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Maytech Waterproof 300A 14S 60V Watercooled ESC for Efoil Electric Surfboard Jetsurf
Maytech Waterproof 300A 14S 60V Watercooled ESC for Efoil Electric Surfboard Jetsurf
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Maytech MTSF300A-WP IP68 Waterproof 300A ESC 300A 85V Anti-spark Switch Water Pump Esurf Kit Speed Controller for Efoil/RC Boat
Upgraded Notice Since July 29, 2022.
Upgrade with waterproof junction box for wiring as below picture:
Receiver can be put in the junction box to be waterproof, too:


Please noted for usage:
Max ERPM recommended to use for the ESC is 50000.
ERPM = RPM x Motor pole pairs number




Related Products: (Clicking the following pictures to check specs)
1. IP67 Waterproof Esk8 Remote MTSKR1905WF:
2. Waterproof Watercooled Esurf/Efoil/RC Boat Kit:
3. Maytech Watercooled 300A ESC Not Waterproof:
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😍 Frequently Bought Together
- In Stock Maytech IP67 Waterproof Remote MTSKR1905WF Controller for Esk8/ Esurf/ Efoil
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- In Stock Maytech Fully Waterproof Efoil Motor MTI65162 120 Brushless Inrunner Motor
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- In Stock Maytech IP68 Waterproof MTI85165 200KV Inrunner Brushless Sensorless Motor for Esurf/Efoil/RC Boat KV Customized
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- In Stock Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski
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- In Stock Maytech Watercooled 85165 Sensorless Motor 10.5KW Brushless DC Engine for Esurf/ Efoil
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- In Stock Maytech MTI120116 18.8KW Watercooled BLDC Motor Inrunner Sensorless Engine for Esurf/ RC Boat
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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 Maytech Fully Waterproof Efoil Motor MTI65162 120 Brushless Inrunner Motor
Maytech Fully Waterproof Efoil Motor MTI65162 100/120/190KV Brushless Inrunner Motor for Electric Surfboard/Efoil/Jetski/Esk8
Specification:
Model No. | MTI65162-120-SF |
KV | 100, 120, if you want other KV, contact agnes@maytech.cn |
Max Current | 300A |
Input Voltage | 6-24S Lipo (25-100V) |
Max Output Voltage | 9KW |
Shaft | Screw Shaft |
Hall Sensor | Without |
Motor Pole Number | 6 |
Waterproof Rank | IP68 Waterproof |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |
Customer Test Video on Efoil:
Maytech Self Testing: MTI65162-100-SF+MTSP0504 Prop+300A ESC+1905WF Remote:

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:



In Stock Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski
Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski Multiple Versions
Specification:
Model No. | MTI120116 |
Options | IP68 Waterproof / Watercooled / Sensorless / Sensored, choose the one you want, sensorless is normally in stock, sensored version is not stock item, if you need urgently, contact agnes@maytech.cn to check stock first before place order |
KV | 100/200, can customize, contact us |
Max Current | 380A |
Input Voltage | 6-20S Lipo (25-84V) for 100KV, 6-20S Lipo (25-50V) for 200KV |
Max Output Voltage | 18.8KW |
Shaft | Keyway Shaft |
Hall Sensor | With |
Motor Pole Number | 10 |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |
Appliacation | Electric surfboard, boat, jetsurf, jetboard, watercraft, jetski, electric outboard, etc., |
Different application for Sensored and Sensorless Version:
To meet different customers requirements, we designed one version with hall sensor, one version without hall sensor.
Sensored version can not only be used underwater but also can be used on electric skateboard, fighting robots, electric cars, etc.,
Sensorless version usually use for underwater electric vehicles, electric surfboard, Efoil, hydrofoil, rc boat, water jet propulsion, etc.,
Application:
Electric surfboard/Efoil/Hydrofoil/jetski/jetboard/waterboard/water jet propulsion/surffoil/foilsurf/foilboards/rc boat, foil boat, foiling boat, hydrofoil boat, hydrofoiling boat, rescue boat, metal cutting machine, drilling and wrenching machines for rails, etc.,



Stock Notice before Place Order:
The motor stock is limited, please confirm order asap.
And if you need very urgently, please contact us agnes@maytech.cn to check stock first, if in stock, shipping time is about 1-2 days after order confirmed.
If not in stock, production time 30-50 days after order confirmed.
About Fully Waterproof Version:
We Upgraded Waterproof Performance from Oil-sealed to Water-sealed, which has better waterproof performance and can extend motor lifespan.
Esurf Kit Test: MTI120116-200-WP+MTSF300A-OPTO-WP+MTSKR1905WF

In Stock Maytech Watercooled 85165 Sensorless Motor 10.5KW Brushless DC Engine for Esurf/ Efoil
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 |





In Stock Maytech MTI120116 18.8KW Watercooled BLDC Motor Inrunner Sensorless Engine for Esurf/ RC Boat
Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski Multiple Versions
Specification:
Model No. | MTI120116 | Idle Current | 2.8A/8.4V |
Internal Resistance | 0.0322Ω | Max Current | 380A |
Input Volt | 10-16S Lipo | Max Output Watt | 18.8KW |
Max Pull | 20.6 N.m | Motor Weight | 4400g |
Motor Touque @60% | 20.6 N.m | Shaft | Keyway Shaft |
Motor Size | 120x116mm | Construction | 12N/10P |
Max Working Temperature | 120℃ | Insulation Volt & Leak Current | AC500V/10MA/3S |
Shaft Extension | D15*L30 | Lead Wires Extension | 6AWGx300mm |
Plug | 8mm | Lifespan | 8000h |
Options: Please choose the suitable variation you need according to the following table
Model No. | KV | Fully Waterproof | Water-cooling | Sensor |
MTI120116-100-HA-WP | 100 | Yes | No | Yes |
MTI120116-100-HA-SF | 100 | No | Yes | Yes |
MTI120116-100-WP | 100 | Yes | No | No |
MTI120116-100-SF | 100 | No | Yes | No |
MTI120116-200-HA-WP | 200 | Yes | No | Yes |
MTI120116-200-HA-SF | 200 | No | Yes | Yes |
MTI120116-200-WP | 200 | Yes | No | No |
MTI120116-200-SF | 200 | No | Yes | No |
Different application for Sensored and Sensorless Version:
Application:


Stock Notice before Place Order:
The motor stock is limited, please confirm order asap.
And if you need very urgently, please contact us agnes@maytech.cn to check stock first, if in stock, shipping time is about 1-2 days after order confirmed.
If not in stock, production time 30-50 days after order confirmed.
Warning:
Flier ESCs are not compatible to all Maytech motors, recommend to use our 300A ESC as following recommend products.
Esurf Kit Test: MTI120116-200-WP+MTSF300A-OPTO-WP+MTSKR1905WF
Related Products: (Clicking the following pictures to check specs)
1. Maytech Fully Waterproof Efoil kit MTI65162 Motor+1905WF+300A ESC
2. Maytech MTSKR1905WF IP67 Waterproof V2 Remote:
3. Maytech Fully Waterproof Efoil Kit MTI85165 Motor+1905WF+300A ESC
4. Maytech Fully Waterproof Esurf/RC Boat Kit 18.8KW 120116 Motor+1905WF+300A ESC:
5. Maytech MTSF300A-OPTO-WP Fully Waterproof 300A ESC: