ePropulsion X20 Series User manual

2023.09 Version 1.0
Copyright © ePropulsion Technology Limited
X20 User Manual
Model: X20-L, X20-XL

1
Acknowledgement
Thanks for choosing ePropulsion products, your trust and support in our company are sincerely
appreciated. We are dedicated to providing high-performance electric outboards, electric
outboards, sup/kayak motors, reliable lithium batteries and accessories.
Welcome to visit www.epropulsion.com and contact us if you have any concerns.
Using This Manual
Before use of the product, please read this user manual thoroughly to understand the correct
and safe operations. By using this product, you hereby agree that you have fully read and un-
derstood all contents of this manual. ePropulsion accepts no liability for any damage or injury
caused by operations that contradict this manual.
Due to ongoing optimization of our products, ePropulsion reserves the rights of constantly ad-
justing the contents described in the manual. ePropulsion also reserves the intellectual property
rights and industrial property rights including copyrights, patents, logos and designs, etc.
This manual is subject to update without prior notice, please visit our website www.epropulsion.
com for the latest version. If you find any discrepancy between your products and this manual,
or should you have any doubts concerning the product or the manual, please visit www.epropul-
sion.com.
ePropulsion reserves the rights of final interpretation of this manual.
This manual is multilingual, in case of any discrepancy in the interpretation of different language
versions, the English version shall prevail.
Safety Warning
ePropulsion attaches great importance to safety and advises anyone who comes into close
contact with ePropulsion products, such as installation, operation, maintenance, or servicing, to
exercise caution, use common sense, follow the instructions in this manual, and adhere to the
safety information on the machine installation stickers to ensure the safety of individuals and
property and reduce safety risks.
The following are the relevant information symbols found in the user manual or product label
stickers:
Danger or Warning Signs: These signs indicate potential hazards or significant risks that, if not
avoided, could result in death or serious personal injury. Extra caution and attention should be
exercised regarding your safety or the safety of the product.

2
Important warning:
Tips or important informations help quickly grasp the use of the outboard motor and improve
efficiency.Please read and follow the instructions following the safety warning signs.
Caution:
When installing, operating, maintaining or serving ePropulsion products, there are many safety
risks in the process. You need to be alert, perform relevant operations reasonably, and pay atten-
tion to safety. when installing, operating, maintaining or serving ePropulsion products, there are
many safety risks in the process. You need to be alert, perform relevant operations reasonably,
and pay attention to safety.
Entanglement hazard:
Rotating parts can cause severe injury or death. Never wear jewelry, unbuttoned cuffs, ties or
loose-fitting clothing and always tie long hair back when working near moving/rotating parts
such as the flywheel or PTO shaft. Keep hands, feet and tools away from all moving parts.
Electric shock hazard:
The areas or equipment may be at risk of electric shock. The equipment uses 102.4V DC power.
When operating electricity-related electrical connectors, switches, cables and other electrici-
ty-related items, power off operation to prevent electric shock.
Burn hazard:
Some of the machine surfaces become very hot during operation and shortly after shutdown.
Keep hands and other body parts away from hot machine surfaces.
Do not approach when the machine is running:
The machine and equipment are in operation. Do not approach or touch the machine to avoid
dangers.
Do not pconnector or unpconnector when the machine is running:
Do not pconnector or unpconnector electrical equipment when the machine is running to avoid
the risk of electric shock.
Warning:
This product can expose you to chemicals including arsenic, which is known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
90mm
86mm
60mm
56mm
13mm
110mm
76mm22mm
100mm
88mm
110mm
76mm
22mm
100mm
88mm
120mm
116mm
80mm
76mm
18mm
120mm
116mm
80mm
76mm
18mm

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Product Serial Number
Below picture indicates the serial numbers of X20 Outboard Motor. Please note the position of
the serial numbers and record them for access to warranty service and other after-sale services.

