ニュース スポーツ & 屋外

Electric Scooter Only Runs Without Load

Problem Description

The vehicle can travel when it is unloaded. しかし, when the rider’s weight is placed on the vehicle, it does not move.

User Self-Diagnosis: Causes and Solutions

Battery Fault
  1. Check the electric scooter’s battery to ensure it is functioning properly. If a battery fault is detected, a new battery will need to be installed.
  2. Ensure the electric scooter is fully charged. Insufficient charging can prevent the vehicle from moving. It is recommended to charge the battery promptly and maintain a full charge.
  3. Inspect the electric scooter’s motor and control system to ensure they are functioning correctly. If faults are found, repairs or replacement of components should be performed promptly.
Charging Insufficient

Customer Support

If you still have questions, please contact GKB Customer Service service_aftersale@geekbuying.com.

For Engineers

Cause Analysis

When the rider is on the vehicle and in motion, the battery pack experiences a power drop under load, unable to provide sufficient electricity to propel the scooter with the rider on board, or the motor may stall and run unevenly under load.

This could be due to the battery pack aging, wearing out, or experiencing internal faults. さらに, issues with the charging system may prevent the battery pack from charging properly.

Solutions

Deep Charging
Sometimes, a lead-acid battery pack needs a deep charge to balance the cells and help restore capacity. Try charging the battery pack for 48 に 72 hours and then see if it helps. It’s good practice to perform a few deep charges annually or when significant capacity loss is noticed.
Testing the Battery Charger Port
If the battery charger is plugged into the wall, unplug it. Plug the battery charger into the battery charger port on the vehicle and check if there is an illuminated indicator light on the battery charger. If the indicator light on the battery charger lights up, this means the wiring and wire connectors connected to the charger port are good, and the charger port itself is also good. Not all battery chargers have an indicator light that illuminates when the charger is only plugged into the vehicle, so if the light does not come on, you should perform a secondary voltage test with a multimeter as described below.
  • If you have a multimeter, you can test the voltage at the battery charger port. The voltage level at the charger port should match the voltage level of the battery pack. If the charger port has male terminals, you need to be very careful to avoid shorting the terminals or the charger port housing (if it is metal).
Testing the Battery Charger
  • Ensure there is voltage at the charger port, then test the voltage of the battery or battery pack to confirm if it needs charging.
  • Plug the battery charger into the charger port on the vehicle and into the wall, then use a digital multimeter to test the voltage of the battery pack.
  • If the voltage rises gradually, it indicates the charger is charging the battery. Continue charging until the indicator light shows a full charge, then test the battery voltage to confirm if it has reached a 100% charged state.
  • If the charger fails to charge to 100%, there may be a fault.
Testing the Battery Pack
Remove the battery pack from the scooter and take out individual batteries to load-test their cells.
You can then test each battery using an automotive battery load tester.
Most entry-level automotive battery load testers apply a 100-amp load to the battery, which is too high, so a variable carbon pile battery load tester should be used and adjusted to apply a 30-amp load to the battery.
Testing the Battery Pack Voltage
After reading the voltage, you can use the battery charge state chart page to determine the percentage of the charge state.
A good battery or battery pack will be at 100% charge state after being discharged and left for a few minutes, or if stored. If the battery pack does not rebound to a 100% charge state within a few minutes after being discharged, it indicates the battery or battery pack is faulty or worn.
When a battery pack has been charged to a 100% charge state and its voltage drops below 100% charge state after being left for some time, this indicates the battery pack is faulty or worn.
Good batteries and battery packs will recover to a 100% charge state within a few minutes after the vehicle has been driven.
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