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Function Introduction •
Power supply: Provides power for mobile phones, supporting various functions such as calling, texting, browsing the internet, and taking photos. It stores electrical energy through charging and releases it through discharging.
• Protection function: There are usually protective circuit boards and recoverable fuses (PTC and NTC) inside to prevent overcharging, overdischarging, and short circuiting of the battery, ensuring safe use and extending battery life.
Automatic emergency power reserve: In some special situations, such as when the phone's battery is about to run out, it can provide temporary power support for key functions of the phone.
Specification introduction • Battery type: The common type of mobile phone battery is lithium battery, which has the advantages of high energy density, small size, and light weight. Capacity: Usually measured in "mAh" units, such as 2000mAh, 4000mAh, etc. The larger the capacity, the more power theoretically can be provided for the phone, and the longer the battery life.
Voltage: The voltage of lithium batteries is generally 3.7V or 3.8V, and there may be differences in voltage among different types of batteries.
• Size and weight: Depending on the phone model and battery capacity, the dimensions of length, width, height, and weight are generally marked, such as 72.00mmx57.06mmx4.36mm, 80.2g.
• Cycle life: refers to the number of charge and discharge cycles that a battery undergoes from initial capacity to 60% of its nominal capacity, typically around 500-1000 times
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