Spektrum AR7100 7
EN
Battery Capacity
It is important to select a battery that has more than adequate capacity to
provide the necessary flight time. Our staff has been recording in-flight
data to determine typical current consumption of aircraft in flight. The
following graph illustrates a T-REX Nitro 600 during aggressive 3D flight.
Helicopter -T-REX 600N
Servos - 3-JR8717’s, 1-8900G (rudder), 1-8317 (throttle)
Batteries - 1- 2100mAh 2-cell 7.4-volt LiPo
Engine - YS50
Flight envelope - Aggressive 3D
Average current - 1.15 amps
Peak current - 3.33 amps
Milliamps used per 8 minute flight- 173mAh
In the above example the average current was 1.15 amps, which calculates
to 153mAh per 8 minutes (typical flight length). It’s recommended that
only 60% of the available capacity be used to ensure plenty of reserve
battery capacity. In this example using 2000mAh batteries 2000 x 60% =
1200mAh (available usable capacity) divided by the capacity used per 8
minute flight, 153mAh would allow up to 7 flights of 8 minutes each.
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