危險，一般(ban)不(bu)(bu)建議這(zhe)樣用(yong)，雖(sui)然沒有脈沖功能的(de)(de)(de)充(chong)電(dian)(dian)器，理論是(shi)可以給(gei)鋰(li)電(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)的(de)(de)(de)，但是(shi)依(yi)然可能會(hui)傷(shang)害鋰(li)電(dian)(dian)池(chi)(chi)，雖(sui)然鋰(li)電(dian)(dian)池(chi)(chi)有保(bao)護(hu)板(ban)，理論過(guo)充(chong)或者過(guo)放時候能起到保(bao)護(hu)作(zuo)用(yong)，如(ru)果充(chong)電(dian)(dian)時經常(chang)觸發過(guo)充(chong)保(bao)護(hu)電(dian)(dian)壓(ya)，那(nei)這(zhe)個充(chong)電(dian)(dian)器的(de)(de)(de)輸出(chu)電(dian)(dian)壓(ya)設置就不(bu)(bu)正確。發生這(zhe)樣的(de)(de)(de)現象后，那(nei)落后的(de)(de)(de)電(dian)(dian)池(chi)(chi)永遠落后。有保(bao)護(hu)板(ban)也盡(jin)量不(bu)(bu)要高(gao)。因(yin)為電(dian)(dian)池(chi)(chi)在(zai)電(dian)(dian)池(chi)(chi)盒里使用(yong)，平(ping)時是(shi)看(kan)不(bu)(bu)到電(dian)(dian)池(chi)(chi)的(de)(de)(de)一致性狀態(tai)的(de)(de)(de)，不(bu)(bu)知什么時候，萬一它(ta)的(de)(de)(de)一致性出(chu)問題了(le)，這(zhe)時電(dian)(dian)壓(ya)又(you)高(gao)了(le)幾V。那(nei)電(dian)(dian)池(chi)(chi)就要倒大(da)霉了(le)。

實際上，鉛酸蓄電池充電器為了(le)克服(fu)鉛(qian)酸的(de)大內(nei)阻,在恒流(liu)充電(dian)(dian)(dian)(dian)時把(ba)(ba)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)提高了(le)5%左(zuo)右,也(ye)就是說就是你選用了(le)一樣電(dian)(dian)(dian)(dian)壓(ya)充電(dian)(dian)(dian)(dian)器(qi)，給鋰電(dian)(dian)(dian)(dian)池(chi)(chi)供電(dian)(dian)(dian)(dian)時候，電(dian)(dian)(dian)(dian)壓(ya)會(hui)高出來一點(dian)的(de)，因為鉛(qian)酸的(de)內(nei)阻大，恒流(liu)充電(dian)(dian)(dian)(dian)為了(le)達到效率都(dou)是在恒流(liu)時把(ba)(ba)恒壓(ya)電(dian)(dian)(dian)(dian)壓(ya)升(sheng)高，這樣對鋰電(dian)(dian)(dian)(dian)池(chi)(chi)是很不(bu)利的(de)。

主(zhu)要是鉛酸電(dian)池充(chong)電(dian)過程中有二個電(dian)壓(ya)點會析(xi)氫(qing)和析(xi)氧，析(xi)氧電(dian)壓(ya)點為(wei)13.8V，析(xi)氫(qing)電(dian)壓(ya)點為(wei)14.7V，所以鉛酸充(chong)電(dian)器的高恒壓(ya)定在14.7V*塊數；低恒壓(ya)（浮充(chong)電(dian)壓(ya)）定在13.8V*塊數。

