OKAI EB50 Manuel utilisateur

The manufacturer reserves the right to change and release product firmware
updates and to keep this manual up to date.
https://www.okai.co

EB50
Instruction Manual

01
Contents
02
03
05
06
07
10
11
10
18
19
19
19
20
20
21
07
07
11
19
1-1.Technical Data
1-2.Symbol Explanations
1-3.List of finished product and parts
1.Introduction
2.Intended Use
3.Safety Instructions
3-1.Safety instructions
3-2.Battery safety precautions
3-3.Safety instructions for battery charger
4.How To Use
4-1.Instrallation instructions
4-2.Charging the battery
4-3.Ride preparation
5.Maintenance,Cleaning and Service
5-1.Maintain
5-2.Clean
5-3.Storage and transportation
6.Handling
7.Explanation Of Error Codes

02
Thank you for purchasing the OKAI electric bike.
1.Introduction
OKAI sincerely hopes that you can ride the bike safely and enjoy a comfortable riding experience.
Since riding a bike carries certain risks, please read this practical manual carefully before riding, and
adequately prepare before going on the road. Please keep the instruction manual in case you need it
from time to time. If you give the electric bike to others, please also provide them with this user
manual. Failure to comply with this user manual may cause serious injury to people or cause damage
to the product. OKAI does not assume any responsibility for this. In order to be concise and easy to
read, the OKAI E-Bike will be referred to as “product” in the following Content.

03
1-1.Technical Data
Brake
Tire
Brake Stopping Distance
Brake Mode
Tire Size
Tire Material
Front:26inch
Rear:26inch
Pneumatic tire
Front:disc brake
Rear:disc brake
≤10m
Parameter
Rated Power
Max Power
1925*710*1104(mm)
26"
Range
Battery Quantity
Maximum Speed
Adapted Terrain
Operating Temperature
Storage Temperature
IP Rating
Charging Time
Rated Voltage
BMS
Rated Capacity
Swappable Battery?
(Yes or No)
Max Torque
Rated Voltage
Motor Control Mode
—20~45℃
48V
85N.m
48V
750W
1000W
0~40℃
Flat/Mountain land
≤72km(45miles)
Battery
Parameter
Motor
Parameter
N.W. 38kg
32 km/h (20mph)
2.8A<6H
IPX5
14.7Ah
Yes
Negative point port
39Pcs
Brushless gear reduction motor
Item Content EB50
Dimensions (unfolded):
LxWxH
Frame Size

04
*Specifications are subject to change without prior notice.
*Range: When fully charged, with a load of 75kg, an ambient temperature of 25°C, driving on a flat
road with human-assisted.
*Factors affecting the range include: speed, ambient temperature, climbing, number of starts and
stops, etc.
Item Content
Charger
Rider
Features
Packing
Input Voltage
Output Voltage
Output Current
Max Load
AGE Recommended
Height Required
Brake Light
Riding Mode
Certification
Manner Of Packing
G.W.
EB50
150kg
2.8A
54.6V
100-240V
45.5kg
Normally on
Zero start (rear drive)
FCC、CPSC
140~200cm
>14 years old
1pcs/ctn

05
DANGER
WARNING
CAUTION
Indicates a hazard signal with a high degree of danger. If not avoided, death or
serious injury may occur.
A hazard signal that indicates a moderate hazard. If not avoided, death or
serious injury may occur.
A hazard signal that indicates a lower hazard. If not avoided, mild or moderate
injury may occur.
This symbol marks additional information and instructions about the product
and its use.
Please read the instruction manual carefully before use.
This product is a second-class protection product.
Positive and negative display.
Wear personal protective equipment(PPE).
Please do not use this product after taking alcohol, sedatives or psychotropic drugs.
Minimum age: 14 years old.
Do not enter the road with these signs.
1-2.Symbol Explanations

06
1-3.List of finished product and parts
Size: length 1925*width 710*height 1104mm
Buttons
Headlights
Eight speed shifter
Display
Brake lever
Front fender
Charging port
26*4.0 in Rear
wheel group
Pedal
Cushion
Battery key port
Front quick
release
Front and rear
disc brake
Rear fender
group
Rear motor

