蓄電池充電機最早采用的是變壓器式的充電機，但是由于變壓器式充電機的(de)體積過于大、笨(ben)重(zhong)、造價低、充(chong)(chong)電(dian)(dian)效率(lv)低，現在基本上很少(shao)采用。目前使用比較廣(guang)泛的(de)是電(dian)(dian)子(zi)充(chong)(chong)電(dian)(dian)器。蓄電(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)機輸入交流(liu)(liu)電(dian)(dian)壓(ya)為220V左右，輸出端(duan)接蓄電(dian)(dian)池(chi)，其充(chong)(chong)電(dian)(dian)方式：其一，以(yi)大電(dian)(dian)流(liu)(liu)脈沖充(chong)(chong)電(dian)(dian)間歇放電(dian)(dian)、補償；其二，以(yi)恒流(liu)(liu)、恒壓(ya)浮(fu)沖保持對(dui)被沖的(de)蓄電(dian)(dian)池(chi)提供(gong)穩(wen)定的(de)充(chong)(chong)電(dian)(dian)壓(ya)及電(dian)(dian)流(liu)(liu)。

充(chong)電(dian)機具有輸出短路保(bao)(bao)(bao)護、輸出過(guo)壓、過(guo)流保(bao)(bao)(bao)護及過(guo)沖保(bao)(bao)(bao)護功能(neng)，保(bao)(bao)(bao)證蓄電(dian)池(chi)使(shi)(shi)用壽(shou)(shou)命。由于近些年來快(kuai)速(su)充(chong)電(dian)技術的(de)發展，使(shi)(shi)傳統的(de)鉛酸蓄電(dian)池(chi)快(kuai)速(su)充(chong)電(dian)性能(neng)不好的(de)概念已有了新的(de)改變。實驗證明：多數閥控式鉛酸電(dian)池(chi)可以(yi)承受快(kuai)速(su)充(chong)電(dian)，而且合(he)理的(de)快(kuai)速(su)充(chong)電(dian)對(dui)延長電(dian)池(chi)壽(shou)(shou)命不但無害而且有利。