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In Stock Maytech Watercooled 85165 Sensorless Motor 10.5KW Brushless DC Engine for Esurf/ Efoil
In Stock Maytech Watercooled 85165 Sensorless Motor 10.5KW Brushless DC Engine for Esurf/ Efoil
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Specification:
Model No. | MTI85165-200-SF |
KV | 200, if you want other KV, contact agnes@maytech.cn |
Max Current | 300A |
Input Voltage | 6-12S Lipo (25-50V) for 200KV, 6-16S Lipo (25-67V) for 150KV |
Max Output Voltage | 10.5KW |
Shaft | Screw Shaft, other shaft can be customized, contact us |
Hall Sensor | Without, if you want hall sensor, contact agnes@maytech.cn |
Motor Pole Number | 10 |
Waterproof Rank | Not waterproof, watercooled version, can't work underwater directly |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |




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Esurf/ Efoil Kit Watercooled 85165 Motor + Waterproof 300A ESC+ MTSKR1905WF Remote + 300A 85V Switch + Water Pump
1. MTSF300A-WP ESC Upgrade Version:
Model No. | MTSF300A-WP |
Cont Current | 300A |
Peak Current | 1000A |
Watercooling | With |
Waterproof Rank | IP68 |
Input Voltage | 6-14S Lipo (25-58.8V) |
Case Material | Aluminum alloy |
Signal Format | PWM, 1ms-2ms |
Connector | 8.0mm female gold-plated bullet connector on 3 motor cables, on battery side without connector. With waterproof protector for connectors |
Features:
- Built in 75V to 5V and 75V to 12V UBEC DC-DC Module, 5V output is for receiver power supply, 12V output is for light and water pump, or other use.
- With waterproof junction box, all functions lead out and with pins in the box, and if you work with Maytech MTSKR1905WF remote, its receiver can be put inside of the box and directly plug in, easier to use and receiver can be waterproofed.
- Both IP68 waterproof and watercooled, which means 2 cooling ways:
- The case can work under seawater because of its IP68 waterproof case; If you don't want to put it underwater, then just cool it with water pump through its cooling tubes.



> Click to get Progcard Manual and Instruction:
2. MTI85165 Inrunner Watercooled Motor
Model No. | MTI85165-200-SF |
KV | 200, if you want other KV, contact agnes@maytech.cn |
Shaft | Screw Shaft |
Input Voltage | 6-12S Lipo (25V-50V) |
Waterproof Rank | Not Waterproof |
Watercooling | With |
Max Current | 300A |
Max Output Power | 10.5KW |
Pole Number | 10 poles |
Max Torque | 15.5N.m |
Connector | 8.0mm male golded-plated bullet connector |
Hall Sensor | Without |
Customize | KV, logo, shaft, cable, connector, cover, case, etc., contact agnes@maytech.cn |


3. Remote: MTSKR1905WF IP67 Waterproof Remote for Esurf, with PWM & UART Receiver
Model No | MTSKR1905WF (V2), upgraded waterproof and signal strength |
Waterproof Rank | IP67 with 2 layers nanometers coating |
Control Mode | Esk8/ Esurf |
Signal Format | Support Standard PWM (PPM) and UART, output range from 10%-20%, which correspond to ESC/VESCTOOL Compatible controller throttle output range from 0%-100%. |
PWM Signal Output Range | 1ms-2ms for throttle no brake in Esurf mode; 1.5ms-2ms for throttle, 1.5ms-1ms for brake in Esk8 mode. |
Double Source Power Supply | Accept 5V power by ESC built-in BEC or extra 5V power |
Output Signal | Max 3.3V |
Display |
Remote and battery power, signal strength, throttle and brake percentage, RPM; speed, mileage; Current, voltage, temp when work with VESC |
Control Pump | Yes (Relay Switch) |
Control Light | Yes (Transistor Switch) |
Safety Button | Support |
Cruise Control | With in Esurf Mode |
Brake | With in Esk8 Mode |
Wireless Charging | Yes |
Package Includes | Transmitter, receiver, charging Pad, receiver, wristband, 3pcs dupont cable |
Compatible Controllers | VESC/ Focbox/ Other PWM ESCs that has same signal output range with the remote. |
Application | foil assist system, electric propulsion, underwater thruster, electric outboard, Esurf, Efoil, electric hydrofoil, electric surfboard, electric skateboard/ elongboard/ mountainboard, electric paraglider, etc., |


