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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Lithium ion battery function

source:Industry News release time:2024-08-21 Hits:     Popular:AG11 battery

  

  1. Overcharge protection function:

  The overcharge protection function refers to prohibiting the charger from continuing charging when a certain voltage (hereinafter referred to as overcharge detection voltage) is reached. The MOS transistor that is about to control charging enters a short circuit state and stops charging.

  2. Overdischarge protection function:

  The over discharge protection function refers to stopping the discharge of the load when the battery voltage drops. The MOS transistor controlling the discharge is placed in a closed state, prohibiting its discharge. The modification process is exactly the opposite of overcharge detection.

  3. Overcurrent protection function:

  The overcurrent protection function is to stop discharging the load when high current is consumed. The purpose of this function is to protect the battery and MOSFET, ensuring the safety of the battery in working condition. After overcurrent protection, the battery will return to normal after disconnecting from the load and can be charged or discharged again.

  At present, the protection board market mainly includes:

  1. A-level market

  Note: The main manufacturers of protective ICs in the A-class market are Seiko, Ricoh, and Meizhimei; The main MOSFET manufacturers are Sanyo and AO;

  2. B-class market

  Note: The main manufacturers of protective ICs in the B-level market are Fujing, Xinde, and Zhongxing Microelectronics; The main MOSFET manufacturers include Sanhe Microelectronics, Huarui, Nanhai, and Fujing;


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