ENGWE EP-2 Boost Owner's Manual

Safety Notes

Dear users, this manual describes the essential operation and maintenance methods of the electric bike. Please consult it to familiarize yourself with the performance, features, safety notes, and maintenance needs. Contact the official after-sales team or authorized service station for any questions.

• Please comprehend and adhere to all safety notes to mitigate risk. Abide by national and local laws and regulations in public spaces. Remain vigilant and maintain a safe distance from others and vehicles.
• Operate the electric bike according to the manual's guidelines. The user is responsible for any loss resulting from failure to follow guidelines.
• This product is an electrically power assisted cycle (CE15194 standard). Pedaling is required for motor assistance. Push mode is available below 6 km/h; above 6 km/h, pedaling is needed for auxiliary motor output.
• This product is not designed for professional off-road riding or off-road mountain biking due to performance limitations.
• For your initial ride, choose a private area free of traffic. Venture onto public roads once comfortable.
• Before each ride, inspect for loose fasteners or damaged parts. If abnormal sounds occur, stop riding and seek support.
• Avoid exceeding speed limits. Never ride in areas with motor vehicles.
• Users under 16 years of age are strictly prohibited from using this product. Use is also prohibited for individuals under the influence of alcohol or drugs, those unable to participate in strenuous activities due to illness, those with balance issues, individuals exceeding weight limits, and pregnant women.
• Be careful in bad weather (snow, rain, slippery roads, ice) as braking distance may increase.
• Do not attempt to charge if the charger or power supply is wet. Ensure adherence to local safety laws when charging in public areas.
• Always use officially specified parts to avoid incompatibility issues, especially with electronic components like batteries and motors.
• For modifications, consult the official after-sales team. The manufacturer is not liable for injuries or damage from unauthorized modifications.
• To minimize injury risk, follow all prompts including "Caution", "Danger", and "Warning".

⚠️ Danger: Ignoring this warning could result in personal injury. To minimize harm to yourself and others, follow these actions.

⚠️ Warning: Ignoring this warning could result in damage to the bike and its components. Follow these actions.

⚠️ Caution: Ignoring this warning could result in minor damage to the bike or impair its normal operation. Follow these actions.

Introduction

1.1 Packing List

The package typically includes: Manual, Charger, Screwdriver, Spare parts kit, Wrench (sizes 8-10, 13-15, 14-15), Screwdrivers (M4, M5, M6), Ties, Saddle, Foldable riser and stem, Mudguard x 2, Foldable pedal x 2, Frame body, Front tire.

1.2 Components

The electric bike consists of the following main components:

• Handlebar
• Stem
• Stem quick-release
• Foldable riser
• Riser foldable handle
• Battery compartment
• Headlight
• Frame foldable handle
• Suspension fork
• Front mudguard
• Valve
• Front brake
• Foldable pedal
• Crank
• Crank set
• Saddle
• Seat post
• Seat post quick-release
• Taillight
• Rear mudguard
• Reflector
• Rear brake
• Motor
• Tire
• Rear derailleur
• Chain

1.3 Functions

The handlebar features controls and a display screen:

• Handlebar Controls: Front brake lever, Rear brake lever, Assist gear adjustment (+/- buttons), Ride data switching button (i), Shift lever, Bell, Switch button, Lamp button, Boost button.
• Display Screen: Shows Battery level indicator, Lamp display, Fault indicator, Speed display, Assist mode indicator, Assist gear display, Trip meter, Odometer, Maximum speed, Average speed, and Ride data.

Common Functions:

1. Power On/Off: Press the power button for 1 second to power on, hold for 3 seconds to power off.
2. Assist Gear Adjustment: Press +/- buttons to adjust the assist gear.
3. Assist Mode: Press and hold the button to enter assist mode (speed limited to 6 km/h, assist mode icon displayed). Releasing the button stops assist mode.
4. Boost Mode: Press and hold the Boost button for continuous extra power, useful for uphill or off-road riding. Assistance stops if pedaling ceases during the boost period.
5. Headlight Switch: Press the button to turn lights on (dimming instrument brightness); press again to turn off.
6. Riding Data Switching: Press the 'i' button to cycle through real-time speed, trip meter, odometer, maximum speed, and average speed.
7. Fault Code Indication: If the electronic control system fails, a fault code will be displayed. Refer to Section 3.3 for fault code definitions.

Quick Guide & Installation

2.1 Installation Guide

2.1.1 Installation Guide - Warning

⚠️ Warning: The bike should be disassembled and assembled by two individuals. Before assembly, ensure the power system is turned off to prevent accidental activation.

Maximum load: 150KG (330lbs).

