危險，一(yi)(yi)(yi)般不(bu)建(jian)議(yi)這樣(yang)用(yong)(yong)，雖然(ran)沒有脈沖(chong)功能(neng)的(de)充電(dian)(dian)器(qi)，理論(lun)是(shi)可以(yi)給鋰(li)(li)電(dian)(dian)池(chi)(chi)(chi)充電(dian)(dian)的(de)，但是(shi)依然(ran)可能(neng)會傷害鋰(li)(li)電(dian)(dian)池(chi)(chi)(chi)，雖然(ran)鋰(li)(li)電(dian)(dian)池(chi)(chi)(chi)有保(bao)護板，理論(lun)過(guo)充或(huo)者過(guo)放時(shi)候(hou)(hou)能(neng)起到保(bao)護作用(yong)(yong)，如果充電(dian)(dian)時(shi)經常觸發(fa)過(guo)充保(bao)護電(dian)(dian)壓(ya)，那(nei)這個充電(dian)(dian)器(qi)的(de)輸(shu)出電(dian)(dian)壓(ya)設置就不(bu)正確(que)。發(fa)生(sheng)這樣(yang)的(de)現象后(hou)，那(nei)落后(hou)的(de)電(dian)(dian)池(chi)(chi)(chi)永遠(yuan)落后(hou)。有保(bao)護板也(ye)盡量不(bu)要高。因為電(dian)(dian)池(chi)(chi)(chi)在電(dian)(dian)池(chi)(chi)(chi)盒里(li)使用(yong)(yong)，平(ping)時(shi)是(shi)看不(bu)到電(dian)(dian)池(chi)(chi)(chi)的(de)一(yi)(yi)(yi)致(zhi)性(xing)狀態的(de)，不(bu)知什(shen)么時(shi)候(hou)(hou)，萬一(yi)(yi)(yi)它的(de)一(yi)(yi)(yi)致(zhi)性(xing)出問題了，這時(shi)電(dian)(dian)壓(ya)又高了幾V。那(nei)電(dian)(dian)池(chi)(chi)(chi)就要倒大霉了。

實際上，鉛酸蓄電池充電器為了克服鉛酸(suan)的大內阻,在恒(heng)(heng)流(liu)充電(dian)(dian)(dian)時把(ba)充電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)提高了5%左右,也(ye)就(jiu)是說(shuo)就(jiu)是你選用了一(yi)樣(yang)電(dian)(dian)(dian)壓(ya)充電(dian)(dian)(dian)器，給鋰(li)電(dian)(dian)(dian)池(chi)供電(dian)(dian)(dian)時候，電(dian)(dian)(dian)壓(ya)會高出來一(yi)點的，因為鉛酸(suan)的內阻大，恒(heng)(heng)流(liu)充電(dian)(dian)(dian)為了達到(dao)效率(lv)都是在恒(heng)(heng)流(liu)時把(ba)恒(heng)(heng)壓(ya)電(dian)(dian)(dian)壓(ya)升(sheng)高，這樣(yang)對鋰(li)電(dian)(dian)(dian)池(chi)是很(hen)不利(li)的。

主要是鉛(qian)酸(suan)電池充電過程中有二個電壓(ya)點會析(xi)氫和析(xi)氧(yang)，析(xi)氧(yang)電壓(ya)點為(wei)13.8V，析(xi)氫電壓(ya)點為(wei)14.7V，所以鉛(qian)酸(suan)充電器的(de)高恒壓(ya)定在(zai)14.7V*塊數(shu)；低恒壓(ya)（浮充電壓(ya)）定在(zai)13.8V*塊數(shu)。

