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• Never charge batteries in extremely hot or cold places (recommended between
40–120° F or 5–49° C) or place in direct sunlight.
Li-Po cells should not be discharged to below 3V each underload. In the case of
the Li-Po battery used for the Champ, you will not want to allow the battery to fall
below 3V during flight.
The Champ receiver unit features a soft low voltage cutoff (LVC) that occurs
when the battery reaches 3V under load. When the soft cutoff occurs, the ESCs
of the receiver unit reduce power to the motor (regardless of the power level
set with the throttle stick) in order to prevent the voltage of the battery from
dropping below 3V. This power reduction usually requires you to land the model
immediately, at which point you should power down the model and unplug the
flight battery. While it is possible to power the model up and to fly again after the
soft LVC occurs, this is NOT recommended as this will over-discharge the battery.
Continued discharging to the soft LVC will cause permanent damage to the
Li-Po battery resulting in lost power and duration during subsequent flights,
or failure of the battery entirely.
Continued attempts to further discharge the battery may also result in loss of
control while the motor is running, as the voltage may drop below the minimum
operating voltage of the receiver and the other electronics.
Also, you should not fly to the soft LVC every time you fly. Instead, you should be
aware of the power level of the battery/airplane throughout the flight, and if at any
time the airplane begins to require more throttle than typical to maintain flight,
you should land the airplane immediately. Routinely discharging the battery to the
soft LVC can still cause permanent damage to the battery.
Note: Battery performance can suffer greatly in cooler temperatures. It is
recommended the batteries be warm before flight.
First Flight Preparation
Please note this checklist is not intended to be a replacement for the content
included in this manual. Although it can be used as a quick start guide, we
strongly suggest reading through this manual completely before proceeding.
❏
Remove and inspect contents
❏
Install 4 AA batteries into the battery charger
❏
Begin charging the flight battery
❏
Install batteries in the transmitter (as required)
❏
Test the controls
❏
Familiarize yourself with the controls
❏
Find a suitable area for flying
