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The correct usage method of lithium batteries for electric vehicles is as follows:

1. The battery does not need to be 'activated'

Lithium batteries do not require the first three charges to exceed 12 hours, as they have no memory.

2. Battery charging

Use the charger specified by the manufacturer to charge, and pay attention to whether the charger model matches the battery model when charging.

3. Avoid high temperature charging

Do not charge lithium batteries in environments with temperatures exceeding 40 ° C, as high temperatures can cause battery capacity degradation.

4. Timely charging

Try to implement on-demand charging for lithium batteries to avoid undervoltage before charging, which can greatly improve battery life. 5. Storage

When the battery is not used for a long time, the connection between the battery and the entire vehicle should be disconnected, and the battery should be recharged at intervals to avoid self discharge of the battery or over discharge of the battery due to power consumption of the protection board.

Lithium batteries are afraid of overcharging and even more afraid of overdischarging. But lithium batteries have no memory effect and can be charged as needed. Do not charge the battery only when it is completely depleted, as this can lead to excessive discharge and damage to the battery; Do not discharge with high current. In areas with steep slopes, it is best to use foot pedals to assist and avoid excessive battery current, which may affect battery life. Similarly, it is advisable to avoid exceeding the load specified in the instruction manual. Chargers usually have full charge protection and generally do not cause overcharging. However, at night, the power grid load is very light and the voltage rises very high, which can easily exceed the charger's set full charge self stop voltage and continue charging the battery, which can easily cause overcharging. At night, the charger should be unplugged.

Hello! The correct usage method of lithium batteries for electric vehicles is as follows:

1. The battery does not need to be 'activated'

The lithium battery used by our company does not require the first three charges to exceed 12 hours.

2. Battery charging

Use the charger specified by the manufacturer to charge, and pay attention to whether the charger model matches the battery model when charging.

3. Avoid high temperature charging

Do not charge lithium batteries in environments with temperatures exceeding 40 ° C, as high temperatures can cause battery capacity degradation.

4. Timely charging

Try to implement on-demand charging for lithium batteries to avoid undervoltage before charging, which can greatly improve battery life.

5. Storage

When the battery is not used for a long time, the connection between the battery and the entire vehicle should be disconnected, and the battery should be recharged at intervals to avoid self discharge of the battery or over discharge of the battery due to power consumption of the protection board.

If you have any other questions, feel free to ask!

Recently, due to a sudden drop in weather temperature and widespread rain and snow, lithium battery electric vehicles may experience issues during use, such as inaccurate battery level indication, large single cell pressure difference alarm, inability to charge, short driving range, acceleration power failure, and gear shifting. Don't be afraid when these phenomena occur accidentally. Your car may not have a real quality problem, but is only affected by low temperatures. If the fault persists for a long time, you can go to the manufacturer's designated service station for inspection. To remind lithium battery users:

1. Please try not to charge in inclement weather such as rain and snow, and cover the tram charging ports. Although these charging ports have been treated with waterproofing, prolonged exposure to humid environments can cause rusting and oxidation of the internal metal, affecting charging efficiency and safety. After charging is completed, unplug the charging gun (plug) in a timely manner to prevent the charging machine and management system from being in standby mode for a long time, which may affect the service life and cause other performance hazards. When the tram is charging or there is a power outage during the process, and the charger has no current output, please unplug the charging gun in a timely manner to prevent the battery system from being in an open state for a long time, which consumes the power of the on-board lead-acid battery and causes the lead-acid battery to feed.

2. Try not to charge on cooler mornings because the internal temperature of the battery is relatively low. Even for battery packs with heating films, the temperature inside the battery case (on the surface of the battery cells) will only be heated to the charging temperature allowed by the management system in the short term. At this time, the temperature of the battery cells is still in a relatively low state, and the charging efficiency is not high, which will also affect the battery life. For this situation, it is recommended to use the tram for a period of time before charging, as discharging lithium batteries can generate heat, causing the temperature of the battery cells to rise. Normal charging can be carried out, or the tram can be stopped indoors at a higher temperature (greater than 15 ℃) for a period of time (preferably more than 5 hours), and then charged in a timely manner when the internal temperature of the battery rises. However, open flames or heating equipment should not be used for baking, as this may cause safety issues. When the tram is not in use, try to keep the tram's power level consistently on (SOC>70%),

Note: Small electric bicycle batteries can be removed and charged indoors, but it is recommended to charge them during the day when someone is present to avoid any other abnormal situations.

3. The icing on the bottom of the tram should be cleaned up in a timely manner. Although the exterior of the battery box is protected by paint, scratches, bumps, etc. are inevitable after use for a period of time. Icing can cause the battery box to rust, affecting its appearance and service life. At the same time, it can also keep the battery at a low temperature for a long time, affecting its performance and lifespan.

4. The actual usable capacity of lithium batteries in low-temperature environments is lower than that in normal temperature environments, about 80% of the capacity at room temperature. In some northern regions, it may be even lower, which will significantly affect the driving range of electric vehicles, resulting in a situation where the driving range is significantly less than before. But don't worry, the capacity affected by low temperatures can be restored. When the temperature is slightly higher, the lost capacity can be restored.

5. In northern regions with lower ambient temperatures, it is advisable to avoid accelerating electric vehicles using lithium batteries too quickly, especially when the battery level is below 70%. This is because the discharge platform of the lithium battery will decrease in colder environments, and rapid acceleration can cause a sharp drop in the voltage of the battery cells, reaching the lower limit voltage of the discharge protection set by the management system, leading to issues such as alarms, speed limits, and gear adjustments. When your tram runs and becomes weak and unable to power on, please check the cell voltage on the display screen in a timely manner. If the voltage of a single cell is close to 3.1V (lithium iron phosphate), it indicates that the battery is dead and needs to be charged in a timely manner, even if the SOC is still at a high level.

6. Inaccurate State of Charge (SOC). Due to storage, temperature, and other factors, electric vehicles may experience inaccurate SOC readings after one year of use. At this time, the actual battery level needs to be determined based on the individual voltage displayed on the screen. When the battery voltage approaches 3.1V (lithium iron phosphate), the battery is almost depleted and needs to be charged in a timely manner, even if the SOC may still display 30%, 40%, and other battery levels (which may be accompanied by alarms such as large voltage difference, low individual voltage, and electric vehicle gear adjustment). When the voltage of the battery cell is between 3.20-3.45V (lithium iron phosphate), it proves that the battery is still charged and can be used with confidence. As the current battery management systems all come with SOC automatic calibration function, even if SOC is not on time, there is no need to worry. It only needs to be fully charged a few times to automatically recover. For some old systems without automatic calibration function, it is necessary to go to the manufacturer's designated service station for system upgrade.

7. Trams should not be stored in areas with a large amount of water accumulation for a long time. Even though current batteries are waterproof, they are only waterproof for a short period of time. If they are in a state of water accumulation for a long time, the battery may still be exposed to water through sockets, etc. Lithium batteries, power management systems, and electrical components in the car are very afraid of water. Once water enters, it may cause short circuits and damage to the battery and system components, resulting in other safety hazards. So when the tram is submerged in water or used on waterlogged roads for a long time, please go to the service station designated by the manufacturer for maintenance in a timely manner.

8. When the tram or battery is not in use for a long time, try to keep the battery in a charged state (SOC>80%) to prevent over discharge due to long-term storage system power consumption.

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