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Please determine whether charging is needed according to the electricity consumption situation. Refer to the following charging methods:

In the case of using up 100% of the electricity, the general charging time will be 8 to 10 hours. Do not exceed 12 hours (as it will affect the battery life). It is not recommended to use up all the electricity each time. Generally, it is recommended to start charging when the electricity consumption is around 70%. The charging time is usually 6 to 8 hours.

If it is for short trips, when the daily electricity consumption is 10%, you can charge the battery once a week. When the daily electricity consumption is 20%, you can charge it once every three days. When the daily electricity consumption is 30%, you can charge it once every two days. When the daily electricity consumption is 40% or more, you can charge it once a day. Control the charging time, which is usually about 6 hours.

The charging of electric vehicle batteries indeed has a great impact on the batteries.

How to charge better:

1. A good battery can usually be charged and discharged about 350 to 500 times, generally lasting about two years, depending on the usage.

2. The battery should not be completely discharged. Because the volume of the substances produced after the battery discharge reaction is four times that before the reaction, the expansion will damage the battery structure. The normal discharge amount of the battery should be controlled within one-third of the maximum capacity. That is, charge it immediately after use, which is more reasonable.

3. The charging and discharging of the grouped batteries inside the battery are unbalanced. When the battery is discharging, the power-holding states of the batteries are different, and it is naturally impossible to fully charge them all at the same time during charging. After repeated charging and discharging processes, the imbalance of the battery pack will intensify. Therefore, overcharge the battery once every week or so, and charge it for an additional 3 to 4 hours to balance the groups. This is convenient for use and can extend the battery life.

4. Due to the above reasons, the performance of the battery will become worse and worse, which is a normal phenomenon. If you don't use it, the plates are prone to sulfation and the capacity will decline. The aging will be even more severe!

5. Good usage methods of electric vehicles can also extend the life of the battery.
   a. When accelerating, turn the speed control handle slowly to avoid directly accelerating to the fastest speed and reduce the high-current impact discharge of the storage battery.
   b. Try not to brake and start frequently during driving to avoid sudden changes in current.
   c. Avoid excessive temperatures during charging and use.

Charge frequently: When using lead-acid batteries, get into the habit of charging them immediately after use. Never wait until the electricity in the battery is completely used up before charging. If the battery will not be used for a long time, ensure to charge it 1 to 2 times a month.

Battery maintenance knowledge:

1. When starting the vehicle, do not apply power suddenly. Instead, accelerate slowly and use pedaling to assist.

2. When going uphill or against the wind, it is best to use pedaling to assist, which is beneficial to both your battery and motor.

3. When charging, it is best to fully charge the battery at one time and then perform a floating charge for 1 to 2 hours after the red light is on.

4. Do not drive with overloading or overweight. When the instrument shows that the battery power is insufficient during driving, use human power to ride.

5. Try to avoid sudden braking. Frequent sudden braking consumes battery capacity. The higher the designed vehicle speed, the greater the battery wear.

6. Prevent overcharging. Since overcharging will accelerate the corrosion of the grid, use the matching dedicated charger when charging. Due to different battery formulations and processes, do not mix chargers. Do not charge the battery upside down.

7. Since exposure to the sun will affect the service life of the storage battery, avoid exposing the storage battery to the sun.

8. Ensure that the installation position of the storage battery has good heat dissipation. Keep away from heat sources when charging.

9. Charge frequently: When using lead-acid batteries, get into the habit of charging them immediately after use. Never wait until the electricity in the battery is completely used up before charging.

10. Avoid storing the battery in a discharged state. The discharged state means that the battery is not charged in time after use, which is prone to sulfation. The lead sulfate crystals will attach to the plates, blocking the ion channels and resulting in insufficient charging and a decrease in battery capacity. The longer the battery is left in the discharged state, the more serious the battery damage will be. When the battery is not in use, it should be charged once a month, which can extend the battery life.

11. Conduct regular inspections. During the use process, if the continuous running mileage of the electric bicycle suddenly drops by more than ten kilometers within a short period of time, it is very likely that at least one battery in the battery pack has a short circuit phenomenon such as broken grids, plate softening, or detachment of active substances on the plates. At this time, you should promptly go to a professional battery repair institution for inspection, repair, or battery grouping.

12. Avoid high-current discharge. When starting, carrying passengers, or going uphill on an electric bicycle, it is best to use pedaling to assist and try to avoid instantaneous high-current discharge. High-current discharge is prone to cause lead sulfate crystallization, which will damage the physical properties of the battery plates.

13. Master the charging time. Generally, the storage battery is charged at night, and the average charging time is about 8 hours. If it is a shallow discharge (the running mileage after charging is very short), the battery will be fully charged quickly, and continuing to charge will result in overcharging, causing the battery to lose water, heat up, and reduce the battery life. Therefore, it is best to charge the storage battery once when the discharge depth is 60% to 70%. In actual use, it can be converted into riding mileage, and necessary charging should be carried out according to the actual situation to avoid harmful charging.

14. Prevent high-temperature exposure. Electric vehicles are strictly prohibited from being exposed to the sun. An environment with too high a temperature will increase the internal pressure of the storage battery, forcing the pressure-limiting valve of the battery to open automatically. The direct consequence is an increase in the water loss of the battery, and excessive water loss of the battery will inevitably lead to a decrease in battery activity, accelerate plate softening, and cause fatal damages such as heating of the battery case, bulging of the case, and deformation.

15. After buying a vehicle (or replacing the battery), the battery should have about 80% of its electricity. It should be charged as soon as you get home. The appropriate charging time is to continue charging for 4 hours after the charger light changes. Do this three times.

16. Thereafter, charge the battery every day (after riding 10 kilometers for 36V batteries and 15 kilometers for 48V batteries), but do not charge it for too long. It is advisable to charge it for one hour after the charger light changes. When charging, it is better to undercharge a little rather than overcharge. Otherwise, the battery will bulge and swell due to water loss, causing irreparable damage to the battery.

17. Do not let water enter the battery box to prevent the batteries inside the casing from short-circuiting.

18. Once a month, completely discharge the whole battery group (ride until the "undervoltage" light is on), and then charge it continuously for 12 hours.

19. If possible, swap the individual cells in the whole battery group. For batteries that have passed the warranty period (especially in summer), add 3 to 4 milliliters of deionized water (Wahaha pure water is also acceptable) to each cell every three or four months.

20. Once you find that the charger does not turn green or turns green immediately after starting to charge, you must check whether there is a problem with the charger or water loss.

21. Keep the discharge and charging ports of the whole battery group clean at all times to prevent copper rust from appearing on the contact points, which may cause poor contact and overheating and damage.

22. If there is a pedal, try to start with pedaling. Do not carry too heavy a load. Accelerate gently. Do not start the vehicle by applying power immediately after sitting on it.

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