© 2022 Castle Creations P/N:095-0457-00 Revised 08/2022
ABOUT THE HYDRA XLX2
Motors
Please note that while the Hydra 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 100° C (212° F). Excessive
heat in the motor can damage the motor, the Hydra XLX2, and the batteries.
Prop Size
Always start with a smaller prop size. If you wish to change the prop, motor,
or battery, check your temperatures often on the first run. If the electronics
get too hot, decrease the prop pitch or diameter, or reduce the pack voltage.
Programming
Programming The Hydra XLX2 is programmable via transmitter (see Driver’s
Ed Guide) or settings may be programmed via computer with a Castle Link
USB adapter (coupon for free adapter included in package). Program with a
mobile device using a Castle B•Link Bluetooth® Adapter (sold separately or
utilize product discount in lieu of free adapter). You must disconnect the AUX
WIRE prior to connecting your ESC to the Castle Link USB adapter to avoid
damage to the USB adapter. See the Drivers’ Ed Guide for more instructions
on transmitter programming and the Castle Link system (“Tuning with Castle
Link” and “Transmitter Programming”).
Data Logging
The Hydra XLX2 features data logging. You will be able to measure and re-
cord important power system information during your race, turn-by-turn. Af-
ter your run, you can download and analyze this log using Castle Link. You will
be able to inspect many parameters including battery voltage, motor RPM,
ESC temperature and more. Additional information about using the data log-
ging features can be found in the Driver’s Ed Guide (“Data Logging”).
HYDRA XLX2 SPECIFICATIONS
Application
Guidelines Hobby boats up to 50”
Input Voltage
Range Min: 3S LiPo, Max: 8S LiPo, 33.6V
BEC Specs Adjustable from 5V to 8.5V (20 A peak), default 5.5V
Sensors Yes, with optional Sensor Harness (P/N 011-0108-00)
Product Use
Statement
• Applying voltages higher than 33.6V will cause irreparable
damage to your controller.
• WARNING: 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.
• The Hydra XLX2 is a high-performance controller; you must
use high-discharge cells in your high-performance application
to ensure vehicle performance (see Driver’s Ed Guide, “A Word
About Batteries”).
• The Hydra XLX2 requires the use of connectors designed for
150+ amps continuous. Ex. Castle 6.5mm polarized or 8mm
bullet (Driver’s Ed Guide, “Connectors and Power Wiring”).
• The Hydra XLX2 is not intended for human or animal propulsion.
*Failure to adhere to the Product Use Statement constitutes a violation of the warranty agreement, and
will result in non-warranty service fees to repair or replace damaged products.
540 North Rogers Road, Olathe, KS 66062
(913) 390-6939 (ext. #1 Support, #2 Service)
Product Support: castlecreations.com/contact-support
Service: castlecreations.com/contact-service
Website: castlecreations.com
