如今電動車已經成為大家上下班的重要工具，而且幾年之后就要更換。因此遺留了不少電動車充電器。那這(zhe)些電(dian)(dian)(dian)動車充(chong)電(dian)(dian)(dian)器能(neng)否(fou)混用?如果(guo)有(you)電(dian)(dian)(dian)動車標稱電(dian)(dian)(dian)壓(ya)為48V的電(dian)(dian)(dian)池組(zu)所(suo)配的充(chong)電(dian)(dian)(dian)器，這(zhe)能(neng)否(fou)對標稱電(dian)(dian)(dian)壓(ya)為60V的電(dian)(dian)(dian)池組(zu)充(chong)電(dian)(dian)(dian)?這(zhe)是要分情況討論的：

　　1、如果標稱電(dian)(dian)(dian)壓(ya)為60V的鉛酸蓄(xu)電(dian)(dian)(dian)池組完全放(fang)電(dian)(dian)(dian)、且手頭一(yi)時找不到配套的充(chong)(chong)(chong)電(dian)(dian)(dian)器，只有48V的鉛酸蓄(xu)電(dian)(dian)(dian)池充(chong)(chong)(chong)電(dian)(dian)(dian)器，在輸出(chu)插頭和60V電(dian)(dian)(dian)池組充(chong)(chong)(chong)電(dian)(dian)(dian)孔插座極性一(yi)致的條(tiao)件下(xia)，是可以用來對60V電(dian)(dian)(dian)池組充(chong)(chong)(chong)電(dian)(dian)(dian)的。

　　因為60V電(dian)(dian)池組放(fang)電(dian)(dian)完畢(bi)后，電(dian)(dian)壓為10.5x5=52.5V，而48V充電(dian)(dian)器(qi)的最高(gao)輸(shu)出電(dian)(dian)壓為14.4x4V，要比52.5V高(gao)。因此可以少量補充一些電(dian)(dian)的。待電(dian)(dian)池組電(dian)(dian)壓上升到(dao)14.4x4V時，充電(dian)(dian)結束。

　　有人(ren)說了(le)，這(zhe)(zhe)還沒有充滿嘛!有什么(me)用?這(zhe)(zhe)就說錯(cuo)了(le)：對于鉛酸蓄電(dian)(dian)池而言，放光電(dian)(dian)之后如(ru)果不及(ji)時充電(dian)(dian)，正、負極板(ban)上的(de)(de)硫酸鉛就開始結晶——這(zhe)(zhe)就是鉛酸蓄電(dian)(dian)池的(de)(de)癌癥病灶!稱為(wei)硫化(hua)。隨著硫化(hua)的(de)(de)不斷發展，鉛酸蓄電(dian)(dian)池的(de)(de)容量不斷下降(jiang)，最(zui)終(zhong)死亡——報廢了(le)。能在(zai)第一時間阻擊(ji)癌癥，為(wei)什么(me)不干?

　　2、如(ru)果(guo)60V電(dian)(dian)池組的(de)兩(liang)端電(dian)(dian)壓(ya)，要大于(yu)(yu)等(deng)于(yu)(yu)48V充(chong)電(dian)(dian)器(qi)最高(gao)輸出(chu)電(dian)(dian)壓(ya)，用48V充(chong)電(dian)(dian)器(qi)，是不能對60V電(dian)(dian)池組充(chong)電(dian)(dian)的(de)。因(yin)為充(chong)電(dian)(dian)是需要電(dian)(dian)位差的(de)，電(dian)(dian)壓(ya)高(gao)的(de)向電(dian)(dian)壓(ya)低的(de)才能充(chong)電(dian)(dian)的(de)。不過(guo)你也不用擔心，電(dian)(dian)池電(dian)(dian)壓(ya)高(gao)于(yu)(yu)充(chong)電(dian)(dian)器(qi)電(dian)(dian)壓(ya)時，電(dian)(dian)能會倒灌——充(chong)電(dian)(dian)器(qi)電(dian)(dian)路中(zhong)，都(dou)設有防反接和倒充(chong)的(de)二極管。

　　3、如(ru)果你有(you)動手能力的(de)(de)話，可(ke)以拆開48V充(chong)電器(qi)，找到調(diao)整輸出電壓的(de)(de)元件(如(ru)384x類(lei)充(chong)電器(qi)接光耦(ou)的(de)(de)那個431)，調(diao)節431上的(de)(de)分壓電阻(zu)阻(zu)值，就(jiu)可(ke)以使充(chong)電器(qi)輸出電壓上升或(huo)下(xia)降(jiang)。

　　可以調節它，使輸出電壓(ya)為(wei)(wei)14Vx5左右，即(ji)可應急使用。不過需要(yao)注(zhu)意，充電器次(ci)級濾(lv)(lv)波電容的耐壓(ya)值(48V充電器次(ci)級濾(lv)(lv)波電容的耐壓(ya)值多(duo)為(wei)(wei)63V)是(shi)否能承受(shou)了(le)。最好更換(huan)為(wei)(wei)耐壓(ya)100V的。

　　另外還得注(zhu)意(yi)場效應(ying)管的(de)散(san)熱(re)問題和最(zui)大功(gong)耗問題(48V充電(dian)(dian)器(qi)多(duo)用(yong)8N60及(ji)(ji)以下(xia)的(de)，60V充電(dian)(dian)器(qi)多(duo)用(yong)12N60及(ji)(ji)以上的(de))。