18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

3.7v 3000mah 18650 battery

release time:2024-05-10 Hits:     Popular:AG11 battery

  What are the key points in testing 3.7v 3000mah 18650 battery and what are the taboos?

  When testing 3.7v 3000mah 18650 battery, pay attention to key points such as compatibility, flame retardancy, fault tolerance, explosion-proofness, and interference. There are many usage taboos that need to be noted, such as irregularly checking the electrolyte level, impure electrolyte, and careless addition of electrolyte. Ventilation and dredging of the liquid cap, etc., the following is a detailed introduction to the "key points of testing 3.7v 3000mah 18650 battery and usage taboos".

  1. Key points for detecting 3.7v 3000mah 18650 battery

  1. Compatibility

  The UPS battery online monitoring and management system has electromagnetic compatibility considerations in circuit design and structural design. The metal shell has a good shielding effect, and the system does not have any electromagnetic interference to the outside world.

  2. Flame retardancy

  The UPS battery online monitoring and management system uses flame-retardant components and failures caused by system short-circuit and overcurrent will not cause open flames.

  3. Fault tolerance

  Each detection channel uses a high-impedance input method, and the current of the detection loop is less than microampere level, which will not affect the battery. Using the design of low-power components, the power consumption of system operation is low, and the requirements for the user's power supply system are not high.

  4. Explosion-proof

  The UPS battery online monitoring and management system uses electronic relays, which can switch without channel sparks, without generating open flames to contact connecting equipment, and can also be used in petrochemical and other operations with high explosion-proof requirements.

  5. Interference

  The UPS battery online monitoring and management system uses power conversion technology, has a wide operating voltage range, and has strong overcurrent and overvoltage prevention capabilities. The system is also designed with an anti-surge circuit and can operate normally in high-frequency and strong magnetic field environments.

  6. Maintainability

  The UPS battery online monitoring and management system uses a modular design and is highly maintainable online. Online maintenance will not affect the normal operation of the user system.

  2. Taboos on the use of UPS uninterruptible power supply batteries

  1. Check the electrolyte level from time to time

  During the use of the battery, the electrolyte level decreases due to evaporation of electrolyte water and overflow of the solution. This easily exposes the plates to the air, resulting in reduced capacitance and vulcanization of the plates. Therefore, regular inspection is necessary. The liquid level should be 10-15 mm higher than the plate. If it is not enough, add distilled water if the electrolyte overflows. Electrolytes with the same specific gravity should be added.

  2. Not paying attention to keeping the battery surface clean and dry

  There is dirt on the plates, which can easily cause a short circuit between the plates. Allow the battery to discharge itself. Therefore, the dirt on its surface and the oxides on the plate must be regularly removed, and dirty water must be prevented from flowing into it.

  3. Failure to adjust the electrolyte proportion in time

  During the charging and discharging process of the battery, the electrolyte will become thicker or thinner. Therefore, when checking the specific gravity of the electrolyte, you can know the degree of storage of the battery. When the specific gravity is less than 1.18, it should be charged in time. To avoid a sharp drop in voltage and shorten the battery life. The proportion of electrolyte should also be adjusted in different seasons. Since the lowering of the electrolyte temperature will reduce the battery capacitance, part of the electrolyte should be sucked out in winter and electrolyte with a larger specific gravity should be added to increase the specific gravity; after spring, part of the electrolyte should be sucked out in time. Add an appropriate amount of distilled water to reduce the specific gravity.

  4. The electrolyte is impure

  If industrial sulfuric acid is used instead of chemical sulfuric acid. Adding tap water or river water to the battery instead of distilled water will cause self-discharge. Shorten battery life.

  5. Not paying attention to the ventilation of the filling port cap.

  If the vent hole is blocked, the gas generated during charging cannot escape. The battery may even explode on its own. Therefore, the vent must remain clear.

  6. Overcharging

  Charging will cause the battery to overheat, causing a large amount of water consumption and causing the positive electrode to expand and bend. The active material falls off, the plates are corroded early, the casing is deformed, cracked, and the sealant overflows, etc. Therefore, in order to avoid overcharging of the battery, the data of the regulator and pressure regulator must be checked frequently to keep it within the specified range.

  7. Use incorrect methods such as "can fire" to check the battery storage status

  If checked this way. It is easy to damage the battery.

  8. Starting the engine for too long and starting continuously

  When starting the engine, if the starting time exceeds 5 seconds, the starter may be easily burned out. If the engine is started multiple times in a row, it will not only consume a lot of power. And the plates are easily deformed. Therefore, each start should not exceed 5 seconds. If it fails to start at one time, it should be started again after an interval of 1-2 minutes. Continuous starts should generally not exceed 3 times.

  9. Failure to maintain batteries that have been out of service for a long time

  The battery is left out of service for a long time without maintenance. The plates are easily vulcanized, shortening the battery life. The correct approach is: when the tractor or agricultural transport vehicle is not working for a long time, remove the battery. After it is fully charged, store it indoors and recharge it every two months.

  10. Never pay attention to ammeter readings

  When the electrical equipment is not using electricity, if the battery is found to be discharged, the ammeter will point to the "one" value. The cause of the fault must be found and eliminated immediately, otherwise its service life will be shortened.


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