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

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3.7v 3000mah 18650 battery

release time:2024-03-20 Hits:     Popular:AG11 battery

  Detailed explanation of 3.7v 3000mah 18650 battery protection circuit, principle of 3.7v 3000mah 18650 battery protection board

  Detailed explanation of 3.7v 3000mah 18650 battery protection circuit and principle of 3.7v 3000mah 18650 battery protection board. The principle of 3.7v 3000mah 18650 battery protection board is very simple. The reason why 3.7v 3000mah 18650 battery (rechargeable type) needs protection is determined by its own characteristics. Due to the material of the 3.7v 3000mah 18650 battery itself, it cannot be overcharged, overdischarged, overcurrent, short-circuited or charged and discharged at ultra-high temperatures.

  Detailed explanation of 3.7v 3000mah 18650 battery protection circuit

  Due to the chemical characteristics of lithium batteries, during normal use, chemical positive reactions in which electrical energy and chemical energy are converted into each other are carried out internally. However, under certain conditions, such as overcharging, overdischarging and overcurrent will cause internal damage to the battery. A chemical side reaction occurs. When the side reaction intensifies, it will seriously affect the performance and service life of the battery, and may produce a large amount of gas, causing the internal pressure of the battery to rapidly increase and then explode, causing safety issues.

  Therefore, all lithium batteries require a protection circuit to effectively monitor the charging and discharging status of the battery, and to shut down the charging and discharging circuit under certain conditions to prevent damage to the battery.

  In order to ensure the safety of use, lithium batteries must have corresponding battery management circuits in their applications to prevent overcharge, overdischarge and overcurrent of the battery. The ultra-small package and few external device requirements of 3.7v 3000mah 18650 battery protection IC make it widely used in the design of single-cell 3.7v 3000mah 18650 battery protection circuits.

  At present, special 3.7v 3000mah 18650 battery protection board testers have appeared on the market, but the price is generally high, and the IC must be soldered to the circuit board before testing.

  In actual applications, the main parameters of 3.7v 3000mah 18650 battery protection IC that customers pay most attention to are: overcharge, over-discharge and over-current protection voltage, static operating current and power-off current, over-charge, over-discharge and over-current protection delay , and the output high and low levels of the OD and OC pins.

  3.7v 3000mah 18650 battery protection board principle

  3.7v 3000mah 18650 battery protection board balancing principle Commonly used balancing charging technologies include constant shunt resistance balancing charging, on-off shunt resistor balancing charging, average battery voltage balancing charging, switched capacitor balancing charging, buck converter balancing charging, inductor balancing charging, etc.

  The 3.7v 3000mah 18650 battery protection board also has the function of protecting the battery and preventing battery overcharging. When the external power supply continues to charge the battery rapidly, the 3.7v 3000mah 18650 battery protection board will have a protective effect. When the internal power of the 3.7v 3000mah 18650 battery reaches saturation, the internal circuit of the 3.7v 3000mah 18650 battery protection board will automatically cut off the external fast charging power supply. This prevents external power from entering the battery. This is also the principle of the 3.7v 3000mah 18650 battery protection board to protect the battery from overcharging.


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