• Mamba XLX2 Resource Page 2
  • Mamba XLX2 Resource Page - Line Drawing
  • Mamba XLX2 Resource Page - Diagram
Mamba XLX2 Quick Start
Mamba XLX2 Drivers Ed Guide
XLX vs XLX2 Comparison
Audible Alert Reference
Motor Quick Start
Mamba XLX2 Mounting Template
Video Resources
Castle ESC Calibration
Castle Data Logging


Product Use Statements
  • Individual transmitter signals for neutral, full throttle, and full brake vary. You must calibrate your Castle ESC so that it will operate effectively with your transmitter.
  • Anytime the ESC is powered up with a new transmitter or with different throttle channel settings, it will need to be calibrated to the transmitter’s throttle settings.
  • The ESC may also need to be calibrated after updating to new software via Castle Link.
Input Voltage:
  • Applying voltages higher than 33.6V will cause irreparable damage to your Mamba XLX2 controller.
  • DO NOT RUN HV CELLS (above 4.2v/cell) WHEN RUNNING AT MAX CELL COUNT (8s). This will exceed the 33.6v rating and will damage the ESC and not be covered by the warranty.
Battery Capacity Minimum:


  • The Mamba XLX2 is a high-performance controller; you must use high-discharge cells in your high-performance application to ensure vehicle performance.
  • MINIMUM battery capacity is 5000mAh and MINIMUM of 50C continuous discharge for general use
  • For extreme setups (speed/drag) we recommend a MINIMUM of 70C continuous discharge LiPo batteries.We have tested and recommend these brands for extreme setups: SMC True Spec Extreme V2 150C 6400mah, China Hobby™ CNHL GPLUS 6000mah  (white), Power Hobby Pro Lipo 100C 6000mah and Turnigy Graphene Panther™ 75C
  • If the batteries you are using contain input bullets you might consider upgrading to a direct wired pack as the bullets may not be able to handle the currents that the Mamba XLX2 ESC can push out. 
  • If you must disable low voltage cutoff to prevent the ESC from shutting down then your batteries are insufficient for your application. 3.2v/cell is the lowest a LiPo battery should ever be discharged under load. Utilize the data logging capability of the ESC to verify your batteries are not dropping below the cutoff voltage. Exceeding a LiPo batteries capabilities can lead to a catastrophic failure of the battery and/or ESC.
Wiring and Soldering:
  • High strand count silicone coated copper wire is essential with higher power electric power systems. Castle Creations' wire is lower resistance than the same diameter of solid copper, meaning more power gets from the batteries to the motor with less wasted as heat.
  • The ultra-high strand count and silicone coating means the wire is very flexible which prevents work hardening and breakage with use. 
  • Use a high quality soldering station. Soldering stations usually have a variable temperature control which lets you set the right amount of heat to be used. Too little heat will result in a cold solder joint; too much heat can seriously damage a component. The key factors in quality soldering are time and temperature. Our recommendation for the Mamba XLX2 is a temperature setting of 400° C (745° F). You want it hot and as short a time as possible. We use 250W soldering irons.
  • Use a high quality rosin core solder.  The rosin core solder is infused with flux which helps clean the surfaces you    are soldering for better adhesion.
  • Do not exceed more than 18 inches of total wire between the battery and ESC (this includes the wire already on the ESC and battery).
  • Do not solder wires directly to the circuit board. Doing so will damage the ESC and void the warranty.
  • Our wire is available for purchase and this link provides the appropriate wire gauge for your Castle ESC.  http://www.castlecreations.com/wire-application-chart
Connector Ratings Minimum:
  • The Mamba XLX2 requires the use of connectors designed for 150+ amps continuous. We have tested and recommend Castle 6.5mm Polarized, Castle 8mm Bullet, QS8 Anti Spark and QS10 Anti Spark
  • Do not use Deans, Traxxas, EC3/XT60, EC5/IC5, XT90/XT90s connectors in a MambaXLX2 setup
  • The Mamba XLX2 is capable of handling incredible amounts of power, your motor must also be up for the task. Always run your motor within the manufacturer’s specs. Monitor motor, battery, and controller temps carefully and never let the motor get above 200° F.
  • Excessive heat in the motor can damage the motor, the Mamba XLX2, and your batteries.
  • It is strongly recommended to not use the “Sensored Only” motor type option. The default “Smart Sense™” modes uses the sensors (if applicable motor is used) to start the motor smoothly. Once the motor is running the ESC stops using the sensors and reverts to sensorless operation. Note: "Sensor Only" has been removed from the ESC and is no longer an option as it served no purpose without the CHEAT mode.
  • Sensorless mode is more efficient resulting in cooler temperatures and potentially higher motor performance. Forcing the ESC to run in sensored mode the entire time will result in reduced performance and higher than normal temperature; this can lead to unnecessary strain on the ESC, motor and batteries.  There is no standard RC application in which sensored only mode is recommended.
  • When you are tuning a car expect some modifications in gearing to get it exactly where you want it.  The goal here is to not overheat the motor.
  • Check your motor temps – never let the motor get above 200° F - invest in an infrared thermometer so you can monitor temps easily.
  • You can also adjust MOTOR TEMPERATURE CUTOFF (with Sensored Motors Only) in Castle Link.  When this setting is enabled, the controller will shut off if the motor reaches the specified temperature as indicated by its internal temperature sensor.
  • We always recommend making small changes when gearing up.
Castle Link Settings:
  • During the optimization of your setup it is critical to check motor and ESC temperatures after making adjustment.
  • The heat limit threshold for Mamba XLX2 ESC is 200° F and Castle motors is 200° F. 
  • We recommend the use of the data log as you progress with the feel and power of the vehicle. You will be able to record real-time data such as motor RPM, battery current and voltage, ESC and motor temperature, throttle input, and more.
  • Download and analyze the collected data via Castle Link and make adjustments to maximize both performance and battery life.
  • Furthermore, we do not recommend using the same Castle Link settings from a previously installed Mamba XLX version. Start from scratch. This is how you learn your car and what it can actually handle. 
AUX Wire:
  • The AUX wire allows you to adjust a setting “on-the-fly” using an auxiliary channel on your receiver.
  • The AUX wire function is disabled by default and is programmable via Castle Link. Plug this wire into the auxiliary (#3/#4) channel on your receiver.
  • You MUST connect the AUX wire to an open channel on your receiver if running more than a single servo. If you have 2 servos, fans, and/or LEDs plugged into the receiver, you MUST connect the AUX wire to the receiver, even if you are not using the Auxiliary function. If only the ESC and a single servo are connected to the receiver, then you do not need to connect the AUX wire to the receiver.
  • You MUST disconnect the AUX wire from your radio before connecting to Castle Link. Failure to do so may result in damage to your Castle Link and/or computer.
Operating Environment
  • Although Mamba XLX2 is waterproof, it is not intended for operation while completely submerged in liquid.
  • Always rinse the ESC and motor with clean water after exposure to corrosives or dirt.
  • While the motor and controller may be waterproof, we suggest users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.
  • **The cooling fan must be removed prior to driving in wet conditions. It is not waterproof.

