一、用汽車usb給手機充電好嗎
開車出行時,導航、拍照、打電話等都會導致手機耗電快,有時許多車主會直接用車載usb接口(kou)給手機充電(dian),那么usb接口(kou)充電(dian)好嗎?
答案是否定(ding)的(de)(de)(de)(de)。大部分車(che)內的(de)(de)(de)(de)USB接(jie)口(kou)都是為了(le)音頻(pin)數據傳輸而設置的(de)(de)(de)(de),電(dian)(dian)(dian)流(liu)只有5V/0.5A,而大部分手機(ji)(ji)的(de)(de)(de)(de)輸入電(dian)(dian)(dian)流(liu)需(xu)求(qiu)為1A,一旦與(yu)車(che)內的(de)(de)(de)(de)USB接(jie)口(kou)連(lian)接(jie)的(de)(de)(de)(de)話,這(zhe)些(xie)接(jie)口(kou)僅能輸出0.5A的(de)(de)(de)(de)電(dian)(dian)(dian)流(liu),會大大延長充電(dian)(dian)(dian)時間,導致充電(dian)(dian)(dian)慢,長此以往你會發現,手機(ji)(ji)耗(hao)電(dian)(dian)(dian)越來越快,電(dian)(dian)(dian)池越來越不耐用(yong)(yong),甚至(zhi)電(dian)(dian)(dian)路板都損壞了(le),因此,不建議用(yong)(yong)汽車(che)usb接(jie)口(kou)給手機(ji)(ji)充電(dian)(dian)(dian),應急使用(yong)(yong)的(de)(de)(de)(de)話還好,長期使用(yong)(yong)是肯(ken)定(ding)會縮(suo)短手機(ji)(ji)使用(yong)(yong)壽命的(de)(de)(de)(de)。
除了影響手機外(wai),用汽車(che)usb給手機充電(dian)的缺點還(huan)(huan)有一(yi)個就是成本更高,據(ju)統計,手機在用USB端(duan)口充電(dian)的時候,會使每(mei)加侖汽油(you)(約(yue)3.8L)的駛里程降低約(yue)0.48公里,加大了油(you)耗(hao),充電(dian)成本還(huan)(huan)是相當高的。
二、車載usb充電慢怎么解決
用車(che)(che)載usb充電(dian)慢是必然的(de),因為它的(de)輸出電(dian)流較低(di),如果在用車(che)(che)載usb充電(dian)的(de)同時還(huan)開導(dao)航(hang),你會(hui)發現不(bu)僅充不(bu)進去電(dian),反而電(dian)量會(hui)降低(di),那么車(che)(che)載usb充電(dian)慢怎(zen)么辦呢?
1、接專門的usb充電口
很多車(che)型為了方(fang)(fang)(fang)便消費者(zhe),會(hui)專門在(zai)車(che)上(shang)設置一個為手(shou)機(ji)充電(dian)的地方(fang)(fang)(fang),一般在(zai)手(shou)扶箱下方(fang)(fang)(fang),或者(zhe)是后面排風(feng)出口的附近,并且上(shang)面還會(hui)顯示(shi)有電(dian)流標(biao)示(shi),這(zhe)種(zhong)usb口的輸(shu)出電(dian)路更大,能(neng)用于手(shou)機(ji)充電(dian)。
2、安裝車載充電器
用車載(zai)充電(dian)(dian)(dian)(dian)(dian)器(qi),從點(dian)煙(yan)器(qi)取電(dian)(dian)(dian)(dian)(dian),經過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)路把電(dian)(dian)(dian)(dian)(dian)流(liu)調(diao)制成適合手(shou)(shou)機充電(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)(dian)流(liu)后給(gei)手(shou)(shou)機使用。不(bu)過(guo)(guo)購(gou)買車載(zai)充電(dian)(dian)(dian)(dian)(dian)器(qi)時要注(zhu)意(yi),車載(zai)充電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)USB接(jie)口一般會設(she)置兩(liang)種不(bu)同的(de)(de)額定(ding)電(dian)(dian)(dian)(dian)(dian)流(liu),分(fen)別是(shi)2.1A和1A,在使用的(de)(de)過(guo)(guo)程當(dang)中,也要注(zhu)意(yi)的(de)(de)選擇的(de)(de)接(jie)口不(bu)能小于手(shou)(shou)機的(de)(de)最(zui)大額定(ding)輸入功(gong)率,不(bu)然(ran)也會導致充電(dian)(dian)(dian)(dian)(dian)慢的(de)(de)問(wen)題。
3、用充電寶
如果車上沒有專門的usb充(chong)電(dian)口,又懶得安裝車載充(chong)電(dian)器,就可(ke)以(yi)直接(jie)使用(yong)移動電(dian)源(yuan)給手機充(chong)電(dian),也十分方(fang)便。