4
Table of Contents
Acknowledgement.................................................................................................. 1
Using This Manual.................................................................................................. 1
Safety Warning ....................................................................................................... 1
Product Serial Number ........................................................................................... 3
1 Product Introduction............................................................................................ 8
1.1 In the Package.........................................................................................................8
1.1.1 X20 Packaging List......................................................................................8
1.1.2 Optional Accessory List ........................................................................... 10
1.1.3 Installation Tools List ............................................................................... 14
1.2 Parts and Diagram ............................................................................................... 15
1.3 Specification......................................................................................................... 17
1.4 Model and Shaft Length Selection...................................................................... 18
1.5 Important Notes................................................................................................... 18
1.6 Declaration of Conformity ................................................................................... 20
1.7 Statement ............................................................................................................. 21
1.8 Correct Disposal of this product......................................................................... 21
2 Unboxing ........................................................................................................... 22
2.1 Safety Notice........................................................................................................ 22
2.2 Tools and Equipment Required for Unpacking................................................... 22
2.3 Check the Package .............................................................................................. 22
2.4 Unpacking............................................................................................................. 22
2.5 Disposal of packaging materials ........................................................................ 24
3 X-Series Outboard Motor Installation ................................................................. 25
3.1 Before the Installation ......................................................................................... 25
3.2 Outboard Motor Installation................................................................................ 26
3.3 Propeller Installation............................................................................................ 28
3.4 Notice.................................................................................................................... 29
4 Connections ...................................................................................................... 30
4.1 X20 Various Scenario System Connection......................................................... 30
4.1.1 Single System Connection........................................................................ 30
4.1.2 Twin System Connection.......................................................................... 31
4.2 High Voltage Cables Connection ........................................................................ 32

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4.2.1 Make a cable (crimped cable connector) ............................................... 32
4.2.2 Cable connection at the bus box............................................................. 33
4.2.2.1 Required accessories and tools.................................................. 33
4.2.2.2 Installation.................................................................................... 33
4.2.3 Connecting the DC-DC Module and 12V Battery .................................... 36
4.2.3.1 Required Accessories and Tools ................................................ 36
4.2.3.2 Installation Steps ......................................................................... 36
4.2.4 Connecting the G102-100 Battery ........................................................... 37
4.2.4.1 Required Accessories and Tools ................................................ 37
4.2.4.2 Installation Steps ......................................................................... 37
4.2.5 Connecting the outboard motor's Main Power Cable ............................ 38
4.2.5.1 Required Accessories and Tools ................................................ 38
4.2.5.2 Installation Steps ......................................................................... 38
4.3 Communication Device and Connection............................................................ 40
4.3.1 Remote Control Scenario: Connecting Interactive Devices and Accessory
Communication Cables..................................................................................... 40
4.3.1.1 Required Accessories of Single System Connection ................ 40
4.3.1.2 Installation Steps ......................................................................... 40
4.3.1.2.1 Connecting Interactive Devices and Accessories .................. 40
4.3.1.2.2 Smart throttle connection ........................................................ 41
4.4 Grounding ............................................................................................................. 42
4.5 Purchasing Accessories and Connections ........................................................ 43
4.5.1 Installation of the 4G Antenna................................................................. 43
4.5.2 Installation of the External GPS Module ................................................. 44
4.6 Communication Terminator Connection ............................................................ 46
5 Operation........................................................................................................... 47
5.1 Smart Throttle Button Functions (single & double throttles) ............................ 47
5.2 Start the Machine................................................................................................. 49
5.2.1 Boot Operation.......................................................................................... 49
5.2.2 System problem feedback method after startup ................................... 49
5.3 Perform initial configuration ............................................................................... 49
5.4 Home Page........................................................................................................... 52
5.5 Propulsion Diagram ............................................................................................. 55
5.5.1 Control Console........................................................................................ 55
5.5.2 Power Battery ........................................................................................... 56

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5.5.3 Propeller.................................................................................................... 57
5.6 Setting................................................................................................................... 57
5.6.1 Propulsion Setting .................................................................................... 58
5.6.1.1 Propulsion switch ........................................................................ 58
5.6.1.2 Steering Setting............................................................................ 59
5.6.2 Control console Settings.......................................................................... 59
5.6.2.1 Smart throttle settings ................................................................ 59
5.6.2.2 Display settings............................................................................ 61
5.6.2.3 Helm Setting................................................................................. 62
5.6.3 General setting.......................................................................................... 63
5.6.3.1 System firmware information ..................................................... 63
5.6.3.2 Maintenance - All maintenance timing tips................................ 64
5.6.3.3 ePropulsion Connectivity Service ............................................... 65
5.7 Operation .............................................................................................................. 67
5.7.1 Check before start.................................................................................... 67
5.7.2 Starting the Outboard Motor.................................................................... 67
5.7.3 Adjust power............................................................................................. 67
5.7.4 Steering Control........................................................................................ 68
5.7.5 Trim Angle Adjustment ............................................................................ 68
5.8 Hydro Generation Function.................................................................................. 72
5.9 Idle Mode, Sleep................................................................................................... 73
5.9.1 Idle Mode .................................................................................................. 73
5.9.2 System Sleep ............................................................................................ 73
5.10 Cautions ............................................................................................................. 74
5.11 Troubleshooting................................................................................................. 75
5.11.1 Common mechanical troubleshooting ................................................. 75
5.11.2 System troubleshooting list and treatment methods .......................... 75
5.12 Lameness........................................................................................................... 79
5.12.1 Main driver lameness............................................................................. 79
5.12.2 Temporary Running Mode...................................................................... 80
5.12.3 Manual Trim............................................................................................ 81
5.13 Other Interfaces ................................................................................................. 81
5.13.1 Sound and Light Alarm........................................................................... 81
5.13.2 NMEA2000 Device Expansion ............................................................... 82
6 Emergency Situations........................................................................................ 83

