or charge, so a big wire (pipe) has less resistance and potentially more power. So... if capacity of battery is zero how do I still have 4 volts?
Finally, is it possible to get a battery checker to avoid this again? Any recommendations?? Any advice gladly received.
It was a Panasonic Enyloop 4.8v nmhi. After the crash it showed 4.1v but a mate with a decent battery checker put that on and it showed zero capacity. First question is what is the telemetry on the tx showing? I assumed (ha!) That 5 bars was good 4 ok but I'd have to worry at 1 or 2 bars. I am now wondering if 1 bar = 1 volt? So 5 is good, 4 is disaster? Can I actually get the voltage displayed
Second question is about electricity, my understanding of which is limited. I know v x a = watts which is the power. Analogous to a water pipe, volts is pressure and amps the capacity or charge, so a big wire (pipe) has less resistance and potentially more power. So... if capacity of battery is zero how do I still have 4 volts?
Finally, is it possible to get a battery checker to avoid this again? Any recommendations?? Any advice gladly received.