XL-2.5 Setup Programming
(Calibrating your ESC and transmitter)
Read through all of the programming steps before you begin. If you get lost during
programming or receive unexpected results, simply unplug the battery, wait a few
seconds, plug the battery pack in, and start over.
1. Disconnect one of the motor wires between the XL-2.5 and the
motor. This is a precaution to prevent runaway when the speed
control is turned on before it is programmed.
2. Connect a fully charged battery pack to the XL-2.5.
3. Turn on the transmitter (with the throttle
at neutral).
4. Press and hold the EZ-Set button (A).
The LED will first turn green and then red.
Release the button.
5. When the LED blinks RED ONCE. Pull the
throttle trigger to the full throttle position and
hold it there (B).
6. When the LED blinks RED TWICE. Push the
throttle trigger to the full reverse and hold it
there (C).
7. When the LED blinks GREEN ONCE, programming is complete.
The LED will then shine green or red (depending on Low-Voltage
Detection setting) indicating the XL-2.5 is on and at neutral (D).
XL-2.5 Operation
To operate the speed control and test the programming, reconnect the motor wires
and place the vehicle on a stable block or stand so that all of the driven wheels are
off the ground.
Note that in steps 1-8 below, Low-Voltage Detection is DISABLED (factory default) and the
LED shines red. If Low-Voltage Detection is ACTIVATED, the LED will shine green instead of
red in steps 1-8 below.
Never use LiPo batteries while Low-Voltage Detection is disabled.
1. With the transmitter on, press and release the EZ-Set button. The LED will shine
RED. This turns the XL-2.5 on. If you press and release too quickly, you may hear the
steering servo jump but the LED may not stay on. Simply press the button again
until the LED shines RED and then release.
2. Apply forward throttle. The LED will turn off until full throttle power is reached. At
full throttle, the led will shine RED.
3. Move the trigger forward to apply the brakes. Note that braking control is fully
proportional. The LED will turn off until full braking power is reached. At full brakes,
the LED will shine RED.
4. Return the throttle trigger to neutral. The LED will shine RED.
5. Move the throttle trigger forward again to engage reverse (Profile #1). The LED will
turn off. Once full reverse power is reached, the LED will shine RED.
6. To stop, return the throttle trigger to neutral. Note that there is no programmed
delay when changing from reverse to forward. Use caution to avoid slamming the
speed control from reverse to forward. On high-traction surfaces, this could result
in transmission or driveline damage.
7. To turn the XL-2.5 off, press and hold the EZ-Set button for 1½ seconds or until the
red LED turns off.
8. The XL-2.5 is equipped with thermal shutdown protection to guard against
overheating caused by excessive current flow. If the operating temperature
exceeds safe limits, the XL-2.5 will automatically shut down. The LED on the face
of the XL-2.5 will rapidly blink red, even if the throttle trigger is moved back and
forth. Once the temperature returns to a safe level, the XL-2.5 will once again
function normally.
XL-2.5 Profile Selection
The speed control is factory set to Sport Mode (100% forward, brakes, and reverse).
To disable reverse (Race Mode) or to allow 50% power (patent pending Training
Mode), follow these steps. The speed control should be connected to the receiver
and the transmitter adjusted as described previously. The profiles are selected by
entering the programming mode.
ESC Profile Description
Profile #1 (Sport Mode): 100% Forward, 100% Brakes, 100% Reverse
Profile #2 (Race Mode): 100% Forward, 100% Brakes, No Reverse
Profile #3 (Training Mode): 50% Forward, 100% Brakes, 50% Reverse
Selecting Sport Mode
(Profile #1: 100% Forward, 100% Brakes, 100% Reverse)
1. Connect a fully charged battery pack to the XL-2.5 and turn on your transmitter.
2. With the XL-2.5 off, press and hold the EZ-Set
button until the LED turns solid green, then solid
red and then begins blinking red (indicating the
Profile numbers).
3. When the LED blinks RED ONCE, release the
EZ-Set button.
4. The LED will blink and then turn solid green (Low-
Voltage Detection ACTIVE) or red (Low-Voltage
Detection DISABLED). The model is ready to drive.
Selecting Race Mode
(Profile #2: 100% Forward, 100% Brakes, No Reverse)
1. Connect a fully charged battery pack to the XL-2.5 and turn on your transmitter.
2. With the XL-2.5 off, press and hold the
EZ-Set button until the LED turns solid green,
then solid red and then begins blinking red
(indicating the Profile numbers).
3. When the LED blinks RED TWICE, release the
EZ-Set button.
4. The LED will blink and then turn solid green
(Low-Voltage Detection ACTIVE) or red (Low-
Voltage Detection DISABLED). The model is
ready to drive.
Selecting Training Mode*
(Profile #3: 50% Forward, 100% Brakes, 50% Reverse)
1. Connect a fully charged battery pack to the XL-2.5 and turn on your transmitter.
2. With the XL-2.5 off, press and hold the
EZ-Set button until the LED turns solid green,
then solid red and then begins blinking red
(indicating the Profile numbers).
3. When the LED blinks RED THREE TIMES, release
the EZ-Set button.
4. The LED will blink and then turn solid green
(Low-Voltage Detection ACTIVE) or red (Low-
Voltage Detection DISABLED). The model is
ready to drive.
Note:
If you missed the mode you wanted, keep the EZ-Set button pressed down and
the blink cycle will repeat until the button is released and a Mode is selected.
LED Codes and Protection Modes
• Solid Green:
XL-2.5 power-on light. Low-Voltage Detection is ACTIVATED (LiPo
setting).
• Solid Red:
XL-2.5 power-on light. Low-Voltage Detection is DISABLED (NiCad/
NiMH setting). Never use LiPo batteries while Low-Voltage Detection is
disabled.
• Fast Blinking Red:
The XL-2.5 is equipped with thermal shutdown protection
to guard against overheating caused by excessive current flow. If the operating
temperature exceeds safe limits, the XL-2.5 will automatically shut down. Let
the XL-2.5 cool. Make sure your model is properly geared for the conditions.
• Slow Blinking Red (with Low-Voltage Detection on):
The XL-2.5 has entered
Low-Voltage Protection. When the battery voltage begins to reach the
minimum recommended discharge voltage threshold for LiPo battery packs,
the XL-2.5 will limit the power output to 50% throttle. When the battery voltage
attempts to fall below the minimum threshold, the XL-2.5 will shut down all
motor output. The LED on the speed control will slowly blink red, indicating a
low-voltage shutdown. The XL-2.5 will stay in this mode until a fully charged
battery is connected.
• Fast Blinking Green:
The XL-2.5’s LED will blink fast green if Throttle Neutral
Protection is activated, or if the speed control is not receiving a signal. Make
certain the speed control is properly plugged into the receiver and the
transmitter is switched on. If this does not restore normal operation, then the
XL-2.5 is indicating the transmitter’s Throttle Trim is incorrectly set. Reset the
throttle trim to the “0” position.
• Flashing Red and Green:
The XL-2.5 has entered Over Voltage Protection. If a
battery with too high voltage (3S LiPo) is used, the XL-2.5 will go into a failsafe
mode. The XL-2.5 is only compatible with 2S LiPo.
Green to Red to Off
Release
One blink Red
Solid
Green to Red to Off
Release
Two blinks Red
Solid
Green to Red to Off
Release
Three blinks Red
Solid
*Patent Pending
A
Green then Red
Once Red
B
Twice Red
C
D
Solid
