ENGWE-BIKES

Importance

When using the electric bicycle, basic safety precautions should always be followed, including the following:

1. Read all instructions.
2. To protect against fire, electric shock and injury to persons, do not immerse cord, plugs, or e-bike in water or other liquid.
3. Close supervision is necessary when the e-bike is used by or near children.
4. Unplug from outlet when not in charging and before cleaning.
5. Do not operate the e-bike with a damaged cord or plug or after the e-bike malfunctions, or has been damaged in any manner. Take the e-bike to the nearest authorized service bike shop for examination, repair or adjustment.
6. The use of accessory attachments not recommended by the e-bike manufacturer may result in fire, electric shock or injury to persons.
7. Do waterproof when using on a rainy or snowy day.
8. Do not let cord hang over the edge of table or counter, or touch hot surfaces.
9. Do not place on or near a hot gas or electric burner, or a heated oven.
10. Always attach the plug to the battery first, then plug the cord into the wall outlet.
11. Do not use the bike for other than intended use.
12. Save these instructions.

SAVE THESE INSTRUCTIONS

Electric Bicycle

Note: This is a general manual. The frame style of the electric bicycle (e-Bike) you have may differ from the pictures shown in this manual.

Models:

• C20
• C20 PRO

Read This First: Safety and Compliance with the Law

Congratulations on your purchase of your new e-bike. Your new e-bike is an excellent piece of personal transportation equipment that will give you good service for many years.

Before you start using your e-bike, please be aware of a few important points. Please read this section carefully.

Observe Laws Regarding the Use of Battery-Operated Bicycles

Your e-bike is designed and manufactured to meet safety requirements as a battery-operated bicycle. However, state and local laws governing the use of battery-operated bicycles on public roadways, parks, and other open areas may differ. Please check with your local authority before using your e-bike in public areas.

Observe Laws Regarding the Use of Bicycles

Note that all laws regarding the use of bicycles in public areas, such as those mandating the use of helmets and the use of infant seats, will automatically apply for e-bikes. Check with your local authority on what restrictions might apply.

The Lithium-ion Battery of Your e-Bike

Your e-bike is equipped with the latest battery technology. The lithium-ion battery is much lighter than lead- or nickel-based batteries used in some older models.

Your First Ride

Please be VERY CAREFUL when you are ready to get on your e-bike for the first time, as the e-bike moves significantly faster than a regular bicycle in active power-assisted mode. Take your e-bike to an area with a lot of open space before you start. Do not start pedaling hard as soon as you get on the e-bike (as you normally would with a regular bicycle), as the e-bike will accelerate under pedal-assist mode and you may be unprepared for the sudden increase in speed. However, after a few times, you will enjoy using the pedal-assisted function.

Assembling Your New e-Bike

If you purchased your e-bike unassembled, please follow these instructions to assemble your e-bike under the guidance of an adult or a qualified technician. Assembly is quite easy as most of the parts are already assembled; you only need to put a few large pieces together to complete the job.

You may click to the following link to view the demonstration of assembling the e-Bike: www.engwe-bikes.com (Note: The link is subject to change without advance notice).

Name of each Part

• LCD meter
• Lifting buckle of handlebar
• Folding handle of handlebar
• Highlight headlamp
• Mechanical front suspension
• Rubber tire
• Build in hidden battery
• Detachable backseat
• Saddle lifting buckle
• High speed and strong motor

Check that the Package is Complete and Undamaged

Your e-bike comes in a carton containing the following:

• The main body of the e-bike: consisting of the frame, the rear wheel, the gear and chain, the rear brake, the battery.
• The handlebar subassembly with the battery's keys: the handlebar subassembly is connected to the main body by brake cables and electrical wires. The handlebar has brake levers and gear control. The right handle also has a control for the throttle mode, a battery charge level indicator, and the ignition lock.
• The Seat: attached to its pedestal stem.
• The front wheel
• Front light: connected to the main body by an electrical wire.
• Other parts: One charger, a pair of foot pedals, and this manual, contained in a separate box.

Assembly - Step 1: Attach the handlebar subassembly

Stand the main body of the e-bike on the kickstand. Stand up and lock the steering column at the front of the main body frame. Insert the stem of the handlebar subassembly into it. Ensure the fork (holding the front wheel) points forward and orient the handlebar accordingly. Insert the stem fully and tighten from the top using the quick lock.

Assembly - Step 2: Attach the Front Wheel and the Front Light

Ensure the fork from the steering column points forward. Place the front light within the fork, fitting it to the bolt at the back of the steering column base. Attach the supports (one on each side) to the fork base using two small bolts. After all three points (the dorsal point and 2 support points) are properly attached, use the multi-wrench to tighten.

