Robot Power Scorpion XXL Dual Channel R/C Motor Controller 20A, 6-28V
Handles robots up to 90 lbs
Delivers 20A continuous, 45A peak per channel
Supports 6-28V for broad compatibility
Includes failsafe and R/C signal monitoring
Features upgradeable FLASH-based microcontroller
The Robot Power Scorpion XXL Dual Channel R/C Motor Controller 20A, 6-28V is a versatile and high-performance motor controller designed for small to medium-sized mobile robots, including competition firefighting robots, sumo robots, and robotic combat applications. It is capable of handling robots weighing up to 90 pounds, provided the motor current limits are adhered to. Additionally, the Scorpion XXL is suitable for various non-robotic applications such as controlling lights and hydraulic valves.
This motor controller offers a continuous current of 20A per channel, with a peak capacity of 45A, and can be enhanced to 25A with fan cooling. It operates within a battery voltage range of 6.0V to 28V, ensuring compatibility with a wide array of power sources. The device features full current and temperature limiting, making it highly resistant to damage.
The Scorpion XXL includes two R/C input leads and a pin header for steering or throttle control, with fully reversible H-bridge channels. It offers a range of control options, including channel mixing, separate channel control, and a flip control feature that reverses controls if the robot is overturned. The controller is equipped with indicator LEDs for speed and direction, as well as a status LED for R/C signal monitoring.
Additional features include a brake/coast option at zero speed, linear or exponential steering response, and a LiPo battery cutoff option. The integrated switching style 5V regulator supports newer 2.4GHz radio receivers without the need for jumpers. A receiver battery eliminator circuit is standard, providing up to 200 mA of current at 5V to the RC receiver and other electronics.
The Scorpion XXL incorporates a failsafe mechanism that shuts off motors if the R/C signal is lost, and a calibration function to synchronize with the radio or signal source, with settings stored in EEPROM. The FLASH-based microcontroller allows for software upgrades via an in-circuit programming header. An optional plastic enclosure is available to protect the unit from environmental factors and to mount a cooling fan.
Note: Ensure proper handling to avoid exceeding current limits, which may result in damage or malfunction.
1x Robot Power Scorpion XXL Dual Channel R/C Motor Controller 20A, 6-28V
3.27 x 2.27 x 0.5 inches
20A continuous current (45A peak) for each Left and Right channel
25A continuous current with fan cooling
Supports battery voltage from 6.0V to 28V
Features full current limiting and over-temperature limiting
Includes two R/C input leads and one pin header for Steering/Throttle or Left/Right Control with fully reversible H-bridge channels
Flip Control option reverses controls if the robot is flipped over
Equipped with 2 indicator LEDs for Left/Right speed and direction, and a status LED for R/C signal status and other information
Offers Left/Right channel mixing or separate channel control option
Brake/Coast at zero speed option available
Linear/Exponential steering response option
Lipo battery cutoff option included
Switching style 5V regulator eliminates battery voltage concerns and provides increased current on the 5V rail for newer 2.4GHz radio receivers, functioning without jumpers from 6V to 28V
Standard receiver battery eliminator circuit (BEC) can be disabled, providing up to 200 mA of current at 5V to the RC receiver and other attached electronic circuits
Failsafe feature shuts off motors if R/C signal is lost
Calibration function to match Scorpion to your radio or other signal source, with settings stored in EEPROM
FLASH-based microcontroller with upgradeable software via in-circuit programming header
Remote power switch connections allow the unit to be turned off without breaking the main power connection
Optional plastic enclosure available to protect Scorpion XXL from environmental contamination
Enclosure also used to mount the cooling fan for the XXL
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
United Kingdom consumers exercising their statutory Right of Cancellation are subject to different conditions. See the Statutory Right of Cancellation.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorisation (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A £100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables * — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tyres, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odour-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly * — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps * — Final sale only, due to licensing restrictions.
Clearance Items * — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items * — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfil a customer request.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
