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为什么长时间充电不会损伤手机电池? - 站长搜索
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为什么长时间充电不会损伤手机电池?

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2014-02-05 14:34:28 转载来源: 网络整理/侵权必删

AS网站目录(www.adminso.com):为什么长时间充电不会损伤手机电池? 很多人可能都听说过这样的言论:手机不能长时间充电,充电时间过长电池会爆炸或者缩短电池寿命等。实际上,这早就是一种过时的言论了,因为现在手机所使用的锂电池拥有多重保护机制,可以防止电池过度充电

AS网站目录(www.adminso.com):为什么长时间充电不会损伤手机电池

很多人可能都听说过这样的言论:手机不能长时间充电,充电时间过长电池会爆炸或者缩短电池寿命等。实际上,这早就是一种过时的言论了,因为现在手机所使用的锂电池拥有多重保护机制,可以防止电池过度充电。

下面我们就为大家解释一下这些保护机制:

第一层是充电器的IC电路。手机充电时,IC电路能自行判断是否充满,当检测到电量充满后它将自动切断电源输入。之后不管再充多少时间的电,充电器都不再向手机供电,这样就不会造成过充问题了,自然也就不会有爆炸危险。

手机电池充电电压最高可到4.2V,误差不超过1%上下,而充电器中有一个基准电压为4.2V,当电池充到这个电压时,IC电路将会切断。

第二层是手机上的电源管理芯片。它的工作主要是负责识别CPU供电幅值,产生相应的短矩波,推动后级电路进行功率输出。电源管理芯片在电子设备系统中担负起对电能的变换、分配、检测及其他电能管理的职责。

他就像手机上的电能指挥官。如果在充电时使用手机,电源管理芯片可以控制电流,一部分用于电池充电,一部分供给手机使用。只要不是山寨手机,都能很好的降低微少交流杂波的干扰。

第三层是电池保护板。当上述的双重保险都没法保护电池时,保护板就派上了用场。过充、过放、过流、短路?统统交给保护板解决。

以下部分内容摘自搜狐IT,此外还有诸如PTC等第四第五层的保护,这里就不详细解释了。总之,只要你的手机是正规厂家生产的,长时间充电基本是不会有危险,由于重重保护机制,发生危险的可能性极低。

这下大家可以放心了吧,不用天天惦记着有没有及时拔掉充电器了,小编这样的强迫症患者终于可以解放了。

标签: 为什么 长时间 充电 不会 损伤 手机电池


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