4. MTS2009AS Antispark Switch
Model No. | MTS2009AS |
Max Current | 300A |
Input Voltage | 6-20S Lipo (25-85V), recommend better work under 75V |
Swith Diameter | 12mm |
Switch Type | NMOS to realize switching on/off Power positive |
Waterproof | No, please keep the switch in dry space |
Connector | With 4pcs Cold-pressed Terminal Connector |
Function | Protect your controller and power supply system when brake or startup |
Application | Electric surfboard, efoil, foilboard, jetski, jetboard, jetsurf, motorized hydrofoil, motorcycle, fighting robots, lawnmower robot, Electric mountainboard, ATV, motor bike, Airplane, VTOL, UAV, Dronesetc., |
Features: | Switch comes with LED light indicator; Shutdown current less than 1uA; Suitable for load: three phase motor speed controller; Boot soft start; Automatic short circuit protection when boot; Automatic short circuit protection when work. |



5. Water Pump

Feedback Videos on Efoil:
https://youtu.be/iAedKKE7Er4
https://youtu.be/K4SvMuxpIMo
https://youtu.be/bC3pf8GgMHo
https://youtu.be/8dZ4fjnAdoI
https://youtu.be/ZMIyqY0dZkk
Customer feedback showing you how to DIY Efoil:
https://www.thingiverse.com/thing:4686310
Advice after usage:
1. To expand the products life, please better wipe off the waters on the products and keep them for all dry after everytime use.
2. For this kit of the ESC, because the motor is sensorless, suggest to use the default value in the ESC, we have tested the kit before shipment with the default value, do not suggest to modify the values.
If you have other requirement on motor KV, ESC or other questions, please contact us agnes@maytech.cn

In Stock 2pcs/ 5pcs MTSPF7.5HK 300A 75V based on V75/300 SuperESC Watercooled Speed Controller
Model No. | MTSPF7.5HK |
Input Voltage | 5-18S Lipo (18V-75V) |
Hardware | based on V75/300 |
Firmware | Updatable |
Current | 300A |
Software | VESCTOOL Compatible |
Heat Sink | With |
Water Cooling | With |
Capacitors | 9pcs 100V 470μf capacitor |
Application | electric skateboard, fighting robot, e-bike, electric motorcycle, efoil, electric surfboard, watercraft, electric boat, underwater ROV, agricultural robots, robotic sprayer, etc |
-Absolute Maximum Current: 350A (According to your motor current)
-Battery Current Max: ≤150A (According to your battery discharge current)


Ports definitions:
- AUX port to supply 12V and 5V to external device;
- PPM port to connect PPM transceivers; Never connect one reclever to two or more VESCs in an array ! Permanent damage may result from Y-PPM wiring
- CAN Port for CAN communication with other devices and controller arrays; Only connect CAN L and CAN H ! GND pins and 5V should never be connected in aVESC array.
- Sensor port for motor Hall sensors (ABI, HALL, magnetic precision encoders);
- SWD port to get direct access to the Chipset. Diagnostics, debugging, and real time data;
- COMM port for various kinds of other communication methods like I2C, ADC, Uart,you can use your Arduino or Raspberry Pi to control the SuperESC!
- USB port for programming.



Features:
Max ERPM(RPM) (separate limits for each direction)
-
With CNC aluminum alloy heat dissipation case, optional water cooling system and forced air cooling system.
-
With larger heat sink case that has better heat dissipation performance.
-
Its heat sink case bottom is coverd by fins that can better heat dissipation.
-
Its PCB board has 4pcs MOS paralleled, could withstand higher current, original version only has 3pcs MOS.
-
Its PCB board with cooper stripe, can reduce resistance in high current, better heat dissipation.
-
With larger capacitor, 9pcs 100V 470μf capacitor, while original version only has 6pcs 80V 470μf.
-
With separate design of strong and weak current circuit board, and between 2 boards added heat sink for better heat dissipation.
-
Exclusive 5V and 12V external power supply interfaces will not cause interference when powering analog circuits such as twist/thumb throttles.
2.Must do a good job of heat dissipation! If place it in a sealed container(recommend touse metal container), it must be forced to be cooled with water. Also make sure your container has enough space for the controller, make sure the cooling tube do not bent, otherwise will influence water flow in cooling tube, also make sure water flow is enough for cooling before office use.
3. Before the new ESC is officially used, please test it with a low-voltage and low-throttle, after success, then slowly increase voltage and throttle. Be sure to pay attention to safety during this period!
4. Recommend to add an electronic switch with short circuit protection function between the ESC and battery, such as MTS2009AS 300A electronic switch or BMS with switch function. It is not recommended to use only contactor without short circuit protection!
5. The battery and motor side terminals must be connected tightly, they can’t be loose. Also please make sure terminals not touch case or other wires, here's the video shows you the way to install cold-pressed terminal connector: https://youtu.be/unFfV9RPPCc
6. In actual use, please use hot melt glue to fix the hall/UART interface cables the corresponding sockets of the ESC, to prevent the cables loose due to the bumps of the vehicle!
7. Please do not disconnect relay switch or electronic switch during usage ! Otherwise it will cause electromagnetic interference, which might damage the controller.
PPM Mapping: Pulselength Start: 1.1ms; Pulselength End: 1.9ms; Pulselength Center: 1.5ms
Recommend Products: Click below pictures to check more information

