This is where the current sensors are used. They actually have two functions:
A – The measurement of the current flowing currents in the drive, receiver or ECU Battery (in jets). Interesting, e.g. to optimize the drive (how much current my drive draws with which propeller) and to avoid overload situations. For example, in the basic setting of the model, blocking currents indicate incorrectly set servo travel.
B– The indication of the remaining charge, so to speak the “fuel gauge” for the battery. Especially when using modern high-performance LiPo batteries (e.g. Li-BATT FX), the remaining charge is actually indispensable, as these batteries keep the voltage almost constant for a very long time, but then “break in” within seconds. This means that the voltage-dependent monitoring, e.g. of the receiver battery, is no longer sufficient. Timers, too, can only be a rough aid.
The sensor is looped between the battery and the consumer, suitable high-current plug connections (with # 8 5404) or cables (with # 8 5404 or # 8 5405) are soldered to the soldering surfaces. The sensors are connected to receivers capable of telemetry or to another sensor within the MSB. With its basic function “Output of the current flowing current in A”, the sensor can be put into operation immediately, for example to measure the current of the electric drive.
After activating the charge counter with the RESET button on the top of the current sensor, you will not fly in the future more according to the timer, but rather according to the actual remaining charge of the drive battery. The current sensor becomes your electronic fuel gauge!
Protect your batteries from being discharged too deeply and thus prevent a shortened service life.