Choosing which prop/motor/ESC/battery combination works best for your multirotor is made much easier by using a power analyser like this one from SkyRc. While you can study spec sheets and use simulation tools like ecalc to help, there's no equivalent to actually getting to grips with the numbers yourself. With the WM-010 power meter you can measure; Current, Voltage, Peak Current (Amps), Peak Power (Watts), Minimum Voltage (Volts), Power (Watts), Energy (Watt-hours), accumulated charge (Amp-hours) and Temperature / Peak Temperature values in real-time.
The meter is easily connected; it simply sits in-line between your battery and device. So if for example you were testing the running efficiency of a prop, you would have the meter wired in between your speed controller and battery. If you were monitoring the performance of your battery charger, you would connect the unit between the battery and the charger. The meter is self-powered from the measured power supply so you don't need to worry about an additional power supply, but if you want to drop the supply voltage to 0v you can power it externally too. The meter is rated at up to 100amps and 60volts.
SkyRc have a reputation for making quality electrical products and this watt meter is certainty that. We've found it to be very accurate so naturally it’s our power meter of choice.
Measures energy (Wh), charge (Ah), power (W), current (A) and voltage (V)
Measures peak Amps, peak Watts, voltage minimum (sag), peak temperature.
Measures temperature in both Celsius & Fahrenheit (optional temperature probe is necessary)
Auxiliary battery to power watt meter for measurement down to 0V
Accurate & precise – 0.01 A current and 0.01V voltage resolutions
Rugged – handles 50 A continuous and 100 A peak at 60V
Small & light with a tough plastic case
Precision Alu-Chrom current sensing resistor, with only 0.001 Ohms resistance
Factory calibration stores constants in EEPROM to compensate for component tolerances
To measure the actual values of current (A), voltage (V) and power (W).
Ensure peak currents are within tolerance for your power system.
Check battery health and performance.
Evaluate R/C battery charging efficiency.
Charge put into and discharge from a battery.
Presence of voltage sags that cause components to operate out of specification.
Assist with the correct selection of propellor and test efficiencies.
Estimate running time for your model.
Check for wiring and connector power losses.
To verify the operating voltage of your flight pack under load and measure the quantity of charge drawn from the flight.