鋰電(dian)(dian)池(chi)保(bao)護板(ban)的(de)(de)保(bao)護電(dian)(dian)壓點如果是(shi)4.2V,那放心使用(yong),無非就(jiu)不(bu)要恒壓而已充電(dian)(dian),但普通(tong)(tong)的(de)(de)保(bao)護板(ban)啟動電(dian)(dian)壓時4.25V,加上(shang)+/-0.035V的(de)(de)誤差,不(bu)是(shi)很安(an)全吧? 18650可(ke)能(neng)沒多大(da)事,鋁殼大(da)單體(ti)難說了，很多鋰電(dian)(dian)池(chi)使用(yong)的(de)(de)是(shi)正(zheng)常普通(tong)(tong)的(de)(de)保(bao)護板(ban),保(bao)護板(ban)截止保(bao)護電(dian)(dian)壓4.25V ，所以這個保(bao)護在關鍵時候可(ke)能(neng)會起不(bu)到作用(yong)。

鋰電(dian)(dian)池(chi)內(nei)阻小，比如13串鋰電(dian)(dian)池(chi)也就(jiu)是(shi)48伏(fu)(fu)，截止電(dian)(dian)壓要控(kong)制(zhi)在54.6伏(fu)(fu)因為(wei)，而鉛酸電(dian)(dian)池(chi)恒流截止電(dian)(dian)壓是(shi)57.9伏(fu)(fu)，高出幾伏(fu)(fu)了。

當然，鉛(qian)酸電(dian)(dian)(dian)(dian)(dian)池如(ru)(ru)果(guo)改進一下是(shi)(shi)可(ke)以(yi)(yi)給鋰電(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)的(de)，比(bi)如(ru)(ru)去掉(diao)低(di)恒(heng)壓(ya)階段電(dian)(dian)(dian)(dian)(dian)路和脈沖電(dian)(dian)(dian)(dian)(dian)路，是(shi)(shi)可(ke)以(yi)(yi)用的(de)。如(ru)(ru)果(guo)你(ni)如(ru)(ru)果(guo)觀(guan)察(cha)鋰電(dian)(dian)(dian)(dian)(dian)的(de)充(chong)電(dian)(dian)(dian)(dian)(dian)曲線，可(ke)以(yi)(yi)發現(xian)在恒(heng)流階段充(chong)入約(yue)為96%的(de)總(zong)容(rong)量(liang)；恒(heng)壓(ya)減(jian)流階段只(zhi)(zhi)充(chong)入4%的(de)容(rong)量(liang)，如(ru)(ru)果(guo)轉燈就(jiu)(jiu)拔時，那鋰電(dian)(dian)(dian)(dian)(dian)已經充(chong)入了(le)(le)99.5%的(de)容(rong)量(liang)了(le)(le)。所以(yi)(yi)鉛(qian)酸充(chong)電(dian)(dian)(dian)(dian)(dian)器充(chong)鋰電(dian)(dian)(dian)(dian)(dian)，也(ye)就(jiu)(jiu)是(shi)(shi)少了(le)(le)最后的(de)均衡和浮充(chong)那0.5%的(de)電(dian)(dian)(dian)(dian)(dian)量(liang)而已。將鉛(qian)充(chong)的(de)高低(di)恒(heng)壓(ya)都低(di)調點，就(jiu)(jiu)都可(ke)以(yi)(yi)給鋰電(dian)(dian)(dian)(dian)(dian)充(chong)電(dian)(dian)(dian)(dian)(dian)了(le)(le)，只(zhi)(zhi)不(bu)(bu)(bu)過充(chong)不(bu)(bu)(bu)滿(man)而已。不(bu)(bu)(bu)過鋰電(dian)(dian)(dian)(dian)(dian)又(you)不(bu)(bu)(bu)會硫化，充(chong)不(bu)(bu)(bu)滿(man)就(jiu)(jiu)充(chong)不(bu)(bu)(bu)滿(man)吧，又(you)不(bu)(bu)(bu)影響使(shi)用，壽命還會延長呀。

還(huan)有(you)一個方法，打開(kai)外殼，把三極(ji)管C極(ji)串(chuan)聯那個電(dian)阻阻值提升10倍(bei),恒(heng)流只提升0.5%電(dian)壓(ya),再調(diao)節下恒(heng)壓(ya)點(dian),盡量做(zuo)到(dao)每(mei)一個電(dian)池(chi)電(dian)壓(ya)均(jun)衡到(dao)4.18V左右(you)為好。