蓄電池電壓范圍是從6V起到330V這樣，主要是看鉛酸蓄電池使用的具體工況而定。一個鉛酸蓄電池單格標稱電勢為2V，由3個單格串連起來的蓄電池標稱電勢就是6V，是指蓄電池組的標稱電勢，它是由蓄電池所采用活性物質的特性決定的理論值。

　　實際(ji)上，不(bu)同(tong)的(de)(de)(de)狀況下(xia)蓄(xu)(xu)電(dian)(dian)池的(de)(de)(de)電(dian)(dian)壓(ya)和標(biao)稱(cheng)電(dian)(dian)勢存在(zai)差異。比如：一個標(biao)稱(cheng)電(dian)(dian)勢為12V的(de)(de)(de)正常的(de)(de)(de)鉛酸蓄(xu)(xu)電(dian)(dian)池在(zai)充電(dian)(dian)過程的(de)(de)(de)末期，充電(dian)(dian)極(ji)(ji)化達到最大值，電(dian)(dian)壓(ya)可以達到14.4V或更高一點(dian)；在(zai)放電(dian)(dian)將終(zhong)了時(shi)，放電(dian)(dian)極(ji)(ji)化達到最大值，電(dian)(dian)壓(ya)可以低到9V左(zuo)右。而充電(dian)(dian)或者(zhe)放電(dian)(dian)停止并且靜置數(shu)小時(shi)后，極(ji)(ji)化電(dian)(dian)壓(ya)（濃度(du)極(ji)(ji)化）完(wan)全消失，這個12V的(de)(de)(de)蓄(xu)(xu)電(dian)(dian)池的(de)(de)(de)電(dian)(dian)勢可以在(zai)13.8V（充滿后）至11V（放完(wan)后）之間(jian)，此時(shi)的(de)(de)(de)差異是蓄(xu)(xu)電(dian)(dian)池內部(bu)的(de)(de)(de)活(huo)性物質狀態(tai)的(de)(de)(de)改變造成(cheng)的(de)(de)(de)。

在(zai)市(shi)場上看到的(de)(de)蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)巨大多數(shu)都是標的(de)(de)12V電(dian)壓，這個主(zhu)要(yao)是因為汽車行(xing)業發(fa)展(zhan)，其點火(huo)發(fa)動需求(qiu)的(de)(de)電(dian)壓是12V，所以市(shi)場主(zhu)流的(de)(de)蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)是12V的(de)(de)電(dian)壓。鉛酸蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)除(chu)了用作汽車啟動電(dian)源(yuan)外，還有(you)很多別的(de)(de)電(dian)壓數(shu)值的(de)(de)電(dian)池(chi)(chi)(chi)(chi)，比如6V蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)的(de)(de)應急照明電(dian)源(yuan)，220V蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)的(de)(de)太陽能(neng)儲能(neng)電(dian)池(chi)(chi)(chi)(chi)，48V蓄(xu)(xu)電(dian)池(chi)(chi)(chi)(chi)的(de)(de)電(dian)動摩托車電(dian)池(chi)(chi)(chi)(chi)等。

　　1、根(gen)據電(dian)(dian)(dian)池工業標準(zhun)：電(dian)(dian)(dian)瓶(ping)、充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池等的(de)“終止(zhi)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)(ya)”約為(wei)1.2倍(bei)的(de)額定(ding)電(dian)(dian)(dian)壓(ya)(ya)。充(chong)(chong)電(dian)(dian)(dian)時電(dian)(dian)(dian)壓(ya)(ya)達到1.2倍(bei)即可認為(wei)充(chong)(chong)電(dian)(dian)(dian)已完成。對于(yu)12V的(de)電(dian)(dian)(dian)瓶(ping)，其終止(zhi)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)(ya)為(wei)（12V×1.2）14.4V。低于(yu)14.4V屬(shu)于(yu)充(chong)(chong)電(dian)(dian)(dian)不足(zu)，會損(sun)壞電(dian)(dian)(dian)瓶(ping)的(de)。

　　2、充電電池(chi)、電瓶有兩怕：過充電和過放電。所以充電電池(chi)都有保護的。例(li)如手機(ji)使用的鋰(li)電池(chi)，它的終止充電電壓為（3.6V×1.2倍）≈4.3V

　　3、12V電(dian)(dian)瓶用(yong)16V2.2A的電(dian)(dian)源充(chong)電(dian)(dian)，必(bi)須要有終(zhong)止充(chong)電(dian)(dian)電(dian)(dian)壓設置。另外，充(chong)電(dian)(dian)電(dian)(dian)流也是重要的，應根據(ju)電(dian)(dian)瓶容量來設定合(he)理的范圍。

其實不管(guan)蓄(xu)電(dian)池(chi)電(dian)壓(ya)(ya)(ya)是(shi)多(duo)(duo)少(shao)，其都(dou)有一個基礎單(dan)位數字電(dian)壓(ya)(ya)(ya)，即單(dan)格標稱電(dian)勢(shi)為2V，需要電(dian)壓(ya)(ya)(ya)多(duo)(duo)少(shao)伏，就依據這個2V單(dan)格以串聯(lian)(lian)的方式來實現(xian)，至于(yu)蓄(xu)電(dian)池(chi)的容量問題，則是(shi)根據需求通(tong)過并聯(lian)(lian)的方式來實現(xian)。

大家需要(yao)理解的誤(wu)區是：單格容(rong)量為(wei)25AH和一(yi)個(ge)25AH容(rong)量的蓄電池是不一(yi)樣的

雖(sui)然從數字上看，它們是一(yi)樣的(de)，但概念是不一(yi)樣的(de)，單(dan)(dan)(dan)(dan)格(ge)容(rong)量(liang)(liang)(liang)為(wei)(wei)(wei)25AH表(biao)示電(dian)(dian)(dian)(dian)(dian)壓為(wei)(wei)(wei)2V，輸出容(rong)量(liang)(liang)(liang)為(wei)(wei)(wei)25Ah，僅適合2V左(zuo)右(you)直流驅(qu)動設備(bei)使用；而通常說一(yi)個(ge)(ge)25AH容(rong)量(liang)(liang)(liang)的(de)蓄(xu)(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)指(zhi)的(de)是標稱電(dian)(dian)(dian)(dian)(dian)壓12V，總容(rong)量(liang)(liang)(liang)為(wei)(wei)(wei)25Ah；蓄(xu)(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)通常由多個(ge)(ge)單(dan)(dan)(dan)(dan)格(ge)專(zhuan)蓄(xu)(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)而成，3個(ge)(ge)單(dan)(dan)(dan)(dan)格(ge)串聯(lian)為(wei)(wei)(wei)6V，6個(ge)(ge)串聯(lian)為(wei)(wei)(wei)12V。串聯(lian)后(hou)(hou)，電(dian)(dian)(dian)(dian)(dian)壓提高(gao)，總容(rong)量(liang)(liang)(liang)不變(bian)，例如，6個(ge)(ge)單(dan)(dan)(dan)(dan)格(ge)容(rong)量(liang)(liang)(liang)為(wei)(wei)(wei)25AH電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)，容(rong)量(liang)(liang)(liang)仍(reng)屬(shu)為(wei)(wei)(wei)25AH，但電(dian)(dian)(dian)(dian)(dian)壓為(wei)(wei)(wei)原(yuan)來的(de)6倍，即(ji)12V，單(dan)(dan)(dan)(dan)格(ge)蓄(xu)(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)串聯(lian)后(hou)(hou)，電(dian)(dian)(dian)(dian)(dian)壓提高(gao)，可以帶動更大功率的(de)負載。