2.1.2 Installation Guide - Unpacking

Follow these steps to unpack the bike:

1. The product is secured in its box.
2. Open the box lid.
3. Lift the box upwards.
4. Two individuals should carefully lift the bike out of the box, holding the product to prevent it from falling.
5. The assembled bike frame is shown.

2.1.3 Installation Guide - Control Area

Steps for installing the handlebar and stem:

1. Insert the stem into the frame's head tube.
2. Rotate the stem and tighten with M5 screws.
3. Ensure correct installation angle (>90°).
4. The stem should be correctly installed.
5. Lock the stem in place.
6. Ensure the white safety line on the stem remains covered.
7. Tighten M5 screws to 12-15 Nm.
8. Ensure the handlebar is centered and perpendicular to the top tube of the frame. Improper steering alignment can lead to loss of control or falls.

2.1.4 Installation Guide - Front Mudguard and Headlight

Steps for attaching the front mudguard and headlight:

1. Protect the instrument screen; do not press it.
2. Show mounting position for the headlight.
3. Remove screws and nuts for later use.
4. Attach the front mudguard.
5. Tighten M4 screws to 5-8 Nm.
6. Attach the headlight. Tighten M6 screws to 6-10 Nm.

2.1.5 Installation Guide - Wheel

Steps for installing the wheel:

1. Show the rear wheel assembly.
2. Remove necessary components for later use.
3. Show the wheel mounting process.
4. Observe the tire tread pattern.
5. Align the disc brake rotor.
6. Insert the wheel into the frame dropouts.
7. Tighten wheel nuts to 35-40 Nm using a 15mm wrench.

2.1.6 Installation Guide - Saddle Adjustment

Steps for adjusting the saddle:

1. Show the assembled bike.
2. Ensure the white safety line on the seat post remains covered.
3. Insert the seat post into the frame and lock it.
4. Tighten the M6 bolt.
5. Adjust the saddle forward/backward and angle as needed.
6. Tighten the M6 bolt to secure the saddle position.

2.1.7 Installation Guide - Mudguard and Rear Rack

Steps for installing the mudguard and rear rack:

1. Show the rear wheel and frame assembly.
2. Attach the rear mudguard and rear rack, removing screws for later use.
3. Tighten M4 screws to 10-15 Nm.

2.1.8 Installation Guide - Taillight

Steps for installing the taillight:

1. Show the rear rack assembly.
2. Align the taillight with the mounting holes on the rack.
3. Secure the taillight, tightening screws to 5-8 Nm. Ensure holes are aligned.

2.1.9 Installation Guide - Pedal

Steps for installing the pedals:

1. Distinguish between left (L) and right (R) pedals.
2. Attach the left pedal to the crank arm, tightening with an M6 wrench.
3. Attach the right pedal to the crank arm, tightening with an M6 wrench, then secure with a 15mm wrench to 35-40 Nm.

2.1.10 Installation Guide - As Completed

Congratulations! Your bike has been assembled successfully!

How to Fold the Bike

Follow these steps to fold the bike:

1. Release the seat post clamp.
2. Lower the seat post.
3. Release the handlebar stem clamp.
4. Fold the handlebar stem down.
5. Release the frame hinge clamp.
6. Fold the frame.
7. The bike is now folded.

How to Remove the Battery

Steps to remove the battery:

1. Pull out the dust plug.
2. Locate and release the battery latch mechanism.
3. Slide the battery out of its compartment.

How to Charge

Two Charging Methods

• Method 1: Charge the battery directly on the frame via the charging port.
• Method 2: Remove the battery for charging (refer to Section 2.3).

Note: The battery retains a small charge when shipped. Fully charge it before first use. Use only the manufacturer's original charger; non-original chargers may cause battery damage.

Steps:

1. Start of charging: Fully insert the charger connector into the battery's charging port, then plug the charger into a power socket.
2. Status indication: A red indicator lamp means charging is normal; a green lamp indicates the battery is fully charged.
3. Charging time: Approximately 6-8 hours.
4. End of charging: Unplug the power plug first, then disconnect the charger connector from the battery. Close the battery's dust plug.

Safety Notes:

⚠️ Warning: The charger contains high-voltage components. Unauthorized repairs are prohibited due to danger. Keep the battery and charger in a safe, well-ventilated, dry area, away from children and flammable/explosive items. Do not charge outdoors in rain or similar conditions.

⚠️ Warning: If you detect an unusual odor or if the battery or charger becomes excessively hot during charging, stop charging immediately and contact the after-sales team.

Quick Operation

Before using the product, ensure proper assembly, secure fastenings, and a fully charged battery. Take appropriate protective measures for riding.

