手機(ji)(ji)電(dian)(dian)(dian)(dian)(dian)池最常(chang)見的(de)(de)類(lei)(lei)型有(you)(Li-ion)鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池、鋰(li)聚合(he)物超(chao)(chao)薄(bo)電(dian)(dian)(dian)(dian)(dian)池、NI-MH鎳氫(qing)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池。不(bu)同(tong)(tong)類(lei)(lei)型電(dian)(dian)(dian)(dian)(dian)池的(de)(de)電(dian)(dian)(dian)(dian)(dian)池門限（標志充(chong)(chong)滿/放盡的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓）不(bu)同(tong)(tong)，其中鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池有(you)3.7V/4.3V和(he)(he)3.6V/4.2V之分。而市(shi)面上的(de)(de)“萬能手機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器”據稱能較好地兼容(rong)(Li-on)鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池。記者采(cai)訪了一些業內人員。他們普遍(bian)對“萬能手機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器”表示質疑：“采(cai)用(yong)標準的(de)(de)恒(heng)流轉恒(heng)壓充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)方式，不(bu)同(tong)(tong)容(rong)量(liang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)池的(de)(de)額(e)定充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流不(bu)同(tong)(tong)，最大不(bu)超(chao)(chao)過1C （C是電(dian)(dian)(dian)(dian)(dian)池容(rong)量(liang)），難(nan)道500mAh和(he)(he)1300mAh的(de)(de)電(dian)(dian)(dian)(dian)(dian)池能用(yong)同(tong)(tong)樣的(de)(de)電(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)？”

    當然，目前已經有更先進的快速充電方式（比如-DV/DT），具有良好的兼容性。但是要想生產出合格的產品必須采用專門的運算芯片和檢測電路，這樣的產品綜合成本沒100元別想拿下。那些賣幾十元（實際成本恐怕不到10元）的“萬能手機充電器”采用了什么新技術能自動根據不同的電池提供適合的電流和適合的門限電壓，從而達到萬能的功效呢？實在是讓人可疑！!
三大(da)質疑： 

質疑(yi)一： 仔細(xi)研究“萬能(neng)手機充(chong)電(dian)器(qi)”，我們(men)(men)發現它(ta)只(zhi)有(you)(you)兩根輸(shu)(shu)出(chu)線(xian)，而我們(men)(men)知道設計完善的(de)電(dian)池充(chong)電(dian)器(qi)至(zhi)少有(you)(you)三線(xian)輸(shu)(shu)出(chu)。電(dian)池中間的(de)兩根一般是數據反饋線(xian)和溫度及告警線(xian)，大(da)部分鋰離子(zi)電(dian)池內部都有(you)(you)保(bao)護電(dian)路甚至(zhi)是智(zhi)能(neng)管理芯(xin)片。“只(zhi)有(you)(you)兩根輸(shu)(shu)出(chu)線(xian)”意(yi)味著該充(chong)電(dian)器(qi)放棄了電(dian)池本身具(ju)備的(de)保(bao)護電(dian)路。也只(zhi)有(you)(you)這(zhe)樣做才能(neng)實(shi)現“廉價的(de)萬能(neng)”。

質疑二：“許多制作精度不高的充電器都采用調低截止電壓的方式（正常截止電壓是4.2V） 。它們把門限正態分布值設置為4V左右。這樣做使充電本身安全了，但電池卻永遠充不滿。等于電池容量減少了，導致充電次數的增加，也導致了電池壽命的縮短。 
鋰離子電池非常嬌氣和敏感。鋰離子電池充電吸收效率幾乎是100%，無論是大電流過充電或者小電流夠充都能導致電池失效。所以電池門限控制可以說是充電控制的關鍵！;最佳的充電方法是直充充電器對手機進行關機充電――直充提供恒定直流電壓，再經手機內帶有精密參考電壓源、同時受軟件控制的帶溫度補償功能和數據交換功能的可編程超大規模手機電源芯片對電池進行充電，可以達到幾乎理想的效果。許多手機在軟件工程模式下還能精密調節電壓參數，精度達到0.01V。這些都是座充等其他充電方式不容易做到的，完善的蛋型充電器應包含直充的隔離、AC/DC轉換及穩壓，和座充的充電監控等所有功能。所以，這樣的蛋型充電器的成(cheng)本幾乎(hu)是兩者之和(he)。而市面(mian)的蛋型充電器幾乎(hu)都是廉價的垃圾！”

