3.7v 3000mah 18650 battery

　　Characteristics of 3.7v 3000mah 18650 battery and working principle of protection circuits

　　Since the characteristics of 3.7v 3000mah 18650 battery are different from other rechargeable lithium batteries, there is a circuit board inside with the characteristics of 3.7v 3000mah 18650 battery and the working principle of the protection circuit.

　　Lithium batteries are divided into primary batteries and secondary batteries. Currently, the reserve rechargeable batteries of mobile phones mainly use non-rechargeable primary lithium batteries due to their small consumption, while the main batteries of mobile phones use rechargeable secondary batteries due to their large power consumption, that is, Lithium Ion Battery.

　　Compared with nickel-cadmium and nickel-metal hydride batteries, lithium batteries have the following advantages:

　　1. The working voltage of 3.7v 3000mah 18650 battery is higher, and the working voltage of each lithium-ion battery is much higher than Ni-cd and Ni-h rechargeable batteries.

　　2. High volume density, the relative volume density is twice that of Ni-h rechargeable batteries or Ni-cd batteries.

　　3. It has strong charge retention ability (that is, small self-discharge), and its volume damage is not significant after long-term placement.

　　4. The service life of the circulation system can be more than 500 times that of all normal uses.

　　5. There is no memory effect, there is no need to drain the remaining power before charging, and it is easy to use.

　　Due to the chemical properties of lithium batteries, the internal organic chemistry of electromagnetic and mechanical energy conversion is reflected in all normal applications, but under conditions such as overcharge, overcharge, overdischarge and overcurrent, the organic chemistry of the rechargeable battery may be Adverse reactions will seriously endanger the characteristics and service life of the rechargeable battery, and may cause a large amount of vapor, causing the working pressure inside the rechargeable battery to explode rapidly. Therefore, all lithium batteries must have a protection circuit to reasonably detect the charging and discharging conditions, and follow a certain Some standards turn off the charge and discharge control circuit to avoid damage to the battery.

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