危險，一(yi)般(ban)不建議這(zhe)(zhe)(zhe)樣(yang)用，雖然(ran)沒有(you)脈沖功(gong)能(neng)的(de)(de)(de)充(chong)(chong)電(dian)(dian)器，理論是可(ke)以給鋰電(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)的(de)(de)(de)，但是依然(ran)可(ke)能(neng)會傷害(hai)鋰電(dian)(dian)池(chi)，雖然(ran)鋰電(dian)(dian)池(chi)有(you)保(bao)護板，理論過(guo)(guo)充(chong)(chong)或者過(guo)(guo)放時候能(neng)起到保(bao)護作用，如果(guo)充(chong)(chong)電(dian)(dian)時經常觸發過(guo)(guo)充(chong)(chong)保(bao)護電(dian)(dian)壓，那這(zhe)(zhe)(zhe)個充(chong)(chong)電(dian)(dian)器的(de)(de)(de)輸出電(dian)(dian)壓設置就不正確。發生這(zhe)(zhe)(zhe)樣(yang)的(de)(de)(de)現象后(hou)，那落后(hou)的(de)(de)(de)電(dian)(dian)池(chi)永遠落后(hou)。有(you)保(bao)護板也盡量不要(yao)高。因為電(dian)(dian)池(chi)在電(dian)(dian)池(chi)盒(he)里使用，平時是看不到電(dian)(dian)池(chi)的(de)(de)(de)一(yi)致性(xing)狀態的(de)(de)(de)，不知什(shen)么時候，萬一(yi)它的(de)(de)(de)一(yi)致性(xing)出問題了(le)(le)，這(zhe)(zhe)(zhe)時電(dian)(dian)壓又高了(le)(le)幾(ji)V。那電(dian)(dian)池(chi)就要(yao)倒大(da)霉了(le)(le)。

實際上，鉛酸蓄電池充電器為(wei)了(le)(le)克服鉛酸的大(da)內(nei)阻,在恒(heng)流充(chong)電(dian)(dian)時把(ba)充(chong)電(dian)(dian)電(dian)(dian)壓(ya)提高了(le)(le)5%左右,也就是說(shuo)就是你選用了(le)(le)一樣電(dian)(dian)壓(ya)充(chong)電(dian)(dian)器，給(gei)鋰電(dian)(dian)池(chi)供(gong)電(dian)(dian)時候，電(dian)(dian)壓(ya)會(hui)高出(chu)來一點的，因為(wei)鉛酸的內(nei)阻大(da)，恒(heng)流充(chong)電(dian)(dian)為(wei)了(le)(le)達到效(xiao)率都(dou)是在恒(heng)流時把(ba)恒(heng)壓(ya)電(dian)(dian)壓(ya)升高，這(zhe)樣對鋰電(dian)(dian)池(chi)是很不利的。

主要是(shi)鉛酸電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)過程中有二(er)個電(dian)(dian)(dian)壓(ya)(ya)點會析(xi)氫(qing)和析(xi)氧，析(xi)氧電(dian)(dian)(dian)壓(ya)(ya)點為13.8V，析(xi)氫(qing)電(dian)(dian)(dian)壓(ya)(ya)點為14.7V，所以鉛酸充(chong)電(dian)(dian)(dian)器的高恒壓(ya)(ya)定(ding)在14.7V*塊數；低恒壓(ya)(ya)（浮充(chong)電(dian)(dian)(dian)壓(ya)(ya)）定(ding)在13.8V*塊數。

鋰(li)電(dian)池保(bao)護(hu)(hu)(hu)板的保(bao)護(hu)(hu)(hu)電(dian)壓(ya)點如果(guo)是(shi)4.2V,那放心使用(yong),無非就不要恒(heng)壓(ya)而已充(chong)電(dian),但普通的保(bao)護(hu)(hu)(hu)板啟動電(dian)壓(ya)時(shi)4.25V,加上+/-0.035V的誤差,不是(shi)很(hen)安(an)全吧? 18650可能(neng)沒(mei)多大(da)(da)事,鋁(lv)殼(ke)大(da)(da)單體(ti)難說(shuo)了，很(hen)多鋰(li)電(dian)池使用(yong)的是(shi)正常普通的保(bao)護(hu)(hu)(hu)板,保(bao)護(hu)(hu)(hu)板截(jie)止保(bao)護(hu)(hu)(hu)電(dian)壓(ya)4.25V ，所以這個保(bao)護(hu)(hu)(hu)在關鍵(jian)時(shi)候可能(neng)會起不到作用(yong)。

鋰電池內阻(zu)小，比如13串(chuan)鋰電池也就是48伏，截止電壓(ya)要(yao)控制在54.6伏因為，而鉛(qian)酸電池恒流截止電壓(ya)是57.9伏，高出幾伏了。

當(dang)然，鉛(qian)酸(suan)電(dian)(dian)池如果改進一(yi)下是可(ke)以(yi)(yi)給(gei)鋰電(dian)(dian)池充(chong)(chong)(chong)電(dian)(dian)的(de)，比如去掉低(di)恒(heng)壓(ya)階(jie)(jie)段(duan)電(dian)(dian)路和脈沖(chong)電(dian)(dian)路，是可(ke)以(yi)(yi)用的(de)。如果你如果觀察鋰電(dian)(dian)的(de)充(chong)(chong)(chong)電(dian)(dian)曲線，可(ke)以(yi)(yi)發現在恒(heng)流(liu)階(jie)(jie)段(duan)充(chong)(chong)(chong)入約為(wei)96%的(de)總容量(liang)；恒(heng)壓(ya)減流(liu)階(jie)(jie)段(duan)只充(chong)(chong)(chong)入4%的(de)容量(liang)，如果轉燈就拔(ba)時，那(nei)鋰電(dian)(dian)已經充(chong)(chong)(chong)入了(le)99.5%的(de)容量(liang)了(le)。所以(yi)(yi)鉛(qian)酸(suan)充(chong)(chong)(chong)電(dian)(dian)器(qi)充(chong)(chong)(chong)鋰電(dian)(dian)，也(ye)就是少了(le)最后(hou)的(de)均(jun)衡和浮充(chong)(chong)(chong)那(nei)0.5%的(de)電(dian)(dian)量(liang)而已。將鉛(qian)充(chong)(chong)(chong)的(de)高低(di)恒(heng)壓(ya)都(dou)低(di)調點，就都(dou)可(ke)以(yi)(yi)給(gei)鋰電(dian)(dian)充(chong)(chong)(chong)電(dian)(dian)了(le)，只不(bu)過充(chong)(chong)(chong)不(bu)滿而已。不(bu)過鋰電(dian)(dian)又不(bu)會硫化，充(chong)(chong)(chong)不(bu)滿就充(chong)(chong)(chong)不(bu)滿吧，又不(bu)影響使用，壽命還會延長呀(ya)。

還有一(yi)個(ge)方法，打開外殼，把三極管C極串聯那個(ge)電阻(zu)阻(zu)值提升10倍,恒(heng)流只提升0.5%電壓(ya),再調節下(xia)恒(heng)壓(ya)點,盡(jin)量(liang)做到每一(yi)個(ge)電池(chi)電壓(ya)均(jun)衡到4.18V左右為好。