7
6.1 Collision................................................................................................................ 83
6.2 Sodden Outboard ................................................................................................ 83
6.3 Overtemperature Protection ............................................................................... 83
7 Maintenance...................................................................................................... 84
7.1 Maintenance......................................................................................................... 84
7.1.1 Routine maintenance ............................................................................... 84
7.1.2 Machine maintenance.............................................................................. 85
7.2 Partial Maintenance and Care Guidelines .......................................................... 86
7.2.1 Gearbox Oil Replacement Procedure ...................................................... 86
7.2.2 Anode Replacement ................................................................................. 88
7.2.3 Propeller .................................................................................................. 89
7.2.4 Exterior Surface of the Outboard Motor.................................................. 90
7.2.5 Greasing Points ...................................................................................... 90
7.2.6 Check Grounding Wires............................................................................ 91
8 Warranty............................................................................................................ 92
8.1 Out of Warranty ................................................................................................... 92
8.2 Limited Warranty Claim Procedures................................................................... 94

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1 Product Introduction
The X20 Electric Outboard Motor is an electric propulsion system with an input power of 20kW.
It can be controlled using the smart tiller, digital helm, smart throttle, and smart display 5''.
The X20 Electric Outboard Motor is environmentally friendly, clean, and efficient. It is availa-
ble in two models: X20-L and X20-XL.
1.1 In the Package
Unpack the package and check if there is any damage caused during transport. Check all the
items inside the package against the below list. If there is any transport damage or lack of any
listed item, please contact your dealer immediately.
1.1.1 X20 Packaging List
Items Qty. Figure Function
X20 Outboard
motor w/o
propeller
1Provide the main
propulsion of the boat
Bus box 1
Transfers electrical
energy from the power
system's main circuit to
different components
or modules within the
circuit
96V Power Cable
5m 2
Transfer DC power
from the battery to
the power input of
the motor to provide
the power needed for
normal operation of the
motor
eSSA
Communication
Cable 1m
1
Connect the motor and
other devices such
as the smart throttle,
smart display and
battery
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Items Qty. Figure Function
eSSA
Communication
Extension Cable
10m
1
Extend the
communication
distance of the CAN
communication cable
Heating Shrinking
Tube 2Protect the main power cable after stripping it
Cable connector 6
Retrofit terminal for
rear end of main power
cable
eSSA
Communication
5-way T Connector
1
Connect the motor
and each device to the
CAN communication
network (controller
LAN)
eSSA
Communication
3-way T Connector
2
Connect the motor
and each device to the
CAN communication
network (controller
LAN)
eSSA
Communication
Terminator 120Ω
1Improve the quality of
communication
eSSA
Communication
Terminator 360Ω
1Improve the quality of
communication
X20/X20
Propeller Fairing 1Fixed to the rear end of the propeller
X20/X20 Thrust
Washer 1Propeller installation accessory
Hexagon Slotted
Copper Nut 1Propeller installation accessory
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Items Qty. Figure Function
Cotter Pin 2 Propeller installation
accessory
Lock Washer 2 Propeller installation
accessory
Hexagon Socket
Head Cap Screw
M4x10
3Rectifier hood
installation screws
X-Series Outboard
Motor Installation
Accessory Pack
1
Hexagon Bolt M12x1.25x110*4
Hexagon Nut M12x1.25*8
Large Washer M12*4
Plain Washers M12*4
Eye Bolt M10*2
Plain Washers M10
Motor installation
accessory
User manual
Warranty card 1
Give information about
the features, functions,
performance, purpose
and maintenance of the
product
1.1.2 Optional Accessory List
Other accessories not included in the package are also required to operate the outboard motor
such as propellers, smart tiller, digital helm, smart throttle, smart display 5'', G102 battery, battery
charger, and communication cables. Users can buy official accessories provided by ePropulsion
Technology authorized dealers.
Items Figure Function
X20/X20 propeller
15'' x 10 3/4'' RH
Suitable for heavy-load
scenarios
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Items Figure Function
X20/X20 Propeller
15'' x 10 3/4'' LH
Suitable for heavy-load
scenarios. Recommended for
use in twin-motor or multi-
motor
X20/X20 Propeller
13 3/8'' x 16 3/4"
RH
Suitable for light-load scenarios
X20/X20 Propeller
13 3/8'' x 16 3/4"
LH
Suitable for light-load scenarios
Recommended for use in twin-
motor or multi-motor
G102 Battery
and Cables
Provides reliable electrical
power for the system

