The service life of the battery is not only related to the quality of the production plant and the system configuration of the electric vehicle, but also has a great relationship with the use and maintenance of the consumer. Therefore, to use the electric bicycle, one must carefully select the brand, understand its quality status and service commitment, in order to obtain a good quality electric bicycle. The second is to understand the basic knowledge of the use and maintenance of some batteries.
Problems in use and maintenance
1. Maintain the battery's power state. Every day, riding an electric bicycle, no matter 10-15Km, should be recharged, so that the battery is in a "full state" for a long time, and it will be charged on the same day. After running out for a few days and then refilling, it is prone to vulcanization and the capacity is reduced.
2. Perform regular deep discharge. It is recommended that you use a deep discharge after two months, that is, long-distance riding until the under-pressure indicator flashes, the battery runs out, and then recharges to restore the battery capacity. It also gives you an idea of ​​the current capacity level of the battery and whether it needs maintenance.
3. It is forbidden to store at a loss. Loss of storage of the battery will affect the service life. If the idle time is too long, the battery damage will be more serious.
4. Regular inspection. If you buy a new car with a continuous behavior of 50Km, there will be a serious reduction in the continuous line within three months, such as more than ten kilometers. At this time, you can check the voltage value of the external terminal of the battery with a multimeter. Generally, the full charge should be 39-42 volts, if it is few Volt, or to open the battery box, if one of the battery voltage is lower than 10.5 volts, it may be a short circuit inside the internal cell, in this case should be repaired and replaced by the maintenance station, so as not to damage the other two good batteries. Also check the charger for malfunctions.
5. The design of the electric moped is 75Kg, so avoid overweight items. Use the ankles to help when starting and going uphill. Because the motor current increases at this time, the battery is discharged too fast and the voltage drops rapidly. The smaller the discharge depth of the battery each time, the longer the life of the capacitor. Therefore, reducing the large current discharge can extend the battery life and increase the mileage. In addition, regardless of the battery capacity of the battery, the user should develop a good habit of using the battery.
Keep the surface of the battery clean for a long time. Do not expose it to the sun when storing it. Keep the car in a cool, ventilated and dry place.
In addition, it is normal for the battery capacity to decrease with temperature in winter, which is 25 ° C, and the general -10 ° C capacity is 80%.
Common faults and answers for batteries
1. The battery is not charged or charged.
(1) Battery life is terminated - replace the battery
(2) The fuse inside the battery fuse is broken - replace the fuse
(3) Poor contact between the battery fuse and the fuse seat - adjust the position of the two to make it in good contact or replace the fuse
(4) The charger has no output voltage or low output voltage - replace the charger
(5) Poor contact between the charger and the AC 220V power supply - re-plug the power supply
(6) The charger indicator light is abnormal and causes a false full - replace the charging appliance
2. The power indicator on the instrument panel is not lit and the motor is running normally.
(1) There is no voltage between the positive and negative leads of the dial - poor contact of the connector or open circuit of the lead - re-plug or change the line
(2) Luminous tube damage - replace the LED tube
(3) There is an open circuit on the dial circuit board - replace the instrument circuit board
3, the motor stops when it turns
(1) The battery is low - charge the battery
(2) Poor contact of the battery contacts - adjust the contact position or polish the contacts
(3) Poor contact between the fuse tube and the fuse holder in the battery case - adjustment or replacement makes it in good contact
(4) Adjust the inside of the photosensitive tube of the sensor to have dirt - clean or replace the photosensitive film to wipe the photosensitive tube, if still can not eliminate the fault, replace the speed control handle
(5) There is a fault in the controller - replace the controller
(6) The speed control handle leads are broken and not broken - replace the lead
(7) The brake power off switch is faulty - adjust or replace the brake power off switch
(8) Poor contact after ablation of the power lock - re-plugging to make it in good contact
(9) Virtual connection in the line connector - re-plugging to make it in good contact
(10) Carbon brush, wire, winding soldering, virtual connection in the motor - repair or replace the motor
4. Open the electric door lock with the key, but the battery indicator on the instrument panel does not light, and the motor does not turn when the rotation adjustment is turned on. What is the reason?
(1) The fuse on the battery case burns out and the fuse is replaced.
(2) Poor contact in the battery case, need to contact the fuse
(3) The contacts on the battery case are in poor contact, and the contacts need to be in good contact.
(4) The contacts on the battery box are burnt out, and new contacts need to be replaced.
(5) The electric door lock burns out and needs to be replaced with a new electric door lock.
(6) The battery lead in the battery case is broken, and the line needs to be connected.
(7) The battery inside the battery box is broken, need to change the battery
(8) Electric door lock lead or contact lead, open circuit or poor contact, need to be rewired
5. Turn on the electric door lock with the key to turn on the power. The battery indicator of the instrument panel is on, but when the speed is adjusted, the motor does not turn. What is the reason?
(1) The controller is damaged, replace the new controller
(2) The speed control handle is damaged, replace the new speed control handle
(3) The brakes are broken, the handles are burned out, and the brakes are replaced.
(4) Internal damage of the motor, replacement of new motor
(5) The wire on the car is broken, and the line is reconnected.
6. Open the electric door lock with the key to turn on the power, and the motor rotates immediately. What is the reason?
(1) The speed control handle is damaged, replace the new speed control handle
(2) The controller is damaged, replace the new controller
7. After the battery is charged for 8 hours, the electric bicycle only runs 10 kilometers. What is the reason?
(1) Battery aging, battery should be replaced
(2) The motor is partially short-circuited, the current is too large, and the new motor is replaced.
(3) The controller is damaged, replace the new controller
(4) The charger output voltage is low, the battery charge is not full, and the new charger is replaced.
8. The speed of the electric bicycle is obviously not as fast as before. What is the reason?
(1) The motor is partially short-circuited and the motor is replaced.
(2) The controller is damaged, replace the controller
(3) The speed control handle is damaged, and the speed control handle is replaced.
(4) Inflexible mechanical failure
Battery self-discharge reason
When a fully charged battery is left unused for a long time, it will gradually lose its power. This phenomenon is called self-discharge. For a fully charged battery, if the capacity decreases by no more than 2% every day and night, it is normal self-discharge, and more than 2% is faulty.
The main reasons for self-discharge are: 1 the electrolyte is impure, the potential difference is formed between the impurities and the plates and the different impurities deposited on the plate, and the partial discharge is generated by the electrolyte; 2 the electrolyte overflowing the battery is accumulated in the cover On the plate, the positive and negative poles form a passage; the 3 pole active material falls off, and the lower sediment excessively shorts the plate; 4 the battery is left unused for a long time, the sulfuric acid sinks, the lower specific gravity is larger than the upper part, and the potential is generated in the lower part of the plate The difference causes self-discharge and the like.
After a self-discharge failure, the electrolyte should be poured out, the plate group removed, the separator removed, and the plates and separators rinsed with distilled water, and then reassembled to recharge the new electrolyte.
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