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WATT METER
Battery
Pack
Discharge
Load
Battery
Charger
Battery
W A T T M E T E R
C U R R E N T : 3 5 . 1 1 A
P E A K ( C ) : 5 2 . 1 1 A
V O L T A G E : 2 5 . 1 3 V
W A T T A G E : 8 8 2 . 3 1 W
P E A K ( W ) : 1 3 0 9 . 2 W
E n e r g y : 8 2 W h
C h a r g e : 3 . 2 A h
W A T T M E T E R
C U R R E N T : 3 5 . 1 1 A
P E A K ( C ) : 5 2 . 1 1 A
V O L T A G E : 2 5 . 1 3 V
W A T T A G E : 8 8 2 . 3 1 W
P E A K ( W ) : 1 3 0 9 . 2 W
E n e r g y : 8 2 W h
C h a r g e : 3 . 2 A h
Battery
Pack
Speed
Controller
Motor
The following are some examples of meter connections. Many other
arrangements and uses are possible
Battery on SOURCE side, Electronic Speed Controller (ESC) and
motor on LOAD side, with ESC on, the meter shows the current into the
motor, voltage and power at the battery and accumulates the charge
(Ah) while the motor is running.
With a battery charger on the SOURCE side and battery pack on the
LOAD side, the meter shows the charging current into the battery, the
voltage and charging power at the battery and accumulates the charge
(Ah) into the battery.
W A T T M E T E R
C U R R E N T : 3 5 . 1 1 A
P E A K ( C ) : 5 2 . 1 1 A
V O L T A G E : 2 5 . 1 3 V
W A T T A G E : 8 8 2 . 3 1 W
P E A K ( W ) : 1 3 0 9 . 2 W
E n e r g y : 8 2 W h
C h a r g e : 3 . 2 A h
Testing Loads (e.g. motors)
Battery Charging
Battery Discharging
When the battery is discharged, the meter indicates the total charge
(Ah) the battery delivered to the load as well as current, voltage and
discharging power.
Effect of gearing and propeller size and shape on power consumption
and battery currents
Effects of modifications, age and damage on many electrical system
components
Clever hobbyists will discover new applications to further improve
electric model performance.
