2S 20A 18650 Lithium Battery Protection Board
Description:
The 2S 20A 18650 Lithium Battery Protection Board is a specialized circuit board designed to ensure the safe and efficient operation of lithium-ion battery packs comprised of two 18650 cells connected in series. Here's a detailed description:
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Series Configuration: This protection board is specifically engineered for 2-series lithium-ion battery packs, meaning it's intended to manage the voltage of two 18650 cells wired together in a series configuration.
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Overcharge Protection: The board incorporates overcharge protection functionality, monitoring the voltage of each cell during charging. When the voltage of any individual cell exceeds a predetermined safe threshold (typically around 4.2 volts), the protection circuitry activates, cutting off the charging current to prevent overcharging and potential damage to the cells.
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Over-discharge Protection: Similarly, the protection board guards against over-discharging of the battery cells. When the voltage of any cell drops below a certain level (usually around 2.5-3.0 volts), the protection mechanism triggers, disconnecting the battery from the load to prevent excessive discharge, which can lead to cell degradation or damage.
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Overcurrent Protection: The board is equipped with overcurrent protection capabilities. In the event of a sudden surge in current draw, such as a short circuit or excessive load, the protection circuitry activates, limiting the discharge current to a safe level and preventing damage to the battery pack and connected devices.
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Balance Charging: Some variants of the protection board may include balance charging functionality. This feature ensures that both cells in the battery pack are charged to the same voltage level, promoting optimal performance and longevity of the battery pack.
Overall, the 2S 20A 18650 Lithium Battery Protection Board is an essential component for assembling safe and reliable lithium-ion battery packs for various applications, including portable electronics, power banks, electric vehicles, and renewable energy systems.
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