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1、了解清楚(chu)手(shou)機充電器的類型。

    手機充電器一般都兼(jian)備兩(liang)種充(chong)電(dian)(dian)措施，一種是(shi)帶機(ji)充(chong)電(dian)(dian)（充(chong)電(dian)(dian)器(qi)通過電(dian)(dian)連接器(qi)與(yu)(yu)手機(ji)配合給電(dian)(dian)池(chi)(chi)(chi)充(chong)電(dian)(dian)）；另一種是(shi)通過充(chong)電(dian)(dian)座給電(dian)(dian)池(chi)(chi)(chi)充(chong)電(dian)(dian)。選購前，應清楚自(zi)己(ji)所用電(dian)(dian)池(chi)(chi)(chi)的(de)類型、容量、標稱電(dian)(dian)壓，以便選購與(yu)(yu)之適配的(de)手機(ji)充(chong)電(dian)(dian)器(qi)。

2、參考手機充(chong)電(dian)器(qi)的電(dian)壓和電(dian)流

　　目(mu)前手機(ji)(ji)使(shi)用的電(dian)(dian)(dian)(dian)池(chi)幾乎(hu)都是只有(you)一(yi)個(ge)單體電(dian)(dian)(dian)(dian)芯(xin)(xin)，標稱電(dian)(dian)(dian)(dian)壓(ya)為(wei)(wei)3.6V，額定容量(liang)(liang)為(wei)(wei)500mAh～1000mAh的鋰(li)(li)離子電(dian)(dian)(dian)(dian)池(chi)。鋰(li)(li)離子電(dian)(dian)(dian)(dian)芯(xin)(xin)對充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流和(he)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)的要求非常(chang)高(gao)；充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流過大(da)(da)或充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)過高(gao)，會引(yin)起電(dian)(dian)(dian)(dian)芯(xin)(xin)內(nei)(nei)部化(hua)學反應巨(ju)變，使(shi)得內(nei)(nei)部溫度升(sheng)高(gao)，導致電(dian)(dian)(dian)(dian)極、隔(ge)膜材(cai)料(liao)損壞或電(dian)(dian)(dian)(dian)芯(xin)(xin)膨脹(zhang)爆炸。雖然(ran)，一(yi)般(ban)手機(ji)(ji)電(dian)(dian)(dian)(dian)池(chi)內(nei)(nei)部裝有(you)具有(you)過充(chong)(chong)(chong)、過放、過流保(bao)護功(gong)能的保(bao)護器(qi)。有(you)時候(hou)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)連接器(qi)的質量(liang)(liang)不(bu)佳也(ye)會引(yin)起安全(quan)問題晴(qing)達(da)連接器(qi)才好。但為(wei)(wei)了安全(quan)、為(wei)(wei)了達(da)到較好的充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)效果(guo)，應選購最大(da)(da)輸(shu)出(chu)電(dian)(dian)(dian)(dian)壓(ya)為(wei)(wei)4.2V～4.5V，最大(da)(da)輸(shu)出(chu)電(dian)(dian)(dian)(dian)流為(wei)(wei)600mA～700mA的手機(ji)(ji)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)。

3、看手機充電器是否有認證標志