Assembly - Step 3: Attach the Front Wheel and Adjusting the Front Brake

Ensure the fork from the steering column points forward. Remove the protective bar from the front fork. Place the front wheel within the fork and the brake disc within the brake block. Seat the axial stem properly within the receptacles at the tips of the fork, and tighten the nuts with the multi-wrench. Ensure the front wheel moves freely and does not wobble. Reposition and re-tighten if necessary.

Test the brake by lifting the front of the e-bike and spinning the wheel. Apply the brake at the handlebar to stop it. If the wheel does not spin freely or cannot be stopped, re-adjust the clearance.

Caution: Do not operate the e-bike until both the front and rear brakes are operational.

Assembly - Step 4: Installing the Seat and Pedals

Insert the pedestal stem of the seat into the seat column of the main body frame and tighten using the built-in lever.

Attach a pedal on each side of the crank and tighten with the multi-wrench.

Inflate the tires to proper pressure.

At this point, your e-bike is a functional bicycle, though not yet battery-operated. Check all tightening points. Take a short ride. Adjust the handlebar height, and seat height and tilt, if necessary, for maximum comfort.

Assembly - Step 5: Charging the Battery

Remove the charger, attach the power cord, and plug into a wall outlet. Insert the plug of the smaller cable into the battery's charging terminal. The LED on the charger glows RED while charging and GREEN when complete. Turn the battery OFF while charging. When the LED turns Green, disconnect the charger and cover the terminal with the rubber cap.

The battery has LEDs for charge level indication, as does the handlebar. When the battery is installed and turned ON, these LEDs show the charge level.

You are now ready to start using your e-bike.

Operating Your New e-Bike

Your e-bike is driven by a motor embedded in the rear wheel hub, powered by a battery. The motor's power and acceleration are controlled by your chosen power-assisted mode.

You can configure the e-bike for pedal-assist-only mode or full power mode (check local laws for permission). In full power mode, you can use the hand throttle.

Handlebar's Functions

C20 PRO Handlebar Controls:

• LCD meter
• Shift gear display
• Bicycle Bell
• Light switch
• Turn ON/OFF lock
• Shift control button

C20 Handlebar Controls:

• Shift gear display
• Battery charge level indicator
• Light switch
• Shift control button
• Turn ON/OFF lock
• Horn switch

Your First Ride

Please be VERY CAREFUL when riding for the first time, as the e-bike accelerates faster than a regular bicycle in power-assisted mode. Ride in an open space. Do not pedal hard immediately; the e-bike will accelerate quickly. After a few rides, you will enjoy the pedal-assisted function.

Pedal-Assisted

Turn on the ignition lock to use pedal-assist mode. Power assist is triggered when you pedal forward and stops when you stop pedaling. Apply light force continuously. Applying a brake automatically stops power assist. Power assist turns off at the maximum speed of 15 mph.

Hand Throttle Control

Power assist is controlled by the throttle on your right hand. Twist the throttle from its resting position to increase power. Release the throttle to slow down. Apply brakes if necessary. You do not need to pedal when using the hand throttle, but pedaling can conserve battery.

Charging Your e-Bike Battery

Your e-bike uses a lithium-ion battery requiring a specific charger. Using an unsuitable charger can cause overheating, fire, or explosion. Contact your dealer for a replacement charger if lost or damaged.

Charge the battery while the e-bike is not in use, with the ignition lock turned OFF. Do not place the charger or battery near flammable substances, infants, or small children. Remove valuable objects from the vicinity during charging.

Charging time depends on the battery level. A fully discharged battery takes about 6 hours to recharge. The charger LED turns GREEN when charging is complete. Disconnect the charger then. Do not leave the charger connected for extended periods after charging (overnight is acceptable).

It is normal for the charger and battery to be slightly warm during charging.

Maximizing the Riding Range

Several factors affect electrical energy use and riding range:

• Fully charge the battery before a long journey.
• Rough roads and hilly terrain consume more energy.
• Frequent speed changes consume more energy.
• Carrying more weight consumes more energy.
• Keeping tires properly inflated, and the e-bike clean and lubricated saves energy.
• Ensure wheels move freely when brakes are not applied; check brake adjustments frequently.
• Pedaling while riding uses less electrical energy and increases range.
• When the ignition lock is off, the e-bike functions as a regular bicycle. For long stretches on level or downhill terrain, turn off the battery and pedal as a regular bicycle to conserve energy.

Care and Maintenance for Your New e-Bike

Keep your e-bike dry, clean, and lubricated, similar to a regular bicycle. Avoid parking in exposed areas.

Check brake effectiveness before each use.

