一、18650鋰電池的壽命有多長

18650鋰電池的使用壽命都只(zhi)在三(san)年~五年。

18650鋰電(dian)池(chi)(chi)普遍都(dou)有著容(rong)量(liang)大、壽(shou)(shou)命(ming)(ming)長、安全(quan)(quan)性能高，3.7V的18650鋰(li)電(dian)池(chi)(chi)一般(ban)循環壽(shou)(shou)命(ming)(ming)可達(da)500~1000次左右，3.2V的18650一般(ban)壽(shou)(shou)命(ming)(ming)可達(da)2000以上。最好對鋰(li)電(dian)池(chi)(chi)進(jin)行部分放電(dian)，而不(bu)是完全(quan)(quan)放電(dian)，并且要(yao)盡量(liang)避免(mian)經(jing)常的完全(quan)(quan)放電(dian)。

二、18650鋰電池如何保養

很多人(ren)以(yi)為(wei)18650只要(yao)充(chong)一(yi)次或(huo)用一(yi)次就算(suan)循環充(chong)電(dian)(dian)(dian)(dian)，其實這是一(yi)個誤區，循環充(chong)電(dian)(dian)(dian)(dian)其實是指完全(quan)重放電(dian)(dian)(dian)(dian)的次數，鋰電(dian)(dian)(dian)(dian)池不(bu)同于(yu)鎳鎘電(dian)(dian)(dian)(dian)池，鋰電(dian)(dian)(dian)(dian)池不(bu)具有任何記憶效(xiao)應，隨時(shi)隨地(di)可以(yi)充(chong)電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)池有余電(dian)(dian)(dian)(dian)的情況下進行充(chong)電(dian)(dian)(dian)(dian)不(bu)但不(bu)會縮(suo)短使用壽命(ming)，還(huan)能對電(dian)(dian)(dian)(dian)池進行保(bao)養，延長其循環使用周(zhou)期(qi)，對于(yu)鋰電(dian)(dian)(dian)(dian)池，正確(que)的做法是緩充(chong)而不(bu)是深充(chong)。

想要延長18650鋰電(dian)池壽命(ming)，就得遵守以(yi)下幾點：

1、不要在極端的環境下使用，鋰電池怕冷也怕熱

理論上溫度在-20℃-55℃之(zhi)間(jian)可以(yi)正(zheng)常使(shi)(shi)用(yong)，日常生活(huo)中，使(shi)(shi)用(yong)溫度在5℃-35℃之(zhi)間(jian)對鋰電池是(shi)沒有傷害的(de)，北方的(de)用(yong)戶冬天盡可能(neng)把鋰電池取(qu)回家里存放，不(bu)要放到室外，南(nan)方的(de)用(yong)戶避免夏天暴曬。

2、鋰電池不要經常深度充放電

這個我們剛剛講了，對于鋰電池，正確的做法是緩充(chong)(chong)而不(bu)是深充(chong)(chong)。