Common sense of the use of new energy equipment - the use and maintenance of power battery system

Common sense of the use of new energy equipment - the use and maintenance of power battery system

Problem 1: The use and storage temperature of the power battery

1. Battery working environment temperature range: -30°C-50°C

2. Ambient temperature range of battery storage: -40 °C-55 °C

3. Battery charging ambient temperature range: 0-55°C

4. Optimal charging ambient temperature range: 25°C——45 °C

Question 2: SOC and device charging related matters.

1. Explanation of terms: SOC, the full name is State-of-Charge, the state of charge of the battery, also known as the remaining power, represents the ratio of the remaining dischargeable power of the battery after being used for a period of time or after being shelved for a long time and the power of the fully charged state.

When the SOC value is 50%-100%, it is best to get out of the car, and when it is lower than 30%, it is not recommended to go out of the car, and the power should be replenished to 50%-100% rear

Vehicles are available.

2. The normal operation of the vehicle should be fully charged once a day as much as possible.

3. Chargers that meet local national standards must be used.

When charging, the "automatic charging" function should be used, and it is strictly forbidden to use the "manual charging" function, and it is strictly forbidden to pull out the gun with load.

4. In the hot weather in summer, the number of power replenishment during the day shall not exceed 2 times, and the time shall not exceed 30 minutes each time; If the charging time exceeds 30 minutes, only one charging time is allowed. In order to avoid the high temperature of the battery affecting the normal operation.

5. Observe the vehicle dashboard before use to confirm that the battery system status is normal and there is no abnormal alarm information. When the SOC value is less than 30%, the power is low and should be charged in time. When the battery is too low, the device will trigger the battery protection function and will not be able to start (on high power). At this time, the equipment needs to be de-braked, dragged or forced to start by a mountain push professional using a program.

Problem 3: Requirements for the use of vehicles that have not been used for a long time

Answer: 1. The best SOC range for battery storage: 40%-80%.

2. The storage environment of the battery system requires ventilation, dryness, direct sunlight, rain, and away from heat sources.

3. The vehicle must do "battery maintenance" every three months to prevent battery damage.

4. Before the first use of the vehicle, it is necessary to do at least one "battery maintenance" to activate the battery system to restore the performance of the battery to the best state.

Question 4: What is the operation method of "battery maintenance"?

Answer: Maintenance site requirements: spacious, flat and safe, with charging equipment.

Maintenance operation process:

1. Adjust the battery level (SOC) in the range of 25%-40%.

2. The vehicle stops steadily, turns off the power (the key is screwed to the OFF gear), and then the power is started (the key is screwed to the ON gear), and the on-board electrical equipment is turned off.

3. Keep the vehicle energized (keep the key in ON file) and stand for 12-15 hours, during which there is no need for manual duty.

4. After standing, a full charge is required.

During the third step of the process, no vehicles or any electrical equipment are allowed.

If the operating time is tight, the standing time requirement cannot be met. The maintenance operation can be divided into 2-3 executions and completed within one month, and it is necessary to ensure that the cumulative sitting time meets the requirements.

After the maintenance is completed, if there are more than two consecutive prompts that the battery needs to be maintained within 1 month, you need to contact the manufacturer's service station for help.

Question 5: What are the daily inspections of the battery compartment part?

1. Check whether there is collision deformation and damage on the outside of the battery compartment, and if so, open the battery compartment to check whether the battery pack is in good condition.

2. Check whether there is any foreign matter blocking in the ventilated shutters outside the vehicle. If there is a foreign object, clean it up in time.

3. Check whether there are stains, water stains, unknown liquids, etc. If so, wipe it clean with a dry cloth in time.

Question 6: What are the requirements for regular maintenance of the battery system?

1. Before the arrival of summer every year, the water-cooled unit needs to be inspected at least once, and the specific items are as follows:

● Check whether the liquid level of the expansion tank is normal (it should be kept above 2/3 of the liquid level), if it is insufficient, please replenish the liquid, and then turn on the power to check whether the water circulation is normal.

● Check whether there is any garbage blockage at the entrance of the air duct of the unit, clean up the foreign objects in time if they are found, and wipe the filter with a clean rag.

For models equipped with water-cooled units, if the average temperature of the battery exceeds 50°C during high-temperature operation in summer, it is an abnormal situation, please check the water-cooled unit as required. If the fault still cannot be solved, please contact after-sales.

2. In order to ensure the best performance and safety of the battery, the battery system needs to be used

At least once a year, the specific items are as follows:

● Whether the high and low voltage wiring harness and connector of the battery system are scratched, damaged or loose.

● Whether there is sludge, cracks, deformation, odor and bulging in the battery box or high-pressure box.

● Whether the shape of the air pressure balance valve or explosion-proof valve of the battery box is damaged.

● Whether the connection between the battery box, the high-voltage box and the frame is firm.