precautions
1. Avoid storing the battery in a low battery state: A low battery state refers to the situation where the battery is not charged in a timely manner after use, resulting in insufficient charging and a decrease in battery capacity. The longer the idle time in a low battery state, the more severe the battery damage. When the battery is idle, it should be charged once a month to extend its lifespan.
2. Regular inspections should be conducted during use. If the range of the electric bicycle suddenly drops by more than ten kilometers in a short period of time, it is likely that at least one battery in the battery pack has a short circuit phenomenon such as grid breakage, plate softening, or active material detachment. At this time, it is necessary to promptly go to a professional battery repair institution for inspection and repair.
3. Do not discharge high current electric bicycles. When starting, carrying people, or going uphill, try to use pedals to assist and avoid instantaneous high current discharge. High current discharge can easily lead to lead sulfate crystallization, thereby damaging the physical properties of battery plates.
4. Master the charging time. Generally, batteries are charged at night, with an average charging time of about 8 hours. If the discharge is shallow (with a short driving range after charging), the battery will quickly become fully charged, and continuing to charge will result in overcharging, causing the battery to heat up and reducing its lifespan. Therefore, it is better to charge the battery once when the discharge depth is 60% -70% (two grids below). 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.
5. Prevent high temperature exposure to sunlight. An environment with excessively high temperature can increase the internal pressure of the battery, forcing the battery pressure limiting valve to automatically open. The direct consequence is an increase in the battery's water loss, and excessive water loss of the battery will inevitably lead to a decrease in battery activity, accelerate plate softening, and cause fatal damage such as shell heating, bulging, and deformation during charging.
6. Charging in winter should be done indoors, and the battery should be warmed up for two hours before charging.
As the battery car battery is used for a long time, it gradually becomes unable to run far, which is normal, especially in cold weather. The battery usually needs to be fully charged once when 70-80% of the electricity is used. The so-called full charge means waiting for the light to change and then charging for about 2 hours. This can ensure that the battery float charge is in place and achieve a good mileage. Generally, there can be a deep discharge in about two months, which can be recharged with empty space to eliminate lead deposition and increase the battery capacity. The battery is afraid to be charged with empty space frequently or used without changing the light during charging. It needs to be fully charged once every 20 days for a long time. The master upstairs said that it is impossible for you to charge distilled water because electric vehicle batteries. It is a fully enclosed maintenance free battery that can be used for about 2 years under normal circumstances, but this depends on the mileage you need to run every day.
Pay attention to the issue
1、 Maintenance of electric vehicle batteries during use
a. When starting, getting on the bridge, climbing slopes, or driving against the wind, manual labor should be used to avoid sudden high current discharge as much as possible.
b. When accelerating, slowly rotate the speed control lever to avoid accelerating directly to the fast gear.
c. If road conditions permit, try to drive the electric vehicle at a higher speed.
d. Try to avoid frequent braking and starting, and use pedals to drive more when the road is congested.
e. The battery level display shows that the battery is dead, and after a period of time, you will find that there is a small amount of battery left
Voltage, also known as rebound voltage, should be avoided by users when riding.
2、 Maintenance of electric vehicle batteries in terms of charging
a. Charging at night takes an average of about 8 hours to avoid overcharging and undercharging.
b. When charging, do not immediately unplug the indicator light indicating full charge, and float charge for 2-3 hours.
c. Try to fully charge the battery at once. If it is necessary to ride during the charging process, it should be fully charged immediately after riding.
d. Frequent charging is beneficial for cycle life, but the chargers widely used in the market have defects such as high failure rate, poor reliability, and low accuracy. Therefore, sometimes frequent charging can actually affect the battery's lifespan. However, emptying and recharging the battery may cause some cells to over discharge, greatly reducing the charging capacity of the over discharged battery and causing insufficient charging faults. In addition, due to the heavy load time of the charger after discharging and recharging, it is easy to damage the charger. Therefore, it is reasonable to charge the battery once it has discharged 50-70% of its capacity, which is beneficial for the battery's lifespan.
3、 Attention should be paid to avoiding storing electric vehicle batteries in a depleted state during maintenance
Low battery state refers to the situation where the battery is not charged in a timely manner after use. Sulfation occurs in a depleted state, with lead sulfate crystals adhering to the electrode plates, blocking the ion channels and causing a decrease in battery capacity. The longer the battery is idle in a depleted state, the more severe the damage to the battery. Especially in summer, it is important to recharge in a timely manner. Electricity should be replenished every month after storage.
4、 Timely maintenance of electric vehicle batteries is also necessary
When the battery experiences the following situations, maintenance is required
⑴ Long term charging without changing green light
⑵ The battery heats up during charging
The battery capacity drops too quickly
5、 Regular inspection is required for the maintenance of electric vehicle batteries
During use, if the driving range of an electric vehicle suddenly drops by more than ten kilometers in a short period of time, it is likely that at least one battery in the battery pack has a short circuit phenomenon such as grid breakage, plate softening, or active material detachment from the plate. At this point, timely inspection, regeneration, and assembly should be carried out. This can relatively extend the lifespan of the battery pack and save expenses to a certain extent.
6、 Attention should also be paid to the maintenance of electric bicycle batteries: the battery should be installed firmly on the electric bicycle to prevent vibration damage to the battery during riding; Regularly clean the dust and dirt on the battery cover, pay attention to keeping the battery dry and clean, to prevent the battery from discharging on its own.
Extend lifespan
How can we extend the lifespan of electric vehicle batteries that need to be replaced after a year or so of use?
1. Firstly, it is not allowed to drive overloaded or overweight (such as riding with people or loading heavy objects). If the instrument panel shows low battery during driving, manual cycling is necessary because deep discharge causes significant damage to battery life.
2. Pay attention to the charging method. When charging a new battery for the first time, the time must be long to ensure that it is fully charged. For lead-acid batteries, regardless of the distance traveled, they should be charged immediately after use, and charged as needed. Do not wait until the battery is completely depleted before thinking about charging. If the car is not used for a long time, it is also necessary to ensure that it is recharged once a month. This can both protect the battery and extend its lifespan.
3. Try to avoid sudden braking as frequent sudden braking can affect braking flexibility and consume battery capacity; The speed should not be too fast, as the faster the speed, the greater the battery damage.
4. Do not use the motor to start the car directly when it is stationary. Try to start it with both foot pressure and assistance. When driving on bridges, uphill, or against the wind, it is necessary to use foot pedal assistance to avoid impact damage to the battery, which may affect the battery's driving range and service life.
Maintain knowledge
1. Check the outer shell, cover, and sealing of the electric vehicle battery to ensure that there are no cracks.
2. Check the installation of the battery, it needs to be secure. The connection between the wire and the pole tower iron needs to be firm
3. Brush the outside of the battery with hot water and dry it. Use a cleaning cloth or cotton yarn to remove dust and grease from the surface of the battery, wipe off the electrolyte on the battery cover, and keep the battery and connecting wires clean and dry
4. Check the pole for looseness. Remove oxides from pole and wire connectors. It is strictly prohibited for metal shavings and other debris to enter the battery.
Check the starting cable and replace it if it is damaged.
6. Do not hit the battery. This is because the lead plate in the battery is extremely low and fragile, and cannot be struck due to poor battery function, which may cause the shell to break and the plates to be damaged.