Step 1: Adjust the Handlebar and Saddle

Adjust the handlebar and saddle to appropriate heights for the rider. Ensure the seat post quick-release hoop and stem quick-release hoop are securely fastened. For optimal comfort, adjust the handlebar to suit your riding style. The saddle should be at your pelvic height and not exceed the maximum safety scale.

Step 2: Power On and Adjust the Headlight

1. Turn on the battery's power supply by inserting the key into the battery lock and rotating it fully until aligned parallel to the frame.
2. Press the power button for about 1 second; the screen will light up.
3. Turn on the lights and adjust the headlight to illuminate the area up to 10 meters ahead.

Step 3: Gear Shift

Adjust the ride mode according to road conditions and personal needs. The bike features 5 assist gears. Use the power +/- buttons to shift gears. The 1st gear is suitable for flat roads; shift to higher gears for inclines. When the bike is in PAS mode and the battery is low, it can still be ridden like a regular bike.

Step 4: Ride on the Road

Please wear a helmet before riding on the road.

Step 5: Brake

The left brake controls the front wheel, and the right brake controls the rear wheel. To brake, engage the right brake first, followed by the left, to slow down the bike to a complete stop.

⚠️ Warning: Avoid abruptly applying the front wheel brake on its own, as this can easily destabilize the bike's center of gravity and lead to a fall.

Instrument Settings

If default settings are not suitable, you can personalize them:

1. Enter Personalized Settings: While powered on, press and hold the +/- buttons simultaneously for more than 2 seconds.
2. Navigate Settings: Press the +/- buttons to switch between the 18 setting interfaces (01P to 18P).

Key Settings:

• 01P/bL: Backlight brightness (1=darkest, 3=brightest).
• 02P/Un: Unit setting (00/U-2 for metric, 01/U-1 for imperial).
• 03P: Rated voltage (default 48V; modification not recommended as it affects battery level indication).
• 04P: Auto shutdown time (00-60 min; 00=no shutdown; default 10 min).
• 05P: Assist gear settings (European: 0-3, 1-3, 0-5, 1-5 gears; American: 0-7, 1-7, 0-9, 1-9 gears; default 0-5).
• 06P/Ld: Wheel diameter (1-32 INCH; default 23 INCH; modification not recommended as it affects speed indication).
• 07P/n-: Speed sensor magnet number (1-255; default 06; modification can cause abnormal speed indication).
• 08P/LS: Speed limit (25km/h European version, cannot be modified; 28MPH American version, can be modified up to 28MPH).
• 09P: Zero speed start/Non-zero speed start (00=zero speed start, 01=non-zero speed start; default 00).
• 10P: Drive mode (00=assist only, 01=electric only, 02=assist + electric).

Adjusting and Saving Settings:

1. Press to enter parameter change state (parameter flashes). Use +/- to adjust.
2. Press to save settings and return to the interface.
3. Press and hold to save settings and exit.

Note: Settings 11P through 18P are not supported.

Restore Factory Settings

Use this function if current settings are unclear:

1. Enter Factory Setting Interface: Press and hold the +/- buttons for more than 2 seconds. 'dEF' will appear.
2. Select Reset: Press +/- to choose 'Y' (reset) or 'N' (do not reset).
3. Confirm Reset: Press to confirm. 'dEF-D' will display, and the instrument will automatically restore factory settings and restart.

Notes for Maintenance

Safety Guidelines for Electric Bike

• Do not park in lobbies, evacuation stairs, or walkways.
• Do not charge or park in residential buildings; keep away from combustibles. Charging time should not exceed 12 hours.
• Prevent water from entering electrical components during cleaning.
• When adjusting saddle/stem height, be careful not to expose safety scales.
• Users and dealers are prohibited from modifying the bike without authorization (e.g., battery configuration, circuit modification, bulb power increase, audio device installation).
• Do not touch live components with wet hands or metal objects.
• Do not disassemble electrical components without authorization to prevent foreign matter entry.
• Do not expose the bike to prolonged sunlight or rain to prevent aging.
• Clean the frame with water and neutral detergent. Do not wash internal parts with water.
• Avoid touching hot surfaces (e.g., disc brakes, motor) after use to prevent burns.

Note: Maintenance by non-professionals is strictly prohibited. Contact customer service or a designated professional for repairs.

Ride Safely

• Individuals under 16 are prohibited from operating electric bikes. Do not lend the bike to inexperienced riders.
• Ride in non-motorized lanes, respecting local speed limits.
• Carry people or articles according to laws.
• Always wear a helmet and secure the chin strap.
• In rain/snow, braking distance increases; slow down and avoid riding in severe weather.
• Obey traffic rules. Do not ride after drinking or with one hand off the handlebars.
• Wear bright, non-restrictive clothing and low-heeled or sports shoes.