質疑三：現在越來越多的消費者已經認識到了手機12～16小時初充電的說法不正確，這種說法是沿用以前老鎳類電池的模式。對于鋰離子電池根本不需要，甚至有害！這是因為鋰離子優點很多，但也有一個最致命缺點――非常脆弱！所以，幾乎所有的鋰離子里有安裝防止過充過放的保護電路（粗保護，更精確的保護由用電設備的電池管理電路實現）。另外，鋰離子電芯生產完成后就已經有電，不存在激活問題。為了減少電芯存放時間長而引起的容量下降，一般建議首次使用或長期存放后首次使用，采用深度放電再充滿的方式。充滿是指燈變色后多充電20～50%的時間。對于鋰離子電池，寧欠也勿飽。欠，可能導致單次輸入容量下降，過飽卻可能導致不可恢復的硬傷。
    顯然，由(you)于鋰離子電(dian)(dian)(dian)(dian)池(chi)對(dui)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)敏感，過大充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)很容(rong)易導(dao)致電(dian)(dian)(dian)(dian)池(chi)發(fa)熱發(fa)脹、活性(xing)物質(zhi)脫落等問題，“萬能(neng)(neng)手機充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)”不(bu)能(neng)(neng)對(dui)不(bu)同容(rong)量電(dian)(dian)(dian)(dian)池(chi)提供不(bu)同的(de)和(he)適合(he)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)。那么安全性(xing)如(ru)何保障(zhang)(zhang)？鋰離子電(dian)(dian)(dian)(dian)池(chi)對(dui)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)、尤其是充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)的(de)幾個門檻(jian)電(dian)(dian)(dian)(dian)壓(ya)要(yao)求很高(gao)，而目前幾乎所有蛋(dan)充(chong)(chong)(chong)都(dou)(dou)未使(shi)用精密電(dian)(dian)(dian)(dian)壓(ya)源(yuan)（比如(ru)TL431或(huo)類似(si)的(de)功能(neng)(neng)單元）而只是使(shi)用精度(du)和(he)溫度(du)穩定(ding)性(xing)都(dou)(dou)非(fei)常差的(de)廉(lian)價Zener管(guan)做(zuo)參考電(dian)(dian)(dian)(dian)壓(ya)源(yuan)，導(dao)致門限(xian)電(dian)(dian)(dian)(dian)壓(ya)離散性(xing)很大，飄移嚴(yan)重。為了避免意(yi)外，不(bu)少廠(chang)家有意(yi)把門限(xian)電(dian)(dian)(dian)(dian)壓(ya)調小以(yi)保障(zhang)(zhang)即(ji)便(bian)出現(xian)(xian)比較(jiao)大的(de)正誤(wu)差也(ye)不(bu)至(zhi)出現(xian)(xian)問題，導(dao)致電(dian)(dian)(dian)(dian)池(chi)長期充(chong)(chong)(chong)不(bu)飽。缺乏(fa)對(dui)電(dian)(dian)(dian)(dian)池(chi)容(rong)量的(de)智能(neng)(neng)檢測是所謂(wei)“萬能(neng)(neng)手機充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)”天生的(de)最致命缺陷。 在采訪中，記者了解到充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)如(ru)果要(yao)實現(xian)(xian)“萬能(neng)(neng)”，必須具備以(yi)下特點： 1. 由(you)于手機充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)是直接(jie)使(shi)用220V的(de)，它(ta)必須包含手機直充(chong)(chong)(chong)（具備AC/DC轉換、并(bing)輸出穩定(ding)的(de)電(dian)(dian)(dian)(dian)壓(ya)和(he)足夠的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)）或(huo)手機座充(chong)(chong)(chong)的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)管(guan)理電(dian)(dian)(dian)(dian)路（充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)壓(ya)控制與管(guan)理及保護）的(de)功能(neng)(neng)。

2. 鋰離子電池(chi)(chi)充電電流必須根據電池(chi)(chi)容(rong)量大(da)小而定。電流過(guo)小導(dao)致充電時間大(da)幅度延長，電流過(guo)大(da)會(hui)導(dao)致電池(chi)(chi)內壓(ya)增加(jia)、發熱、結構受損，直至(zhi)危害電池(chi)(chi)壽命。

3. 鋰離子電池是非常非常嬌氣的，準確和穩定的門檻電壓控制對電池壽命有很大影響。該款電池充電器并未采用足夠精度的電壓參考源電路，而且由于設計功率余量不足，充電器本身容易發熱，導致門檻電壓產生溫飄，影響充電控制精度。
4. 萬能(neng)(neng)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)在達到3.9V-4.34V（標準(zhun)應(ying)該是4.2V）轉(zhuan)恒壓充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)數小(xiao)時后，充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流并(bing)未完(wan)全(quan)關死而存(cun)在較大(da)漏電(dian)(dian)(dian)(dian)(dian)(dian)流。而鋰離子電(dian)(dian)(dian)(dian)(dian)(dian)池對充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)吸收是100%的(de)(de)，即便是很(hen)小(xiao)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流依(yi)然也存(cun)在過(guo)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)問題。 5. 所(suo)(suo)有(you)原裝充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)，除(chu)了充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)正(zheng)負兩極(ji)，還有(you)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)池內部保護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)路進行(xing)連接(jie)的(de)(de)線路，以獲取電(dian)(dian)(dian)(dian)(dian)(dian)池容(rong)量、溫(wen)度(du)補償參(can)數、告警保護(hu)(hu)等信息(xi)。而由于廠家品(pin)牌不(bu)同，電(dian)(dian)(dian)(dian)(dian)(dian)池/手機保護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路方式有(you)很(hen)大(da)差(cha)別。所(suo)(suo)以，現階段真正(zheng)達到兼容(rong)幾乎(hu)是不(bu)可(ke)(ke)能(neng)(neng)的(de)(de)。 可(ke)(ke)想而知，此類(lei)成本低于10元的(de)(de)“萬能(neng)(neng)手機充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)”安(an)全(quan)性能(neng)(neng)有(you)多(duo)好？ 希望各位讀(du)者在選購的(de)(de)過(guo)程中，注意劣(lie)質產品(pin)帶來的(de)(de)危(wei)害，為愛機配上一個安(an)全(quan)、實(shi)用的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)。