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(nei)這些電(dian)動(dong)(dong)車(che)充(chong)電(dian)器(qi)能否(fou)混用?如果有電(dian)動(dong)(dong)車(che)標(biao)稱電(dian)壓(ya)(ya)為(wei)48V的電(dian)池組(zu)所配的充(chong)電(dian)器(qi)，這能否(fou)對(dui)標(biao)稱電(dian)壓(ya)(ya)為(wei)60V的電(dian)池組(zu)充(chong)電(dian)?這是要分(fen)情況討論的：

　　1、如果標稱(cheng)電(dian)(dian)壓為60V的(de)鉛酸(suan)蓄電(dian)(dian)池組(zu)完(wan)全放電(dian)(dian)、且手(shou)頭一時找(zhao)不到配套的(de)充電(dian)(dian)器，只有48V的(de)鉛酸(suan)蓄電(dian)(dian)池充電(dian)(dian)器，在輸出插(cha)頭和60V電(dian)(dian)池組(zu)充電(dian)(dian)孔(kong)插(cha)座極性一致的(de)條件下，是可以(yi)用來對(dui)60V電(dian)(dian)池組(zu)充電(dian)(dian)的(de)。

　　因為60V電(dian)(dian)池組放電(dian)(dian)完(wan)畢后(hou)，電(dian)(dian)壓為10.5x5=52.5V，而(er)48V充(chong)電(dian)(dian)器(qi)的最高輸出電(dian)(dian)壓為14.4x4V，要(yao)比(bi)52.5V高。因此可以少(shao)量補充(chong)一些電(dian)(dian)的。待電(dian)(dian)池組電(dian)(dian)壓上升到(dao)14.4x4V時，充(chong)電(dian)(dian)結(jie)束(shu)。

　　有人說了，這還沒有充滿嘛!有什(shen)么(me)用(yong)?這就(jiu)(jiu)說錯(cuo)了：對于鉛(qian)(qian)酸(suan)蓄電池而言(yan)，放光電之后(hou)如果不及時(shi)充電，正、負極板上的硫酸(suan)鉛(qian)(qian)就(jiu)(jiu)開始(shi)結晶(jing)——這就(jiu)(jiu)是鉛(qian)(qian)酸(suan)蓄電池的癌(ai)癥病(bing)灶!稱為硫化(hua)。隨著硫化(hua)的不斷發(fa)展，鉛(qian)(qian)酸(suan)蓄電池的容(rong)量(liang)不斷下降，最終死亡——報廢(fei)了。能在第(di)一時(shi)間阻擊癌(ai)癥，為什(shen)么(me)不干(gan)?

　　2、如果60V電(dian)(dian)(dian)池組(zu)的(de)兩(liang)端電(dian)(dian)(dian)壓(ya)(ya)，要大于(yu)等于(yu)48V充電(dian)(dian)(dian)器最高輸出電(dian)(dian)(dian)壓(ya)(ya)，用48V充電(dian)(dian)(dian)器，是不(bu)能(neng)(neng)對(dui)60V電(dian)(dian)(dian)池組(zu)充電(dian)(dian)(dian)的(de)。因為充電(dian)(dian)(dian)是需要電(dian)(dian)(dian)位差的(de)，電(dian)(dian)(dian)壓(ya)(ya)高的(de)向電(dian)(dian)(dian)壓(ya)(ya)低的(de)才(cai)能(neng)(neng)充電(dian)(dian)(dian)的(de)。不(bu)過你也(ye)不(bu)用擔心，電(dian)(dian)(dian)池電(dian)(dian)(dian)壓(ya)(ya)高于(yu)充電(dian)(dian)(dian)器電(dian)(dian)(dian)壓(ya)(ya)時，電(dian)(dian)(dian)能(neng)(neng)會倒灌——充電(dian)(dian)(dian)器電(dian)(dian)(dian)路中，都設有防反接和倒充的(de)二極管。

　　3、如果你有動手能(neng)力的話，可以拆(chai)開48V充電(dian)器(qi)，找到(dao)調整輸出電(dian)壓的元(yuan)件(如384x類充電(dian)器(qi)接(jie)光(guang)耦(ou)的那個431)，調節431上的分壓電(dian)阻阻值(zhi)，就可以使充電(dian)器(qi)輸出電(dian)壓上升或下(xia)降。

　　可(ke)以調節它，使輸(shu)出(chu)電(dian)(dian)壓為14Vx5左(zuo)右，即(ji)可(ke)應(ying)急使用。不過(guo)需要注意(yi)，充電(dian)(dian)器(qi)次(ci)級(ji)濾(lv)波電(dian)(dian)容(rong)的耐(nai)(nai)壓值(48V充電(dian)(dian)器(qi)次(ci)級(ji)濾(lv)波電(dian)(dian)容(rong)的耐(nai)(nai)壓值多(duo)為63V)是否能承受(shou)了。最好更(geng)換(huan)為耐(nai)(nai)壓100V的。

　　另外還得注意場效應管的散熱問題(ti)和(he)最大功耗問題(ti)(48V充(chong)電(dian)器多(duo)用8N60及以下的，60V充(chong)電(dian)器多(duo)用12N60及以上的)。