How to maintain car batteries and prevent failures?

　　The electrolyte level of the car 3.7v 18650 lithium battery should always be maintained between max and min, and should be checked once a month to prevent the 3.7v 18650 lithium battery from overcharging or long-term power loss; to prevent failures, pay attention to frequently checking the status of the connection between the wiring harness and the terminal post, and keeping it clean, dry and The connection is reliable. Here is a detailed introduction to "How to maintain and prevent failures of car batteries."

　　1. How to maintain car batteries

　　1. The electrolyte level should always be maintained between max and min. Check it once a month. Depending on the drop in the level, add distilled water (pure water) appropriately and do not add acid.

　　2. When the voltage of the 3.7v 18650 lithium battery is insufficient, the lights are dim, and the car cannot start, it should be charged outside the vehicle in time.

　　3. Prevent the 3.7v 18650 lithium battery from overcharging or long-term loss of power. Overcharging will cause the active material to fall off, and loss of power will cause the plate to be vulcanized. Make sure that the voltage of the regulator is not too high or too low.

　　4. During use, you should always check whether the exhaust hole is clear to prevent the 3.7v 18650 lithium battery from deforming or bursting.

　　5. The 3.7v 18650 lithium battery should be kept away from heat sources and open flames, and ventilation should be maintained during charging and use to prevent burning and injury.

　　6. To prevent the 3.7v 18650 lithium battery from being discharged with high current for a long time, the start-up time of each use should not be greater than 5 seconds, and the time between two consecutive starts should be 10-15 seconds.

　　7. The 3.7v 18650 lithium battery should be installed firmly on the car to reduce vibration.

　　8. Always check whether the 3.7v 18650 lithium battery connection cable is firm and all loose joints must be in good contact to prevent sparks from causing the 3.7v 18650 lithium battery to explode. The oxides and sulfates produced by the 3.7v 18650 lithium battery clip must be scraped off and coated with Vaseline to prevent further corrosion.

　　9. Always remove dust, dirt and spilled electrolyte from the 3.7v 18650 lithium battery cover to keep it clean and dry to prevent self-discharge.

　　10. Cracks in the sealing tape must be repaired in time.

　　11. When driving in cold areas, avoid completely discharging the 3.7v 18650 lithium battery to prevent the electrolyte from freezing.

　　2. How to prevent car 3.7v 18650 lithium battery failures

　　1. Charge the deeply depleted 3.7v 18650 lithium battery with a small current outside the vehicle.

　　2. Test vehicle and 3.7v 18650 lithium battery-related equipment to solve leakage and charger problems.

　　3. Frequently check the status of the connection between the wiring harness and the terminal post to keep it clean, dry and securely connected.

　　4. Develop good car usage habits and avoid excessive use of electricity when the engine is not running.

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