Notes During Ride

1. Abide by traffic rules and take safety precautions.
2. Wear a safety helmet.
3. Start the bike gradually to prevent losing control.
4. In bad weather, ride slowly and carefully to prevent sideslip and falls.
5. Shift to a lower gear before stopping to facilitate the next ride.

Inspection Before Ride

1. Check indicator lamps and battery level.
2. Verify front and rear lights are functional and correctly angled.
3. Check horn functionality.
4. Confirm handlebar and seat post are properly adjusted and fastened.
5. Check brake levers for reliable and flexible operation; taillight should activate during braking.
6. Check tire pressure, look for cracks, abnormal wear, or embedded objects (nails, glass).
7. Ensure wheel screws are tight and pedal reflectors are present and clean.

Notes for Push and Stop

1. Turn the power switch off when pushing to avoid accidental throttle activation.
2. Use boost mode when pushing uphill or carrying heavy objects.
3. When stopping, use the kickstand on flat ground and power off the bike.
4. Perform regular maintenance and cleaning.

Maintenance and Self-Inspection of Bike

• The bike is adjusted before leaving the factory. Contact the manufacturer/supplier for any issues.
• Maintain proper tire pressure.
• Regularly check and adjust components like handlebar, riser, saddle, seat post, axles, bottom bracket, flywheel, and chain. Ensure transmission parts are flexible and free of abnormalities. Tighten loose nuts/screws.
• Lubricate parts (axle bearings, bottom bracket, pedal bearings, etc.) with 3# calcium-based grease every six months. Lubricate the chain, derailleur cable, and kickstand every two months with 30# oil.
• Replace worn parts (brake pads, chain, tires) with identical models.
• Do not use high-pressure water flow or steam jets for cleaning. Avoid wiping the battery or interface with wet towels.

Maintenance of Motor

• Do not open the motor base or end cover.
• Keep the motor clean and free from foreign matter, corrosive liquids, or gases. Protect the motor housing from impact or heat.
• The motor has a waterproof grade of IPX5. Do not flush with a water gun or submerge in water, as this can cause short circuits and damage electrical components.

Maintenance of Battery

• The lithium battery offers high capacity and a long service life. Proper usage extends its life. Avoid running the battery completely low and do not store the bike for extended periods without charging.
• Fully charge the battery for the first use. Recommended charging time is 6-8 hours, not exceeding 12 hours.
• If storing the bike long-term, charge the battery for over 2 hours monthly. Never store the battery in an under-voltage state, as this causes irreversible damage.

⚠️ Danger: Do not disassemble the old battery without authorization. Battery recovery must be done at designated locations.

⚠️ Warning: Keep the battery away from flames or high-temperature heat sources. Never throw the battery into a fire. Avoid direct sunlight in hot conditions.

Troubleshooting

Fault Codes

The ENGWE electric bike has a fault detection system. If the electrical system fails, the instrument will display a fault code. Stop operation immediately and contact the ENGWE after-sales team if a fault code appears.

Service Guide

Notes for Warranty

• Accessories are covered according to the warranty period.
• The warranty period starts from the date of purchase.
• Charger, battery, and motor disassembled without authorization are not covered.
• Other parts have a three-month warranty for quality problems.
• Maintenance for other parts must be done at a professional site; unauthorized disassembly is prohibited. Control unit, battery, and charger must have intact labels.
• For repairs, present the warranty card, invoice, and certificate of conformity.
• Battery issues are subject to a separate warranty. Batteries must be returned to the manufacturer for testing to determine warranty coverage.

Warranty Card

Repair Record

Warranty Principles

1. Use the product as described in this manual. The company will fulfill warranty obligations for product quality failures per consumer protection laws.
2. The company is responsible for repairing faults outside warranty coverage and main components after the warranty period expires, with appropriate charges.
3. For battery replacement beyond the warranty period, the company provides the battery at factory cost. The battery must be returned to the manufacturer.

Warranty Coverage and Duration

Note: The limited warranty does not apply to subsequent owners or transferees.

Product Parameters

*The maximum range is measured in 1st gear with full charge and a load of 75 kg on a flat surface at 25°C and 70% relative humidity. Actual results may vary.

Contact Information

Service hotline:

• +33805980036 (EU) Working time: 9am to 6pm (GMT+1), Monday to Friday.
• +39 800776809 (EU) Working time: 9am to 6pm (GMT+1), Monday to Friday.
• +18442007117 (U.S.) Working time: 9 a.m. to 6 p.m. (PST-8 Time), Monday to Friday.

Website: www.engwe.com, www.engwe-bikes-eu.com, www.engwe-bikes-uk.com, www.engwe-bikes.de

Email: service@engwe-bikes.com

For questions or suggestions about the manual, please send them to the email address above.