07
2.Intended Use
3.Safety Instructions
3-1.Safety instructions
This section lists the safety instructions that should be followed when using this product.
·An electric bike is intended for sport and entertainment purposes, not for use as a means of
transportation, but the transportation faction of the product once you drive it into public areas (as
permitted by the laws and regulations of your region and country)also carries potential safety risks for
all vehicles. Drive strictly in accordance with the instructions in this manual to ensure the safety of
yourself and others to the utmost extent, and to ensure compliance with national first-level traffic
laws and regulations of various provinces and cities, such as traffic regulations, etc.
·Please note: Once you drive an electric bike on public roads or other public places (as permitted by
the laws and regulations of your region and country regarding the use of electric bike on public roads
or other public places), even if you fully comply with this safe driving guide operation, you may also
face risks caused by illegal driving/improper operation by others, or other vehicles. Just like when
walking or riding a bicycle, you may also be injured by other vehicles. As with any vehicle, the faster
you drive an electric bike, the longer the distance required to brake, and emergency braking on
smooth surfaces may also cause the wheels to slip and lose balance or even fall over. Therefore, it is
very important to be vigilant when driving, maintain a proper speed, and maintain a reasonable and
safe distance from other people and vehicles. When driving on unfamiliar terrain, stay alert and drive
at a low speed.
·Please respect the pedestrian's right of way when driving. Avoid frightening pedestrians, especially
children.
·When driving in countries and regions where there are currently no national standards and
regulations related to electric bike, such as China, please be sure to comply with the safety require-
ments for drivers in this manual. Zhejiang Okai Vehicle Co., Ltd will not bear any direct or joint
liabilities for any financial losses, losses of life, legal disputes, or any other unfavorable events that
occur due to the violation of the recommended uses indicated in this manual.
·To avoid potential injury, do not lend the electric biker to people who can't operate it. If you give the
electric bike to a friend to use, please be responsible for your friend's safety, teach them to operate
the bike, and tell them to wear protective equipment.
·Please perform a basic inspection of the electric bike before each driving. If you find that there are
loose parts, the battery life is obviously reduced, the tires are excessively worn, the steering makes
abnormal noises or malfunctions, etc., please stop using the bike immediately, and do not force it to
drive.
It may be dangerous to use this product! Learn to use the product step by step and spend enough
time in practicing. Please follow all the tips and warnings set forth in this manual to reduce risk of
injury. Even if you have enough practice, guidance or expertise, you may still lose control, collide or
fall over, which may cause serious harm to yourself or others.
1. Keep the printed instructions for further reference and read carefully before use.
2. Maximum speed allowed: 32 km/h (20mph)
3. Pregnant women, the disabled, and those who suffer from heart, head, back or neck conditions (or
have undergone operations on these parts) should not use this product.

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4. Do not use this product after taking alcohol, sedatives or psychoactive drugs.
5. Keep a distance of at least 1m/3ft from pedestrians, other vehicles and any obstacles.
6. This product can only be used when the environment permits it and the personal safety of
bystanders is guaranteed.
7. Pay attention to the obstacles in front and of those far away.
8. This product may be used by only one person. It is forbidden to use this product with others. Don't
make sharp turns when driving the bike at high speeds.
9. Avoid sudden acceleration or sudden braking; do not lean your body for acceleration.
10. Excessive forward or backward is strictly prohibited.
11. Do not misuse this product. Do not use this product on roadsides, ramps, in skate parks, empty
swimming pools, or any place similar to sliding plates.
12. Do not use this product to cross obstacles, slopes, ice or snow, nor climb up or down steep slopes,
stairs or escalators. Do not expose this product in the rain.
13. Do not use this product in places where the depth of the puddle exceeds 10cm / 3.94in, because
water may enter the motor.
14. Don't jump on this product. Don't try to use this product to do any acrobatics or activities not
intended.
15. In order to avoid distraction when riding, please do not wear earphones, earplugs, make or
answer calls, take pictures or videos or do any activities that are not related to riding so that you may
maintain an awareness of your surroundings at all times.
16. Be sure to hold both handles when riding.
17. Avoid using this product at night or in places with poor visibility.
18. When you encounter pedestrians or other obstacles, check if you can pass safely.
19. Please use this product and its accessories at an appropriate temperature. Pay attention to the
temperature requirements for battery charging.
20. Please always wear personal protective equipment (to protect wrists, knees, head and elbows)
suitable for your weight and size to avoid injury. In working areas, local laws or regulations may have
minimum requirements for helmets. In addition, it is suggested that safety mirrors be worn.
21. According to French traffic rules, reflective clothing and helmet is strongly required when riding.
22. Do not hang this product with other products or vehicles.
23. When not used, this product should be parked with the kickstand.
24. Any load added to the handle will affect the stability of the bike.
25. WARNING! The braking distance will be extended under humid conditions.
26. WARNING! If any mechanical parts are subject to great external pressure and wear, different
materials and parts may react differently. If a part exceeds the expected service life, it may suddenly
break, which may cause injury. Cracks, scratches and discoloration in the area affected by external
pressure indicate that the part has exceeded its service life and should be replaced as soon as
possible.
27. Please spend enough time practicing how to use this product, so as to avoid accidents caused by
lack of skills.
28. If training is required, the seller may provide corresponding training tutorials
29. When you are approaching pedestrians or cyclists, you may ring the bell to alert them.
30. When passing a protected passage, please dismount from the bike and walk through it.
31. Pay attention to protect your own safety and the safety of others in all cases.
32. Do not use this product for other purposes such as carrying people and objects.
33. Using the brake for long durations may cause it to heat up. Avoid touching them to prevent burns.
34. Regularly check all bolts and screws, especially the axles, folding system, steering system and
brake shaft.
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