Pre-order Maytech New Marine 32Bit 300A 60V ESC IP68 Waterproof Smaller Size for Efoil Underwater Thruster Electric Surfboard
Pre-order Maytech New 300A 60V Waterproof ESC Smaller Size for Efoil Underwater Thruster Electric Surfbord
Specification:
Strengths:
Related Products:

In Stock Maytech IP67 Waterproof Remote MTSKR1905WF Controller for Esk8/ Esurf/ Efoil
Specification:
Model No | MTSKR1905WF (V2), upgraded waterproof and signal strength |
Waterproof Rank | IP67 with 2 layers nanometers coating |
Control Mode | Esk8/ Esurf |
Signal Format | Support Standard PWM (PPM) and UART, output range from 10%-20%, which correspond to ESC/VESCTOOL Compatible controller throttle output range from 0%-100%. |
PWM Signal Output Range | 1ms-2ms for throttle no brake in Esurf mode; 1.5ms-2ms for throttle, 1.5ms-1ms for brake in Esk8 mode. |
Double Source Power Supply | Accept 5V power by ESC built-in BEC or extra 5V power |
Output Signal | Max 3.3V |
Display |
Remote and battery power, signal strength, throttle and brake percentage, RPM; speed, mileage; Current, voltage, temp when work with VESC |
Control Pump | Yes (Relay Switch) |
Control Light | Yes (Transistor Switch) |
Safety Button | Support |
Cruise Control | With in Esurf Mode |
Brake | With in Esk8 Mode |
Wireless Charging | Yes |
Package Includes | Transmitter, receiver, charging Pad, receiver, wristband, 3pcs dupont cable |
Compatible Controllers | VESC/ Focbox/ Other PWM ESCs that has same signal output range with the remote. |
Application | foil assist system, electric propulsion, underwater thruster, electric outboard, Esurf, Efoil, electric hydrofoil, electric surfboard, electric skateboard/ elongboard/ mountainboard, electric paraglider, etc., |
Features:
1. Display speed (km/h or mph) in Esk8 mode (for electric skateboard)2. Display voltage in V, current, temperature when work with VESC based controller
> Get Manual: Remote Manual and Instruction
Click Here: How to Display Volt, Current, RPM with TX and RX?


The remote has 2 Modes, signal output pulse width is different in 2 modes:
- Esurf Mode is 1ms-2ms, no stop no brake, if you use Esurf mode to work with VESCTOOL compatible controller, please use below settings in VESCTOOL and to match with the remote:
PPM Control Type: Current no reverse
PPM Mapping: Pulselength Start: 1.1ms; Pulselength End: 1.9ms; Pulselength Center: 1.5ms
Or you can use wizard mode to detect compatible value.
- Esk8 Mode is 1.5ms-1ms (Brake), 1.5ms-2ms (Speed up), 1.5ms is stop position.
Please noted to match compatible parameters for different modes in VESC_TOOL.


Tips After Using:




In Stock 2pcs / 5pcs MTS2009AS Max 300A 85V Anti-spark Switch with Short Cirsuit Protection
Maytech MTS2009AS Max 300A 85V Electronic Anti-spark Switch Battery Cutoff Switch with Short Circuit Protection for Electric Hydrofoil Efoil Surfboard
Specification:
Model No. |
MTS2009AS |
Max Current |
300A |
Max Voltage |
6-20S Lipo (25-85V), recommend better work under 75V |
Size |
96.5 x 56 x 25 (mm) |
Switch Diameter |
12mm |
Switch Type |
Use NMOS to realize switching on/off Power positive |
Connector | With 4pcs Cold-pressed Terminal Connector |
Function | Protect your controller and power supply system when brake or startup |
Features |
First Switch that can cut off positive pole power in the market; Switch comes with LED light indicator; |
Application | Electric surfboard, efoil, foilboard, jetski, jetboard, jetsurf, motorized hydrofoil, motorcycle, fighting robots, lawnmower robot, Electric mountainboard, ATV, motor bike, etc., |





In Stock Maytech IP68 Waterproof MTI85165 200KV Inrunner Brushless Sensorless Motor for Esurf/Efoil/RC Boat KV Customized
Specification:
Model No. | MTI85165-200-WP |
KV | 200, if you want other KV, contact agnes@maytech.cn |
Max Current | 300A |
Input Voltage | 6-12S Lipo (25-50V) for 200KV, 6-16S Lipo (25-67V) for 150KV |
Max Output Voltage | 10.5KW |
Shaft | Keyway Shaft |
Hall Sensor | Without, if you want hall sensor, contact agnes@maytech.cn |
Motor Pole Number | 10 |
Waterproof Rank | IP68 Waterproof |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |
About Fully Waterproof Version:

