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、造價低、充(chong)(chong)電(dian)(dian)(dian)效率低，現在基本上(shang)很(hen)少(shao)采用。目前使(shi)用比較廣泛的(de)是電(dian)(dian)(dian)子充(chong)(chong)電(dian)(dian)(dian)器。蓄(xu)電(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)機輸(shu)入(ru)交流(liu)(liu)電(dian)(dian)(dian)壓(ya)為220V左右，輸(shu)出端接蓄(xu)電(dian)(dian)(dian)池，其充(chong)(chong)電(dian)(dian)(dian)方式：其一，以大電(dian)(dian)(dian)流(liu)(liu)脈沖充(chong)(chong)電(dian)(dian)(dian)間歇放(fang)電(dian)(dian)(dian)、補償；其二，以恒流(liu)(liu)、恒壓(ya)浮(fu)沖保持(chi)對被沖的(de)蓄(xu)電(dian)(dian)(dian)池提(ti)供(gong)穩定(ding)的(de)充(chong)(chong)電(dian)(dian)(dian)壓(ya)及電(dian)(dian)(dian)流(liu)(liu)。

充(chong)電(dian)機具(ju)有輸(shu)出(chu)短路保護、輸(shu)出(chu)過(guo)壓、過(guo)流保護及過(guo)沖保護功能(neng)，保證蓄電(dian)池使用壽命。由于(yu)近些(xie)年來快速(su)充(chong)電(dian)技(ji)術的發展，使傳統的鉛(qian)酸蓄電(dian)池快速(su)充(chong)電(dian)性能(neng)不好的概念已有了新的改變(bian)。實驗證明：多(duo)數閥控(kong)式鉛(qian)酸電(dian)池可以承受(shou)快速(su)充(chong)電(dian)，而且合理(li)的快速(su)充(chong)電(dian)對延長電(dian)池壽命不但無(wu)害而且有利。