18650 lithium ion battery 3.7v

　　How to maintain 18650 lithium ion battery 3.7v and what are the causes of damage?

　　In terms of maintenance of 18650 lithium ion battery 3.7v, for example, cracks in the sealing glue must be repaired in time. Always check whether the battery connection wires are firm, and all loose joints must be in good contact. In addition, the reasons for battery damage include cracks in the sealing glue, casing and cover, etc. The size of the pole and the chuck do not match, etc. The relevant content is introduced in detail below.

　　1. Maintenance methods of 18650 lithium ion battery 3.7v

　　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 battery is insufficient, the lights are dim, and the vehicle cannot start, charging outside the vehicle should be carried out in a timely manner.

　　3. Prevent the battery from overcharging or long-term power loss. Overcharging will cause the active material to fall off, and power loss 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 battery from deforming or bursting.

　　5. The 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 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 battery should be installed firmly on the car to reduce vibration.

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

　　9. Always remove dust, dirt and spilled electrolyte from the 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 battery to prevent the electrolyte from freezing.

　　2. What are the causes of car battery damage?

　　1. The size of the pole pile and the chuck do not match. When the installation is too loose, the poles can easily be burned due to excessive current at startup, small contact surface or poor contact; when the installation is too tight, violent prying during disassembly and assembly can easily damage the poles and cause the battery to be scrapped.

　　2. The fixation is unreliable, and the vehicle will vibrate violently while driving, causing the rubber seal, shell and cover to crack.

　　3. The charging current is too large, causing the active material on the plate to fall off prematurely, shortening the service life of the battery.

　　4. If the starting time is too long, the battery will discharge rapidly, causing the plates to bend and the active material to break.

　　5. If left or used for a long time without sufficient charging, the plates will be vulcanized.

　　6. The electrolyte level is lower than the electrode plate, causing the electrode plate to be exposed to the liquid surface and come into contact with air and oxidize. During driving, the electrolyte fluctuates up and down and comes into contact with the oxidized parts of the plates, causing the plates to be vulcanized.

　　7. The electrolyte contains impurities, mainly due to impure distilled water and the use of copper, iron and other metal containers when preparing the electrolyte. These impurities will form a "small circuit" in the battery, causing the battery to accelerate its self-discharge.

　　8. If the wiping and maintenance are not timely, the overflowing electrolyte will accumulate on the cover plate for a long time, causing the poles and clamps to corrode, producing oxides, and then forming a path on the cover plate, causing self-discharge.

　　9. If the new battery is not charged for the first time or directly charged with high current, its service life will be shortened. New 18650 lithium ion battery 3.7v can only be installed and used after the electrolyte has been filled and the initial charge must be carried out using a small current method.

　　10. Ignore the vent hole of the battery. If it is not connected on time, the gas generated during use cannot be discharged, and the battery will be damaged due to excessive internal pressure.

　　11. If the battery is left for a long time after adding distilled water without charging, it will cause the battery to self-discharge or damage the polarity of the battery.

　　12. The charge capacity of the battery does not match the engine, causing early damage to the plates.

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