電動車充(chong)電器的功率不是固(gu)定(ding)不變的。

常(chang)見的(de)有 120 瓦(wa)(wa)(wa)和 180 瓦(wa)(wa)(wa)。120 瓦(wa)(wa)(wa)的(de)充電(dian)(dian)器一般(ban)適用于 48V 10 到(dao) 14AH 的(de)電(dian)(dian)池，180 瓦(wa)(wa)(wa)的(de)充電(dian)(dian)器通常(chang)適用于 48V 17 到(dao) 22AH 的(de)電(dian)(dian)池。

對于 48V 電(dian)池的電(dian)動車充(chong)電(dian)器，在不(bu)同充(chong)電(dian)階段功(gong)率(lv)不(bu)一樣(yang)。第一階段充(chong)電(dian)電(dian)流約(yue)(yue)(yue) 1.8 安，電(dian)功(gong)率(lv)約(yue)(yue)(yue) 110 瓦(wa)；第二(er)階段充(chong)電(dian)電(dian)流約(yue)(yue)(yue) 0.5 到 1 安，電(dian)功(gong)率(lv)約(yue)(yue)(yue) 60 瓦(wa)；充(chong)滿轉為涓流充(chong)電(dian)時，功(gong)率(lv)約(yue)(yue)(yue) 10 瓦(wa)。

比如(ru)常見的 48V20AH 電(dian)(dian)(dian)(dian)(dian)動車電(dian)(dian)(dian)(dian)(dian)池(chi)，完全放電(dian)(dian)(dian)(dian)(dian)后充電(dian)(dian)(dian)(dian)(dian)一(yi)次(ci)約需 1.08 度電(dian)(dian)(dian)(dian)(dian)，充電(dian)(dian)(dian)(dian)(dian)時間(jian)一(yi)般在(zai) 8 到(dao) 10 小時，每小時用電(dian)(dian)(dian)(dian)(dian)量約在(zai) 0.1 到(dao) 0.14 度電(dian)(dian)(dian)(dian)(dian)。

另外，電(dian)池功率以 wh 為單位，由(you)電(dian)池容量乘以電(dian)壓得出。像常見的 48V20AH 電(dian)池，其(qi)功率容量就是 48×20=960wh=0.96kwh。

而且(qie)，充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)功率(lv)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容量(liang)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)相(xiang)關。比如(ru) 12AH 蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流 1.8 安，20AH 蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流 2.8 安，32AH 蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流 4.5 安。48V 充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya) 59V，60V 蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya) 73V，72V 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)瓶(ping)輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya) 88V，不同容量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)瓶(ping)乘以對應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值就是充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)輸出(chu)(chu)功率(lv)。

需(xu)要注意的(de)(de)是(shi)，電(dian)(dian)(dian)動車(che)充(chong)電(dian)(dian)(dian)器(qi)一(yi)定(ding)要專(zhuan)車(che)專(zhuan)用。用不匹(pi)配(pei)的(de)(de)充(chong)電(dian)(dian)(dian)器(qi)充(chong)電(dian)(dian)(dian)，可(ke)能導(dao)致電(dian)(dian)(dian)池(chi)發(fa)熱、失水(shui)、膨脹變形，縮短電(dian)(dian)(dian)池(chi)壽命。比如用 60V 的(de)(de)充(chong)電(dian)(dian)(dian)器(qi)給 48V 的(de)(de)電(dian)(dian)(dian)動車(che)充(chong)電(dian)(dian)(dian)，就可(ke)能出現這些問題。所以(yi)，一(yi)定(ding)要使用配(pei)套的(de)(de)充(chong)電(dian)(dian)(dian)器(qi)給電(dian)(dian)(dian)動車(che)充(chong)電(dian)(dian)(dian)。

（圖(tu)/文(wen)/攝：太平洋汽車 整理于互聯網(wang)）