不知道各位有沒有這樣的經歷，100%的電池電量用上幾分鐘就掉到90%左右了，如果經常刷機，還會碰到極端情況：電量到20%時直接降到5%，并提示“電量不足，即將關機”。這個情況有時候做電池校正就可以恢復正常。

以下是引用并(bing)整理(li)的資料，僅供參(can)考。

1）關(guan)機(ji)(ji)，插上電(dian)(dian)源充(chong)電(dian)(dian)直到充(chong)滿。（最好能(neng)連(lian)續(xu)充(chong)一夜以保證最大(da)電(dian)(dian)量。切(qie)記在(zai)充(chong)滿電(dian)(dian)之前手機(ji)(ji)不要開(kai)機(ji)(ji)。）

2）不拔電(dian)源(yuan)的前提下，開機(ji)。

3）進系(xi)統之后(hou)用終端(duan)、Root Explorer或其他同類工具刪(shan)除/data/system/batterystats.bin這個文件。

4）拔下電源，正常使用(yong)手機直到其自動關機。此(ci)時電池仍(reng)然有余電，在等待一(yi)至兩分鐘后再次(ci)開機，把(ba)剩余電量用(yong)完。（如(ru)果你想加快(kuai)這個過程的話，用(yong)任何一(yi)種費電的方式把(ba)電耗(hao)完當然也(ye)可以）

5）此時(shi)手機(ji)已經重(zhong)新獲取了當前(qian)電(dian)池的電(dian)量信(xin)息。此時(shi)在關機(ji)狀態下(xia)重(zhong)新充滿電(dian)即可開始正常(chang)使用。

補(bu)充說明：

1）/data/system/batterystats.bin這(zhe)個文件是(shi)系統(tong)記錄(lu)的包(bao)括電壓在內(nei)的各(ge)種電池(chi)信(xin)息，刪(shan)除這(zhe)個文件之后系統(tong)會(hui)重新開始統(tong)計(ji)電池(chi)的使(shi)用信(xin)息。

2）Recovery中的”Wipe battery status”做的工作就是刪除(chu)/data/system/batterystats.bin這個(ge)文件。

3）之所以在Android系統(tong)中刪(shan)除(chu)這個(ge)文(wen)件(jian)而不(bu)是(shi)Recovery中選擇”Wipe battery status”，是(shi)因(yin)為(wei)(wei)Recovery狀態下(xia)的(de)充(chong)(chong)電指示燈不(bu)亮(liang)，我認為(wei)(wei)此時(shi)并(bing)不(bu)是(shi)處于充(chong)(chong)電狀態（關于這點如有錯誤(wu)還請各位朋友指正）。因(yin)為(wei)(wei)進Recovery時(shi)需要耗(hao)一點電，如果(guo)在電量未滿的(de)情況下(xia)刪(shan)除(chu)電池信息文(wen)件(jian)會影響復位效(xiao)果(guo)。

手機電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)種類比較多，常用的(de)(de)有鋰(li)離子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)和鎳氫(qing)電(dian)(dian)(dian)池(chi)(chi)(chi)等。鋰(li)離子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)和鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)是(shi)(shi)不同的(de)(de)概念，通(tong)常我們說的(de)(de)鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)其(qi)實指的(de)(de)是(shi)(shi)鋰(li)離子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)。鋰(li)離子(zi)常被簡稱(cheng)為(wei)鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)，但其(qi)實鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)和鋰(li)離子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)是(shi)(shi)兩(liang)個不同概念，這(zhe)(zhe)里不去研(yan)究他們的(de)(de)不同，一(yi)律統(tong)稱(cheng)鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)。人們常常認為(wei)鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)是(shi)(shi)沒有記(ji)(ji)憶效應(ying)的(de)(de)，這(zhe)(zhe)是(shi)(shi)廠商的(de)(de)誤(wu)導。鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)仍然有記(ji)(ji)憶，只是(shi)(shi)遠比鎳氫(qing)電(dian)(dian)(dian)池(chi)(chi)(chi)輕(qing)微而已。如果(guo)長期(qi)采用沒事(shi)兒就充電(dian)(dian)(dian)的(de)(de)方法，鋰(li)電(dian)(dian)(dian)池(chi)(chi)(chi)也會出現(xian)嚴重(zhong)的(de)(de)記(ji)(ji)憶效應(ying)（所謂(wei)記(ji)(ji)憶效應(ying)，就是(shi)(shi)電(dian)(dian)(dian)池(chi)(chi)(chi)儲存的(de)(de)電(dian)(dian)(dian)量越來越難以釋放放出來，對外表現(xian)就是(shi)(shi)充滿電(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)使用時(shi)間越來越短）。

