問題の説明
While riding the scooter, the running time is short and the power is consumed quickly.
User self-check: causes and solutions
Low battery remaining
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Refer to the instruction manual and try charging for a longer period to ensure the battery is fully charged.
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Insufficient battery capacity
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問題が解決しない場合, you may need to replace the battery or check other parts of the electric scooter for faults. It is recommended that you contact the manufacturer or repair shop of the electric scooter for further diagnosis and solutions.
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Battery aging
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Customer support
If you still have questions, please contact GKB customer service: service_aftersale@geekbuying.com
For engineers
Cause Analysis
When the vehicle runs at part throttle instead of full throttle, it may be due to an old, worn or faulty battery or battery pack. The speed controller is connected between the battery and the motor, and most speed controllers have a low voltage cutoff function to prevent excessive discharge. When the battery is old, worn or faulty, the voltage may temporarily drop to zero charge state, causing the speed controller to shut down the motor. This causes the vehicle to run at part throttle instead of full throttle. The state of charge of the battery or battery pack can be determined by looking at the voltage level on the Battery State of Charge Chart.
Solutions
Determine the voltage value
If your vehicle’s instrument panel or battery has lights, those lights are voltage indicators that can be used to help determine the condition of the battery or battery pack.
If the lights drop at full throttle and rise at part throttle, that indicates the battery or battery pack has dropped a lot of voltage under heavy load.
Deep charging
Sometimes lead-acid battery packs need a deep charge to equalize the batteries and help the pack regain capacity. Try charging the battery pack for 48 に 72 hours and then see if that helps. It is a good practice to deep charge several times a year or when you notice a significant loss of capacity.
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 motorized scooter and check to see if the indicator light on the battery charger is on. If the indicator light is on, the wiring and wiring connector connected to the charger port is good and the charger port itself is good. Not all battery chargers have an indicator light that comes on when the charger is plugged into the motorized scooter only. If the indicator light does not come on, a secondary voltage test should be performed using 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 vehicle’s charger port and into the wall, then 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 fault.
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 scooter being driven.