Introduction to daily maintenance and upkeep of power lithium batteries

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Introduction to daily maintenance and upkeep of power lithium batteries
Source: Power Lithium Battery | Author: Youchuang Weiye | Release Date: February 23, 2021 | 1093 views | Share to:
For users who are not familiar with power lithium batteries, they may not pay much attention to their daily use, especially in the current era of widespread and rapid development of electric vehicles. Learning the methods of daily maintenance and upkeep of power lithium batteries can effectively extend their service life and reduce economic losses. Below are some knowledge about daily maintenance and upkeep of power lithium batteries, hoping to be helpful to everyone during use.
1. Inspect the screws of the positive and negative terminal blocks to determine if there is any looseness;
Wear insulated gloves and gently shake the insulated rubber sleeve of the power line. When checking the high-voltage parts such as the positive and negative screws of the battery, please wear insulated gloves first to prevent electric shock, and do not apply too much force.
2. Check for any fault alarms
Check the fault codes on the car display screen, promptly handle any fault codes, and do not allow the vehicle to work with diseases.
3. Check if the total voltage is normal
If the total voltage is too low, a charger should be used to charge the entire vehicle.
4. Battery pack information troubleshooting
On the car display screen, enter the battery tube and check the battery voltage, temperature, current, and SOC information on the management interface to see if they are normal and record them.

5. Inspect the positive and negative terminal screws to determine if there is any looseness
Wear insulated gloves, gently shake the power line insulation sleeve with your hand, and when checking the high-voltage parts of the battery, such as the positive and negative pole screws, please wear insulated gloves first to prevent electric shock. At the same time, do not apply too much force.
6. Is there any leakage in the battery
Use the positive pole of a multimeter to connect to the positive pole of the battery and the negative pole to ground the entire vehicle. Check the voltage, which should generally be less than 5V. Pay attention to the selection of the voltmeter range and try to choose a larger range. When in contact with the positive and negative poles of the battery, be careful not to directly contact the body with the battery.
7. Is there a large current causing deformation in the positive and negative power lines
Open the battery compartment cover and observe. Do not use your hands to forcefully pull the power cord.
8. Is the battery box fan working properly
When the temperature of the box exceeds the set upper limit (45 ℃), place your hand on the fan mouth to feel if there is any wind blowing out. Do not put your fingers into the ventilation hole to test whether the fan is rotating.
9. Check the tightness of the screws on the battery box fixing bracket
Wear insulated gloves, shake the fixing screws to see if they are loose. Each screw has a gasket. If it is missing, please install it to prevent water from entering the large hole;
10. Check if the management system is functioning properly
Check if the voltage detection of the management system is accurate (check if the voltage value on the display screen is consistent with the actual measured voltage value), check if the current measured with a clamp meter is consistent, check for any faults, and check if communication is normal. When measuring voltage, the head of the acquisition line can be directly measured, which means that the current cannot be measured during dynamic vehicle conditions (danger).
11. Check if the wiring harness is intact
Visually inspect the power line communication line for any detachment, damage, or aging. Do not pull the wiring harness forcefully to prevent it from breaking. When inspecting the power line, wear insulated gloves.
12. Check if the relay is functioning properly
Press the relay control switch, there will be a normal "beep" sound when opening and closing. Do not press the relay control switch frequently to avoid burning out the relay.
13. Battery pack information troubleshooting
Enter the battery management interface on the car display screen to check if the battery voltage, temperature, and current information are normal. If any battery faults such as voltage, temperature, and current are found, they must be dealt with in a timely manner and the vehicle must not be allowed to work with faults.

14. Check if the high-pressure and waterproof markings are intact
Open the battery compartment cover and see if there are high-voltage and waterproof labels on the front of the battery box. If there are no records to be made, they should be added in a timely manner.
15. Check if the auxiliary power generation is normal
Enter the management interface to enable auxiliary power generation and check if there is current charging the battery pack. Non professionals are not allowed to enter the operation, nor are they allowed to charge the battery pack without authorization.
16. Check if the cruise control and feedback are normal
When following the car at different speeds, it is necessary to confirm whether there is cruise control, feedback current, or if it is too low or not, and promptly handle it.

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