即使按(an)最科學的方法使用(yong)鋰電(dian)(dian)(dian)池(chi)(chi)，鋰離(li)子(zi)仍然會(hui)隨著時(shi)間的增長而(er)出(chu)現記憶效應。這主要(yao)(yao)是由(you)于氧化(hua)引起(qi)的內部電(dian)(dian)(dian)阻(zu)增加，當電(dian)(dian)(dian)解槽電(dian)(dian)(dian)阻(zu)達到某個(ge)值(zhi)，盡(jin)管這時(shi)電(dian)(dian)(dian)池(chi)(chi)充(chong)滿了電(dian)(dian)(dian)，但電(dian)(dian)(dian)池(chi)(chi)卻不能釋放已儲存的電(dian)(dian)(dian)量引起(qi)。而(er)且最重要(yao)(yao)是鋰離(li)子(zi)電(dian)(dian)(dian)池(chi)(chi)也有使用(yong)壽(shou)命，鋰離(li)子(zi)電(dian)(dian)(dian)池(chi)(chi)一(yi)般能夠充(chong)放300－500次，一(yi)旦電(dian)(dian)(dian)池(chi)(chi)下(xia)了生產線，時(shi)鐘就(jiu)開始走(zou)動(dong)。不管你是否使用(yong)，鋰電(dian)(dian)(dian)池(chi)(chi)的使用(yong)壽(shou)命都(dou)只有兩到三年，之后雖然還(huan)能使用(yong)，但已經很(hen)難令人滿意(yi)。

電(dian)(dian)池電(dian)(dian)量的(de)顯(xian)示無法(fa)非常的(de)精(jing)確(que)，由(you)于充放電(dian)(dian)曲線(xian)也(ye)不是絕(jue)對平滑(hua)的(de)，在毫少(shao)級下其(qi)實表現(xian)為不規則(ze)的(de)震(zhen)蕩波，所(suo)以為了更準確(que)的(de)反應電(dian)(dian)池電(dian)(dian)量，一般會設置(zhi)一個計數器(qi)，讓(rang)放電(dian)(dian)或(huo)者(zhe)充電(dian)(dian)過程(cheng)中電(dian)(dian)壓多次超(chao)過或(huo)者(zhe)低于某(mou)個值(zhi)，才(cai)會認定電(dian)(dian)壓達到某(mou)個值(zhi)。

鋰電(dian)(dian)(dian)(dian)池(chi)(chi)放電(dian)(dian)(dian)(dian)需(xu)要注(zhu)意幾(ji)點：第一，放電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流不能過(guo)大，過(guo)大的電(dian)(dian)(dian)(dian)流導致(zhi)電(dian)(dian)(dian)(dian)池(chi)(chi)內部(bu)(bu)發(fa)熱，有可(ke)能會(hui)造(zao)成永久性的損害(hai)。在(zai)(zai)手(shou)(shou)機(ji)上，這個倒是(shi)沒有問題的，可(ke)以不考慮。第二(er)，絕對不能過(guo)放電(dian)(dian)(dian)(dian)！鋰電(dian)(dian)(dian)(dian)池(chi)(chi)最怕過(guo)放電(dian)(dian)(dian)(dian)，一旦(dan)放電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)低于2.7V，將可(ke)能導致(zhi)電(dian)(dian)(dian)(dian)池(chi)(chi)報廢。好在(zai)(zai)手(shou)(shou)機(ji)電(dian)(dian)(dian)(dian)池(chi)(chi)內部(bu)(bu)都(dou)已經裝了保(bao)護(hu)電(dian)(dian)(dian)(dian)路，電(dian)(dian)(dian)(dian)壓(ya)還沒低到損壞電(dian)(dian)(dian)(dian)池(chi)(chi)的程(cheng)度，保(bao)護(hu)電(dian)(dian)(dian)(dian)路就會(hui)起作(zuo)用，停(ting)止放電(dian)(dian)(dian)(dian)。