For your e-Bike:

• Designed for regular country road use for a single person. Extreme maneuvers (off-road, jumping, excessive load) can damage the e-bike and cause injury.
• Do not use high-pressure water streams for cleaning, as water can seep into the motor or wiring compartment, causing rust or short circuits.
• Avoid parking in rain or snow. After riding in wet conditions, bring the e-bike inside and dry it thoroughly.
• Do not lose keys. If one key is lost, make a backup copy. If both keys are lost, the e-bike cannot be turned on.

Special Care for the Battery and the Charger:

• Use only the supplied charger. Contact your dealer for replacements if lost or damaged.
• Do not open or alter the battery or charger.
• Keep the battery away from fire, corrosive substances, and do not immerse it in water or other liquids.
• Avoid prolonged exposure to high temperatures (e.g., direct sunlight).
• Do not short-circuit the battery poles.
• Battery charge capacity decreases with use. If it holds insufficient charge, contact your dealer. Under normal use, the battery lasts for 1000 charge/discharge cycles.
• If storing the battery for an extended period, charge it fully and recharge every 3 months. Store in a cool place.
• The battery is designed for high capacity and long life. Do not use it to power other electrical devices, as this can damage the battery, shorten its life, or cause fire/explosion.

Specifications

Safety

These safety precautions are provided for your benefit to protect you and others. Please read and follow them carefully to avoid unnecessary injury, damage to the product, or damage to other property.

Battery Safety

• CAUTION: Do not throw the battery into a fire.
• CAUTION: Do not overheat the battery.
• CAUTION: Do not connect the battery to other appliances besides your battery.
• CAUTION: Use only the specified charger to charge the battery.
• CAUTION: Do not take apart or modify the battery. Disassembly Prohibited. (Electrolyte leakage, overheating, and/or rupture may result from abuse.)
• CAUTION: Do not connect positive and negative terminals using metallic objects.

Battery Charger Safety

• CAUTION: Do not take apart or modify the charger. Disassembly Prohibited.
• CAUTION: Do not subject the charger to shocks (e.g., by dropping). Keep the charger away from water. Overheating, fire, or electric shock may result.
• CAUTION: Do not touch the charger with your skin for long periods during charging. Burning of the skin may result, as external temperature may become 40°C-60°C (104°F-140°F).
• CAUTION: Do not cover the charger or place objects on it. Overheating, fire, or electric shock may result.
• CAUTION: Place the charger firmly on a flat, dry surface. Using the charger upside-down or stretching the cable may result in malfunction, fire, or electric shock.
• CAUTION: Do not short-circuit the terminals by using metallic objects. Overheating, fire, or electric shock may result.

Warnings

• WARNING: Keep the battery away from water. Pouring water on the battery may result in short-circuit, overheating, or permanent damage.
• WARNING: Do not submerge the battery. Soaking the battery in water may cause irreparable damage.
• WARNING: Do not apply pressure to the cable or plug. Placing the cable tightly between a wall and a window frame, or placing heavy objects on the cord/plug may result in electric shock or fire.
• WARNING: Be sure to insert the plug securely into a wall socket. Electric shock and overheating may result, causing fire.
• WARNING: Do not use the charging plug and/or power source plug when they are dirty, wet, or dusty. Insulation failure due to moisture may cause fire. Pull out the power source plug and clean it with a dry cloth.
• WARNING: To remove a cable from a socket, pull the plug, not the cable. Always pull the charging cable gently.
• WARNING: Do not touch the plug with wet hands. Electric shock may result.
• WARNING: Keep out of reach of children or pets. Electric shock or injury may result.
• WARNING: Do not attempt to use another maker or model's charger. Overheating, fire, or electric shock may result.
• WARNING: Do not rotate the pedals when charging the battery while it is mounted on the bicycle. The cord may twist around the pedal or crank, damaging the plug and causing electric shock or fire.
• WARNING: Do not apply voltage over the rated value to the charger.
• WARNING: Do not use sockets, correctors, or other wiring devices with a power source other than standard rated voltage (AC110-240 volts). Overheating, fire, or electric shock may result.
• WARNING: Do not use damaged components (charge case, power cord, plug, etc.). Electric short, short-circuit, or fire may result.

Trouble Shooting

As one or more causes of failure might lead to the failure phenomenon, you should find out the true cause(s) and then take the appropriate solution(s) to rectify the problem. In case of doubt, please consult a qualified technician for service, repairs or maintenance.

Company Information

Company: Shenzhen Big Fish Sports Technology Co., Ltd

Address: Room 207, Jiangnan Building, Yongxiang Rd, Bantian St, Longgang Dist, Shenzhen, Guangdong, China

Post Code: 518129

Email: service@engwe-bikes.com

Tel: +86 134 1744 2586 (CN)

The manufacturer reserves the right to change the features of the product without prior notice.