スポーツ & 屋外

Electric Scooter Cycles On and Off

問題の説明

The electric scooter keeps turning on and off repeatedly and cannot be stopped.

User self-check: causes and solutions

Circuit fault
Check whether the circuit connection is normal
It is recommended that you seek professional technicians for maintenance in a timely manner to ensure the normal operation of the vehicle.
Battery problem
Replace the battery
Motor failure
Repair or replace engine parts
Sensor failure
Repair or replace sensor

Customer support

If you still have questions, please contact GKB customer service: service_aftersale@geekbuying.com

For engineers:

原因分析

When an e-scooter cycles on and off, an old, worn or faulty battery or battery pack is the most common cause of this type of problem.

The speed controller connects the battery to the motor, and most speed controllers have a low voltage cut-off feature to prevent excessive discharge.

An old, worn or faulty battery may cause the motor to shut down temporarily when in use, but after shutting down the voltage rises to a level above zero state of charge. This causes the motor to cycle on and off.

あ 0% state of charge is not the same as zero volts, which is usually only a few volts at 100% state of charge.

Battery State of Charge Chart can be used to check the zero state of charge voltage level of the vehicle battery or battery pack.

Solutions

Determine voltage drop

If the scooter has lights on the throttle, these are voltage indicators that can be used to help determine the condition of the battery or battery pack. If the lights go down at full throttle and go up at zero or part throttle, this indicates that the battery or battery pack has a significant voltage drop under load.

Deep charging

Sometimes a lead-acid battery pack requires a deep charge to equalize the battery and help the battery pack regain capacity. Try charging the battery pack for 48 に 72 hours and see if that helps. A deep charge is recommended several times per year or when a significant loss of capacity is noticed.

Test 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 electric scooter and see if the charger’s indicator light comes on. If the indicator light on the battery charger comes on, then the wiring and wiring connectors to the charger port are good, and the charger port itself is good. Not all battery chargers have an indicator light that comes on when the charger is just plugged into the vehicle, so if the light does not come on, you should do 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 charging port should be the same as the voltage level of the battery pack. If the charger port has male terminals, you need to be very careful to avoid shorts between the terminals or in the charger port casing (if it is metal).

Test the battery charger

Make sure there is voltage at the charger port, then test the voltage of the battery or battery pack to confirm it needs charging.

Plug the battery charger into the charger port, plug into the wall, and use a digital multimeter to test the voltage of the battery pack.

If the voltage rises slowly, the charger is charging the battery. Continue charging until the indicator shows a full charge, then test the battery voltage to confirm it has reached 100% charge.

If the charger cannot charge to 100%, there may be a problem.

Test the battery pack

The batteries are load tested by removing the battery pack from the scooter and taking out the individual cells.

The individual battery can then be tested using a car battery load tester.

Most entry level car battery load testers place a 100 amp load on the battery which is too high, so an adjustable carbon stack battery load tester is required and should be adjusted to place a 30 amp load on the battery.

Test battery pack voltage

After reading the voltage, the Battery State of Charge Chart can be used to determine the percentage of state of charge.

A good battery or battery pack will have a voltage at 100% state of charge after it has been discharged and left for a few minutes, or if it has been stored. If the voltage does not rebound to 100% state of charge within a few minutes of the battery pack being discharged, this indicates a faulty or worn cell or battery pack.

When a battery pack has been charged to 100% state of charge and has been left for a period of time and its voltage drops below 100% state of charge, this indicates a faulty or worn battery pack.

Good batteries and battery packs will return to 100% state of charge within a few minutes of the vehicle being driven.

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