鋰(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的(de)(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)方式(shi)是限壓橫流(liu)方式(shi)。充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)開始時(shi)，應先檢測待充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，如(ru)果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓低(di)于3V，要先進(jin)(jin)行預充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為設(she)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)1/10，一(yi)(yi)(yi)般(ban)(ban)選0.05C左右（C一(yi)(yi)(yi)般(ban)(ban)用作充(chong)(chong)(chong)(chong)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)作參(can)照，C是對(dui)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池容量(liang)的(de)(de)數(shu)值(zhi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池容量(liang)一(yi)(yi)(yi)般(ban)(ban)用Ah、mAh表示，如(ru)M8的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池容量(liang)1200mAh，對(dui)應的(de)(de)C就(jiu)(jiu)是1200mA。0.2C就(jiu)(jiu)等(deng)于240mA。）。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓升到3V后，進(jin)(jin)入標準充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)。標準充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)為：以設(she)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)進(jin)(jin)行恒(heng)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓升到4.20V時(shi)，改為恒(heng)壓充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，保持充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓為4.20V。此時(shi)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)逐(zhu)漸下降(jiang)，當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)下降(jiang)至設(she)定(ding)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)1/10時(shi)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)結束。一(yi)(yi)(yi)般(ban)(ban)鋰(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)設(she)定(ding)在0.2C至1C之(zhi)間(jian)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)越(yue)大，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)越(yue)快(kuai)，同(tong)時(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池發(fa)熱(re)也越(yue)大。而(er)且，過(guo)大的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，容量(liang)不夠滿(man)(man)，因為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池內部的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化學反應需要時(shi)間(jian)。就(jiu)(jiu)跟倒(dao)啤(pi)酒一(yi)(yi)(yi)樣，倒(dao)太快(kuai)的(de)(de)話會(hui)產生泡沫，反而(er)不滿(man)(man)

基于以(yi)上各(ge)種各(ge)樣的(de)(de)原(yuan)因(yin)，使(shi)電(dian)(dian)(dian)池(chi)管(guan)(guan)理(li)程序變(bian)得(de)十分難以(yi)準確，可以(yi)考慮使(shi)用智能電(dian)(dian)(dian)池(chi)管(guan)(guan)理(li)。使(shi)用電(dian)(dian)(dian)池(chi)校正(zheng)(zheng)程序，自主校正(zheng)(zheng)參數，寫(xie)入(ru)NV，供電(dian)(dian)(dian)源(yuan)管(guan)(guan)理(li)程序調用。具體原(yuan)理(li)就(jiu)是在一次充滿(man)電(dian)(dian)(dian)放電(dian)(dian)(dian)過程中，記錄下每次電(dian)(dian)(dian)壓下降0.01V所消耗的(de)(de)時間(jian)。最(zui)后(hou)把(ba)這些時間(jian)合起來(lai)，根據(ju)電(dian)(dian)(dian)池(chi)格(ge)數計算每格(ge)電(dian)(dian)(dian)需(xu)(xu)要(yao)的(de)(de)理(li)論時間(jian)，最(zui)后(hou)通過時間(jian)來(lai)計算各(ge)格(ge)電(dian)(dian)(dian)需(xu)(xu)要(yao)的(de)(de)達(da)到的(de)(de)電(dian)(dian)(dian)壓，并把(ba)結果寫(xie)入(ru)NV做為(wei)電(dian)(dian)(dian)池(chi)管(guan)(guan)理(li)的(de)(de)依據(ju)。為(wei)了達(da)到近似的(de)(de)精確，許多時候我(wo)們需(xu)(xu)要(yao)在一定周期內重(zhong)新校正(zheng)(zheng)，并且可以(yi)根據(ju)電(dian)(dian)(dian)池(chi)測試結果提(ti)示用戶淘(tao)汰舊的(de)(de)電(dian)(dian)(dian)池(chi)，使(shi)用新的(de)(de)電(dian)(dian)(dian)池(chi)。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)(nao)的(de)bios中會(hui)記(ji)(ji)載鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流的(de)信(xin)息(xi)，bios通過(guo)這些信(xin)息(xi)提(ti)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)工作情況和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)用(yong)(yong)久了以后，參數(shu)發生一(yi)些變化，會(hui)造成系(xi)統誤(wu)判電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量，一(yi)般(ban)是(shi)提(ti)前提(ti)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量不(bu)足。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)校準(zhun)主要(yao)是(shi)幫助計算(suan)機(ji)系(xi)統準(zhun)確判別電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)信(xin)息(xi)，避免誤(wu)判。對于多(duo)數(shu)長期使(shi)用(yong)(yong)的(de)筆記(ji)(ji)本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)(nao)是(shi)有效果(guo)的(de)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)校準(zhun)一(yi)般(ban)半年多(duo)一(yi)次為宜。手機(ji)和ipad電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量計算(suan)方式與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)(nao)不(bu)同，所以不(bu)會(hui)有太(tai)好的(de)效果(guo).