Qualisports Dolphin - User Manual

Questions and Answers

D
debbie39Aug 12, 2025
What to do if my Qualisports Bicycle does not work?
- S
  Stacy MartinAug 13, 2025
  If your Qualisports Bicycle isn't working, several factors could be at play. The battery might not have enough power, so try charging it. Check for faulty connections and clean or repair them. Ensure the battery is correctly installed in its tray. Use the proper sequence to turn the bike on. Make sure the brakes are disengaged. Finally, inspect the 40a discharge fuse and replace it if it's blown.
A
andrew54Aug 16, 2025
Why is my Qualisports Dolphin Bicycle range reduced?
- M
  michaelkimAug 16, 2025
  A reduced range in your Qualisports Bicycle can stem from several causes. Ensure your tires are properly inflated. Check the battery connections, and charge the battery if it's low or faulty. If you're frequently riding on hills, against headwinds, braking often, or carrying heavy loads, try assisting with the pedals or adjusting your route. Batteries discharged for extended periods without regular charging, or those that are old, damaged, or unbalanced, can also cause this issue; in this case balance the battery. If range decline persists, contact Tech Support. Lastly, check if the brakes are rubbing and adjust them if necessary.
B
Brenda WhiteAug 19, 2025
What to do if my Qualisports Dolphin battery will not charge?
- E
  Emily ClementsAug 20, 2025
  If your Qualisports Bicycle battery isn't charging, start by checking the charger connections and adjust them. If the charger is damaged, replace it. A damaged battery or damaged wiring can also prevent charging, so consider replacing or repairing these components. Also, check the charge fuse and replace it if it's blown.
D
dwongAug 25, 2025
Why Qualisports Dolphin has irregular acceleration and/or reduced top speed?
- E
  Emily GarciaAug 25, 2025
  Irregular acceleration or reduced top speed in your Qualisports Bicycle could be due to a few reasons. Insufficient battery power is a common cause, so charge or replace the battery. Also, a loose or damaged throttle can be the culprit, requiring a replacement. Lastly, check the magnet ring for misalignment or damage, and align or replace it as needed.
A
Andrew SheltonAug 27, 2025
What to do if the motor does not respond when the Qualisports Bicycle is powered on?
- R
  Raymond StrongAug 28, 2025
  If the motor on your Qualisports Bicycle isn't responding when powered on, check for loose wiring and repair or reconnect it. Inspect the throttle for looseness or damage, and tighten or replace it as necessary. Also, check the motor plug wire for any issues, securing or replacing it if needed. If these steps don't resolve the problem, the motor itself might be damaged, requiring repair or replacement.
P
pbartonAug 31, 2025
Why Qualisports Bicycle wheel or motor makes strange noises?
- J
  Jennifer MartinezAug 31, 2025
  Strange noises coming from the wheel or motor of your Qualisports Bicycle can be caused by loose or damaged wheel spokes or the rim; in this case you should tighten, repair, or replace them. Another potential cause is loose or damaged motor wiring, which would need to be reconnected or the motor replaced.
A
Alan TorresSep 4, 2025
What causes throttle abnormality in Qualisports Bicycle?
- B
  Brittney GilbertSep 4, 2025
  If you are experiencing throttle abnormality on your Qualisports Bicycle, it may be caused by the cable on the throttle being pulled too tight. To resolve this, rotate the thumb throttle forward and backward in the position of the handlebar to allow the cable to relax slightly.
B
brandithomasSep 8, 2025
What to do for motor hall signal abnormality in Qualisports Dolphin Bicycle?
- C
  Cynthia BerrySep 8, 2025
  For a motor hall signal abnormality in your Qualisports Bicycle, check the motor cable connector on the frame and in the controller box to see if it's loose. Unplug the motor connectors and plug them back together, then try again.

Summary

Welcome to Qualisports USA

Introduction to Your E-bike

Manual Usage and General Advice

Guidance on using the manual and general advice for safe operation and maintenance.

Warnings and Safety Precautions

Rust, Water, and Corrosion Protection

Guard against rust, water damage, and corrosion following specific steps for e-bike care.

Electrical Component Precautions

Take additional precautions regarding electrical components to prevent fire hazards.

Important Safety Information

Riding Guidelines

Essential guidelines for safe riding, including helmet use, alertness, and defensive riding.

General Information

Package Contents

Lists items included in the main package and the accessory box for your e-bike.

Bike Parts Identification

Diagram and list identifying the various parts of the Quali-bike.

Assembly Instructions

Unfolding the Bike

Step-by-step guide on how to unfold the e-bike and its pedals.

Seat Post Installation

Instructions for installing the seat post battery, saddle, and rear light.

Tube Battery Installation

Guide for installing the optional tube battery and securing the bike.

Front Fender Installation

Steps for installing the front fender and attaching the front light.

Rear Fender Installation

Instructions for mounting the rear fender, including bracket placement.

Display and Settings

Reading the Display

Explanation of the display icons, buttons, and readouts for various metrics.

Basic Operations: On;Off and Headlight

How to power the bike on/off and control the headlights using the meter buttons.

Basic Operations: Assist and Walking Mode

Using the assist ratio gears and engaging the walking mode for low-speed assistance.

Basic Operations: Throttle and Cruise

How to use the throttle function and engage the cruise control mode.

Display Modes and Error Codes

Navigating through display modes and understanding error code indicators.

Battery Management

Charging and Maintenance

Guidelines for charging, maintaining, and storing your e-bike battery for optimal life.

Pre-Ride Safety Checklist

Daily and Periodic Checks

Checklist for ensuring brakes, wheels, steering, and chain are safe before riding.

Component and Accessory Checks

Ensuring frame, motor, battery, cables, and accessories are secure and functional.

Specifications

Recommended Torque Settings

Table detailing recommended torque values for various bike components.

Service and Maintenance

Inspection and Service Intervals

Recommended schedule for inspecting, servicing, and replacing bike parts.

Troubleshooting

Basic Troubleshooting Guide

Common symptoms, possible causes, and solutions for bike operational issues.

Error Code Detection

Definitions and solutions for specific error codes displayed by the bike's system.

Resources and Support

Assembly Video and Online Resources

Links to assembly videos and the Qualisports USA website for more information.

Warranty Information

Record Your Serial Number

Instructions on where to find and record your bicycle's serial number for warranty purposes.

Warranty Overview and Terms

Details on warranty coverage periods for different bike components and owner responsibilities.

Warranty Exclusions and Support

Conditions under which the warranty is voided and details on warranty service.

Qualisports Dolphin Specifications

General

Brand	Qualisports
Model	Dolphin
Category	Bicycle
Language	English