The graph is erased when the power source is disconnected. You can also manually reset the screen by entering “Yes” into the “Rst graph” parameter in the Warning Settings screen.
Warning Settings Screen
In this screen you can adjust warning thresholds according to your needs. Check out the specification of your receiver - or of your ESC if a BEC is used a power source, and your battery, and set warnings
Using a dedicated battery
Choosing a dedicated battery for powering your R/C system is often a better and safer choice instead of a BEC, but please bear in mind the following: a good battery maintains output voltage when a load is applied - or at least doesn’t fall below the nominal voltage. Note that with NiXX batteries - as the battery ages, so the voltage drops. Therefore, if you measure a large voltage drop during testing, it means that the load is too great or the battery is old or perhaps some component in the system has failed. Regarding the current limit; you should set max. current to around 95-100% of that specified by the manufacturer. If the load applied is below spec. and a steep voltage drop occurs it is better to change the battery as failure to do so could lead to a potentially catastrophic battery failure.
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