筆記本電腦的電源適配器與手機電源適配器不一樣，基本每個品牌的輸出電壓和輸出電流都不一樣，例如IBM的(de)(de)輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電壓是16V，戴(dai)爾的(de)(de)輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電壓是20V，惠普的(de)(de)輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電壓是19V等(deng)等(deng)，同(tong)一品牌不同(tong)型號(hao)的(de)(de)輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電流(liu)(liu)也有不同(tong)，所(suo)以(yi)大家在找(zhao)筆記本電腦的(de)(de)替代電源(yuan)適配(pei)器時，一定要仔(zi)細查看電源(yuan)適配(pei)器的(de)(de)輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電壓和輸(shu)(shu)(shu)(shu)出(chu)(chu)(chu)電流(liu)(liu)。

如果(guo)實在找不(bu)到同樣大小的輸出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)(pei)(pei)器時，那(nei)就選用同電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)(pei)(pei)器，電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)選用原則跟手機電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)(pei)(pei)器一樣，大標(biao)稱電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)(pei)(pei)器替代小標(biao)稱電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)(pei)(pei)器。

選(xuan)用(yong)(yong)原則(ze)都是在電(dian)源適配器(qi)接口適用(yong)(yong)的(de)(de)前提條件(jian)下才(cai)成立的(de)(de)，如果接口不對應，那看都不用(yong)(yong)看了(le)就(jiu)(jiu)放(fang)棄吧！就(jiu)(jiu)像安卓的(de)(de)手機充電(dian)器(qi)不能(neng)給(gei)iPhone充電一樣。

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