不充飽和的電會延長iPad電池壽命
有消息稱新iPad充(chong)電(dian)使(shi)用充(chong)電(dian)器充(chong)電(dian)顯示達到100%后,繼續(xu)再(zai)充(chong)一小時仍然無法達到真正的(de)滿電(dian)狀(zhuang)態(tai),也許(xu)讓(rang)新iPad充(chong)更多的(de)時間可能是(shi)一個(ge)好(hao)方(fang)法,但實際(ji)上這不是(shi)最佳(jia)方(fang)案。
因為在(zai)這里忽略了(le)鋰離(li)子(zi)電(dian)(dian)池(chi)(chi)(chi)的壽(shou)(shou)命(ming)問題。這就存(cun)在(zai)一個(ge)每次(ci)充(chong)電(dian)(dian)飽滿程度和(he)電(dian)(dian)池(chi)(chi)(chi)整個(ge)壽(shou)(shou)命(ming)的權衡問題。電(dian)(dian)池(chi)(chi)(chi)是有壽(shou)(shou)命(ming)限制的,最后會失去充(chong)電(dian)(dian)的能力(li)。長時(shi)間的充(chong)電(dian)(dian)會導(dao)致電(dian)(dian)池(chi)(chi)(chi)加速退(tui)化,最終(zhong)將毀掉電(dian)(dian)池(chi)(chi)(chi)。經過對電(dian)(dian)池(chi)(chi)(chi)的研究發現,充(chong)電(dian)(dian)時(shi)間的長短(duan)決定了(le)電(dian)(dian)池(chi)(chi)(chi)的壽(shou)(shou)命(ming)。
有(you)數據顯示(shi)iPad充(chong)電(dian)時(shi)的(de)溫度會(hui)達(da)到86F (30C)左右,但是飽和充(chong)電(dian)和60%充(chong)電(dian)是有(you)本質的(de)區別的(de)。如果充(chong)電(dian)保持在40%左右時(shi),電(dian)池(chi)每年(nian)將縮短(duan)4%的(de)壽命,而在每次充(chong)滿電(dian)的(de)情況(kuang)下(xia),電(dian)池(chi)每年(nian)將縮短(duan)20%的(de)壽命。
也許蘋果正式考慮了這個因素,為了保護電池的壽命,設置了電池充電器錯(cuo)誤的充電顯示信(xin)息,但(dan)這是(shi)無可(ke)厚(hou)非的。不(bu)管怎(zen)樣(yang),不(bu)要讓(rang)iPad充電太(tai)久。