12
Items Figure Function
Digital Helm Outboard motor steering
control
Smart Throttle Start, stop the motor and
control the power output
Smart Display 5''
Display system information
such as power, speed, battery
level and set system functions
DC-DC DC to charge the 12V battery
GPS module
Use when outboard motor GPS
signal is weak.
Obtaining a ship's Global
Positioning System (GPS)
signal can provide the ship's
position and speed information,
helping ship managers
with ship management and
adjusting course plans

13
Items Figure Function
4G antenna
Use when outboard motor 4G
signal is weak.
The 4G antenna is a kind of
communication equipment.
The machine realizes remote
network connection through the
4G antenna to realize remote
control and monitoring. At the
same time, it can support high-
speed data transmission, which
is convenient for the crew to
carry out online data sharing
and backup operations
12V battery Provide power to the system
12V equipments
G battery charger Charge the G102 battery
The 12V battery (not supplied with motor) needs a minimum current output of 120A, a
capacity of 120Ah.
The maximum output power of the DC-DC Converter is 500W. When selecting
the system's 12V equipment, ensure this charging capacity meets the battery's
requirements.
When selecting and purchasing propellers, it is recommended to consult ePropulsion
authorized dealers and consider the following references:
• If the expected speed is 25km/h or less, it is recommended to choose the X20/X40
Propeller 15'' x 10 3/4'' RH or X20/X40 Propeller 15'' x 10 3/4'' LH.
• If the expected speed is higher than 25km/h, it is recommended to choose the X20/X40
Propeller 13 3/8'' x 16 3/4" RH or X20/X40 Propeller 13 3/8'' x 16 3/4" H.
In the case of twin-motor or multi-motor setups, it is recommended to use a
combination of RH and LH propellers to achieve better-balance between the motors
and easier steering.

14
1.1.3 Installation Tools List
Before installing the outboard motor, users or machine installation operators need to prepare
the neceSSAry tools for outboard motor installation, propeller installation, wiring arrangement,
fixation, and connection.
Tool Specification Qty. Purpose
M5 Hex Wrench 4mm, suitable for M5 hexagon
socket cap screws 1
To disassemble the machine's
top cover, facilitating the
installation of eye bolts and
machine hoisting
M4 Hex Wrench 3mm, suitable for M4 hexagon
socket cap screws 1To install the propeller
deflector
M12 Socket
Wrench
18mm, suitable for M12 hexagon
bolts 2 To install the boat's bolt
M6 Socket
Wrench
10mm, suitable for M6 hexagon
bolts 1For the 12V power line
connectio
M8 Socket
Wrench
13mm, suitable for M8 hexagon
bolts 1To connect and fix the bus box
to the BDU busbar assembly
M20 Socket
Wrench 30mm, suitable for M20 nuts 1 To install the propeller
M12 Torque
Wrench Torque range: 0~100Nm 1
To control the torque during
the installation of the machine
and boat mounting bolts
Cross-head
Screwdriver / 1 For DCDC and other installations
Crane Lifting capacity ≥ 500kg 1 To lift and install the machine
Lifting Rope Bearing capacity ≥ 500kg 1 To lift and install the machine
Wire Cutter EC-50M 1For cutting the battery terminal
power cables
Wire Stripper SW-1018 1For stripping the battery
terminal power cables
Crimping Plier / 1 For crimping the battery
terminal power cables
Heat Gun / 1 For shrinking heat shrink tubes