Technical Specs
Application Guidelines:
1:5th Scale vehicles weighing up to 42 lbs.

Vehicle Examples: Losi DB XL-E™, Losi Super Rock Rey™, Arrma Kraton 8s™, Arrma Outcast 8s™, Traxxas X-Maxx™. Note: Some vehicles may require aftermarket parts to allow ESC and/or motor fitment.
Input Voltage Range:
MIN: 3S LiPo, MAX: 8S LiPo 33.6V
Running Modes:
Sensorless, Brushed and SmartSense™ when paired with a Castle 4-POLE 12-SLOT Sensored Motor.
Reversible:Yes, but may be disabled for racing.
On/Off Switch:Yes, waterproof
Cooling Fan:Yes, factory equipped (50mm), fully removable** (See Product Use Statements)
Size:Length: 3.98” (101.2mm),  Width: 2.49” (63.3mm),  Height: 2.2” (55.8mm)
Weight (with wires):13.1 oz (371g)
Motor Connectors:
8mm female bullets
Items Needed for Operation:The Mamba XLX2 requires the use of connectors designed for 150+ amps continuous, such as Castle 6.5mm polarized or CC BULLET 8.0MM, QS8 8mm Anti Spark or QS10 10mm Anti Spark
Operating environment:
Waterproof design for all weather conditions (See Operating Environment Considerations)
Fully programmable Castle feature set using Castle Link USB adapter (coupon for free link included in package) and freely downloadable Castle Link Windows software, or the Castle Link App and a B-LINK Bluetooth Adapter (sold separately).
Telemetry Link Capable:
Yes, with Castle Creations Telemetry Link for S.BUS2 and Futaba T4PX, T7PX and T7PXR Transmitters.
Tech Tips:
The Mamba XLX2 has threaded mounting holes on the bottom of the ESC. There are four M3 mounting holes with a maximum depth of 5mm; they are spaced 46mm wide and 40.2mm long. Use this template for assistance in alignment and screw hole positioning.

For support, frequently asked questions, technical documents, and more, visit our support site.


Mamba XLX2 Accessories

Polarized Castle Connectors - 6.5mm Male Multi-Pack
  • USD $11.95 /EA
  • List Price USD $14.95 /EA
  • EA
  • Availability: This item is in stock.
Polarized Castle Connectors - 6.5mm Female Multi-Pack
  • USD $11.95 /EA
  • List Price USD $14.95 /EA
  • EA
  • Availability: This item is in stock.
CC Bullets - 8.0mm
  • USD $10.95 /EA
  • List Price USD $13.95 /EA
  • EA
  • Availability: This item is in stock.
Polarized Castle Connectors - 6.5mm Male / Female Set
  • USD $7.50 /EA
  • List Price USD $9.95 /EA
  • EA
  • Availability: This item is in stock.
  • USD $23.95 /EA
  • List Price USD $29.95 /EA
  • EA
  • Availability: This item is in stock.
CC Blower Fan Shroud for 2028 Motors V2
  • USD $18.95 /EA
  • List Price USD $24.95 /EA
  • EA
  • Availability: This item is in stock.
Quick Connect
  • USD $17.95 /EA
  • List Price USD $21.95 /EA
  • EA
  • Availability: This item is in stock.
Telemetry Link for Futaba S.Bus2
  • USD $54.95 /EA
  • List Price USD $67.95 /EA
  • EA
  • Availability: This item is in stock.
CC Bullets - 8MM Male Only (6-pack)
  • USD $10.95 /EA
  • List Price USD $13.95 /EA
  • EA
  • Availability: This item is in stock.
CC Bullets - 6.5mm
  • USD $9.95 /EA
  • List Price USD $12.95 /EA
  • EA
  • Availability: This item is in stock.

Mamba XLX2 Serviceable Parts

  • USD $8.95 /EA
  • List Price USD $10.95 /EA
  • EA
  • Availability: This item is in stock.
  • USD $12.50 /EA
  • List Price USD $15.95 /EA
  • EA
  • Availability: This item is in stock.