鋰電(dian)池保(bao)護(hu)(hu)(hu)板的(de)(de)保(bao)護(hu)(hu)(hu)電(dian)壓(ya)點如果是(shi)4.2V,那放心使用(yong),無(wu)非就不(bu)要恒壓(ya)而已充電(dian),但普(pu)通(tong)的(de)(de)保(bao)護(hu)(hu)(hu)板啟動(dong)電(dian)壓(ya)時4.25V,加上+/-0.035V的(de)(de)誤差,不(bu)是(shi)很(hen)(hen)安全吧? 18650可(ke)能沒(mei)多(duo)大(da)事,鋁殼(ke)大(da)單體難說了，很(hen)(hen)多(duo)鋰電(dian)池使用(yong)的(de)(de)是(shi)正常普(pu)通(tong)的(de)(de)保(bao)護(hu)(hu)(hu)板,保(bao)護(hu)(hu)(hu)板截止保(bao)護(hu)(hu)(hu)電(dian)壓(ya)4.25V ，所以這個保(bao)護(hu)(hu)(hu)在關鍵時候可(ke)能會起不(bu)到作用(yong)。

鋰(li)電池(chi)(chi)內阻小，比(bi)如13串鋰(li)電池(chi)(chi)也就(jiu)是(shi)48伏(fu)，截止(zhi)電壓要控制在54.6伏(fu)因為，而(er)鉛(qian)酸電池(chi)(chi)恒流截止(zhi)電壓是(shi)57.9伏(fu)，高出幾伏(fu)了。

當然，鉛(qian)酸電(dian)(dian)(dian)池如(ru)(ru)果改進一(yi)下是(shi)可(ke)(ke)以(yi)給(gei)鋰(li)(li)電(dian)(dian)(dian)池充(chong)(chong)(chong)電(dian)(dian)(dian)的(de)(de)，比如(ru)(ru)去掉低(di)恒(heng)壓階(jie)段(duan)(duan)電(dian)(dian)(dian)路(lu)和(he)脈沖電(dian)(dian)(dian)路(lu)，是(shi)可(ke)(ke)以(yi)用的(de)(de)。如(ru)(ru)果你如(ru)(ru)果觀察鋰(li)(li)電(dian)(dian)(dian)的(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)曲線，可(ke)(ke)以(yi)發現在恒(heng)流階(jie)段(duan)(duan)充(chong)(chong)(chong)入約為96%的(de)(de)總(zong)容量；恒(heng)壓減(jian)流階(jie)段(duan)(duan)只(zhi)(zhi)充(chong)(chong)(chong)入4%的(de)(de)容量，如(ru)(ru)果轉燈就(jiu)拔時，那(nei)鋰(li)(li)電(dian)(dian)(dian)已(yi)經充(chong)(chong)(chong)入了(le)(le)99.5%的(de)(de)容量了(le)(le)。所以(yi)鉛(qian)酸充(chong)(chong)(chong)電(dian)(dian)(dian)器充(chong)(chong)(chong)鋰(li)(li)電(dian)(dian)(dian)，也(ye)就(jiu)是(shi)少(shao)了(le)(le)最后的(de)(de)均衡和(he)浮充(chong)(chong)(chong)那(nei)0.5%的(de)(de)電(dian)(dian)(dian)量而(er)已(yi)。將(jiang)鉛(qian)充(chong)(chong)(chong)的(de)(de)高低(di)恒(heng)壓都低(di)調點(dian)，就(jiu)都可(ke)(ke)以(yi)給(gei)鋰(li)(li)電(dian)(dian)(dian)充(chong)(chong)(chong)電(dian)(dian)(dian)了(le)(le)，只(zhi)(zhi)不過充(chong)(chong)(chong)不滿而(er)已(yi)。不過鋰(li)(li)電(dian)(dian)(dian)又(you)不會(hui)(hui)硫化(hua)，充(chong)(chong)(chong)不滿就(jiu)充(chong)(chong)(chong)不滿吧，又(you)不影響使用，壽命還會(hui)(hui)延長(chang)呀。

還有(you)一個(ge)方法，打開外殼，把三(san)極管C極串(chuan)聯(lian)那(nei)個(ge)電(dian)(dian)阻阻值提(ti)升10倍,恒流(liu)只提(ti)升0.5%電(dian)(dian)壓(ya),再調節下恒壓(ya)點(dian),盡(jin)量做到每一個(ge)電(dian)(dian)池電(dian)(dian)壓(ya)均衡(heng)到4.18V左右為好。