15
Tool Specification Qty. Purpose
Electric Drill /
Hole-Making
Equipment
Hole requirement: φ13mm 1Drill holes in the boat for
machine installation
Hole-making
Tools Hole requirement: φ13mm 1Drill holes in the boat for machine installation
Hole-making
Tool Meet the hole size: 100mm 1 Boat hole routing
Sealant Structural adhesive 1 Apply to the bolt position after
machine installation
1.2 Parts and Diagram
ECU
Fixed Position of Eye Bolt
Propeller
(Purchased
Separately)
Gearbox
Mounting Bracket (inc serial number)
Motor
Top Cover
Underwater
Body
Power and
Communication
Cable
Electric Tilt & Trim
4G Antenna
Interface
Sound and Light
Alarm Interface
Communication Interface
for Smart Tiller
Communication Interface
for Interactive System
High Voltage
Interlock
Interface
NMEA2000
Interface
Figure 1-1

16
Figure 1-2
Figure 1-3
ECU
Fixed Position of Eye Bolt
Propeller
(Purchased
Separately)
Gearbox
Mounting Bracket (inc serial number)
Motor
Top Cover
Underwater
Body
Power and
Communication
Cable
Electric Tilt & Trim
4G Antenna
Interface
Sound and Light
Alarm Interface
Communication Interface
for Smart Tiller
Communication Interface
for Interactive System
High Voltage
Interlock
Interface
NMEA2000
Interface
ECU
Fixed Position of Eye Bolt
Propeller
(Purchased
Separately)
Gearbox
Mounting Bracket (inc serial number)
Motor
Top Cover
Underwater
Body
Power and
Communication
Cable
Electric Tilt & Trim
4G Antenna
Interface
Sound and Light
Alarm Interface
Communication Interface
for Smart Tiller
Communication Interface
for Interactive System
High Voltage
Interlock
Interface
NMEA2000
Interface

17
1.3 Specification
Model X20-L / X20-XL
Rated input power 20 kW
Recommended battery ePropulsion Lithium Iron Phosphate Battery
Rated input voltage 96 Vdc
Input voltage range (high voltage) 86 - 115 Vdc
Input voltage range (low voltage) 10.5 - 16 Vdc
Weight L: 76.5 kg XL: 78 kg
Shaft length (from bracket clamp to anti-
cavitation plate, see Figure 1.4) L: 508 mm XL: 635 mm
Dimensions (Length * Width * Height) L: 674 mm x 360 mm x 1229 mm
XL: 674 mm x 360 mm x 1356 mm
Rated rotational speed 1500 rpm
Rated power rotational speed range 1200 - 1800 rpm
Operating Temperature -5 - 55 ℃
Storage Temperature -25 - 70 ℃
Control System Smart Throttle ; Smart Tiller ; Digital Helm
Digital Helm Pro ; Smart Display 5"
ePropulsion Connectivity Service Supported
Assisted Driving Supported ADAS L1
Suitable propeller (purchase separately)
X20/X20 propeller 15'' x 10 3/4'' RH
X20/X20 propeller 15'' x 10 3/4'' LH
X20/X20 propeller 13 3/8'' x 16 3/4" RH
X20/X20 propeller 13 3/8'' x 16 3/4" LH
Trim adjustment device Standard electric tilt & trim
Tilt Angle -4° - 61°
Steering Device Equipped with Electric Steering System
Steering Angle ±45°
When the high-voltage input voltage is below 96Vdc, there will be an undervoltage alarm.

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1.4 Model and Shaft Length Selection
For X-series outboard motors, the shaft length refers to the distance from the bracket clamp to
the lower surface of the anticavitation plate.
The mounting height of the outboard affects the running speed seriously. When the mounting
height is too high, cavitation may occur, which may lead to speed slowdown, energy waste, and
propeller damage. When the mounting height is too low, the water resistance will reduce both
travelling speed and performance of the outboard.
In general, the optimal mounting height is affected by the specific conditions of a boat. In order
to get the optimal mounting height, it’s suggested to test running by mounting the outboard at
different heights. Please consult your dealer for more help.
Transom Height Recommended Model
＜470mm X20 - L
470mm~595mm X20 - XL
1.5 Important Notes
1. Only adults who have fully read and understood this manual are allowed to operate this
product. Read the full user manual carefully before operation, ePropulsion accepts no liability
for any damage or malfunction caused by operations violating this manual.
2. Please follow the instructions of the boat manufacturer to choose a suitable outboard motor
and avoid overloading the boat or outboard motor.
3. Only boat owners who are familiar with their boats are allowed to use this pod system. For
a newly bought boat, the boat owner should learn all aspects of the boat including how the
boat behaves in different conditions and practicing controlling the boat before mounting and
operating this outboard motor.
4. Before operation, familiarize yourself with all the functions and operations of this product.
Transom Height
Shaft Length
Figure 1-4