目前充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器主(zhu)要是三(san)段(duan)(duan)式(shi)(shi)(shi)的(de)，依(yi)次(ci)為(wei)恒流(liu)(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)、恒壓(ya)(ya)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)、浮(fu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)三(san)個(ge)階段(duan)(duan)，俗稱三(san)段(duan)(duan)式(shi)(shi)(shi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器。開始用(yong)1.8安培(pei)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)逐漸升高(gao)，叫恒流(liu)(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)；電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)到了(le)一(yi)定值叫恒壓(ya)(ya)，在40伏(fu)左右(you)，最高(gao)充(chong)(chong)(chong)(chong)到44伏(fu)左右(you)，這個(ge)階段(duan)(duan)恒壓(ya)(ya)；最后一(yi)段(duan)(duan)，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)達(da)到44伏(fu)的(de)時候開始往下降(jiang)(jiang)，降(jiang)(jiang)到保底(di)點41伏(fu)，這時從涓(juan)流(liu)(liu)(liu)開始充(chong)(chong)(chong)(chong)，用(yong)100毫安小電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)慢(man)慢(man)充(chong)(chong)(chong)(chong)，最后一(yi)段(duan)(duan)主(zhu)要是保障讓(rang)電(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)足(zu)，同(tong)時不讓(rang)它過(guo)充(chong)(chong)(chong)(chong)，因為(wei)這時電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)很小。而一(yi)些(xie)低價位車為(wei)了(le)降(jiang)(jiang)低生產成本，忽(hu)略產品(pin)質(zhi)量(liang)用(yong)二段(duan)(duan)式(shi)(shi)(shi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器甚至是一(yi)段(duan)(duan)式(shi)(shi)(shi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器。二段(duan)(duan)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器沒有(you)涓(juan)流(liu)(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，容(rong)易過(guo)充(chong)(chong)(chong)(chong)，把電(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)成大肚子，導致電(dian)(dian)(dian)(dian)(dian)池報(bao)廢。