手機(ji)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)最常(chang)見的(de)(de)類型有(you)(Li-ion)鋰(li)離子(zi)(zi)(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)、鋰(li)聚合物超薄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)、NI-MH鎳氫離子(zi)(zi)(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)。不(bu)同(tong)(tong)類型電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)門(men)限（標志充(chong)(chong)滿/放盡的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)）不(bu)同(tong)(tong)，其中鋰(li)離子(zi)(zi)(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)有(you)3.7V/4.3V和(he)3.6V/4.2V之分。而市(shi)面上的(de)(de)“萬(wan)能(neng)(neng)手機(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)”據稱能(neng)(neng)較(jiao)好地兼(jian)容(Li-on)鋰(li)離子(zi)(zi)(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)。記者采(cai)訪了一些業(ye)內人員。他們普遍對“萬(wan)能(neng)(neng)手機(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)”表示質疑：“采(cai)用(yong)標準的(de)(de)恒(heng)流轉(zhuan)恒(heng)壓(ya)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)方式，不(bu)同(tong)(tong)容量的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)額定充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流不(bu)同(tong)(tong)，最大不(bu)超過1C （C是電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)容量），難道500mAh和(he)1300mAh的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)能(neng)(neng)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(san)大質疑： 

質(zhi)疑(yi)一： 仔細(xi)研究(jiu)“萬能手機充電(dian)器”，我們(men)發現(xian)它只(zhi)有兩(liang)(liang)根(gen)輸出線(xian)，而我們(men)知(zhi)道設(she)計完善的電(dian)池充電(dian)器至少有三線(xian)輸出。電(dian)池中間(jian)的兩(liang)(liang)根(gen)一般(ban)是(shi)數據(ju)反(fan)饋線(xian)和溫度(du)及告警線(xian)，大部(bu)分(fen)鋰離子電(dian)池內(nei)部(bu)都(dou)有保護電(dian)路甚(shen)至是(shi)智能管理(li)芯片。“只(zhi)有兩(liang)(liang)根(gen)輸出線(xian)”意(yi)味(wei)著該充電(dian)器放棄了電(dian)池本(ben)身(shen)具備的保護電(dian)路。也只(zhi)有這樣做才能實(shi)現(xian)“廉價(jia)的萬能”。

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本幾乎(hu)是兩者之和。而市(shi)面的蛋型充電器幾乎(hu)都是廉價的垃(la)圾(ji)！”

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(ran)，由(you)于鋰離(li)子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對(dui)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)敏感(gan)，過大(da)(da)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)很(hen)容易導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)發熱發脹、活性(xing)物質脫落等問(wen)題，“萬(wan)能(neng)手(shou)機(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)”不(bu)能(neng)對(dui)不(bu)同容量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)提供不(bu)同的(de)(de)(de)(de)和適(shi)合的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。那么安(an)全性(xing)如何保(bao)障？鋰離(li)子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對(dui)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、尤其(qi)是充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)幾個門(men)檻(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)要求很(hen)高，而目前幾乎(hu)所有蛋充(chong)(chong)(chong)(chong)(chong)都(dou)未使用精密(mi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)源（比如TL431或類似的(de)(de)(de)(de)功(gong)能(neng)單元）而只是使用精度和溫度穩(wen)定性(xing)都(dou)非常差的(de)(de)(de)(de)廉(lian)價Zener管(guan)(guan)做(zuo)參(can)考電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)源，導致(zhi)門(men)限(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)離(li)散性(xing)很(hen)大(da)(da)，飄移(yi)嚴重。為了避免意外，不(bu)少廠(chang)家有意把門(men)限(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)調小以保(bao)障即便出(chu)現比較(jiao)大(da)(da)的(de)(de)(de)(de)正誤差也不(bu)至出(chu)現問(wen)題，導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)長期充(chong)(chong)(chong)(chong)(chong)不(bu)飽。缺(que)(que)乏(fa)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容量(liang)的(de)(de)(de)(de)智能(neng)檢測是所謂“萬(wan)能(neng)手(shou)機(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)”天生的(de)(de)(de)(de)最致(zhi)命(ming)缺(que)(que)陷。 在采訪中(zhong)，記(ji)者了解到充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)如果要實現“萬(wan)能(neng)”，必(bi)(bi)須具備以下特點： 1. 由(you)于手(shou)機(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)是直(zhi)接使用220V的(de)(de)(de)(de)，它必(bi)(bi)須包含手(shou)機(ji)直(zhi)充(chong)(chong)(chong)(chong)(chong)（具備AC/DC轉換、并輸出(chu)穩(wen)定的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和足夠的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)）或手(shou)機(ji)座(zuo)充(chong)(chong)(chong)(chong)(chong)的(de)(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管(guan)(guan)理電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路（充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)控(kong)制與管(guan)(guan)理及保(bao)護）的(de)(de)(de)(de)功(gong)能(neng)。

2. 鋰離子(zi)電(dian)(dian)池(chi)(chi)充電(dian)(dian)電(dian)(dian)流必須根據電(dian)(dian)池(chi)(chi)容量大(da)小而定。電(dian)(dian)流過(guo)小導致充電(dian)(dian)時間(jian)大(da)幅度延(yan)長，電(dian)(dian)流過(guo)大(da)會導致電(dian)(dian)池(chi)(chi)內(nei)壓增加、發(fa)熱、結構受損，直至(zhi)危害(hai)電(dian)(dian)池(chi)(chi)壽(shou)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(wan)能充電(dian)(dian)器在達到3.9V-4.34V（標準應(ying)該(gai)是(shi)4.2V）轉恒壓充電(dian)(dian)數(shu)小時后，充電(dian)(dian)電(dian)(dian)流并未完全關(guan)死而(er)存在較大(da)漏(lou)電(dian)(dian)流。而(er)鋰離(li)子電(dian)(dian)池對充電(dian)(dian)電(dian)(dian)流的(de)(de)吸收是(shi)100%的(de)(de)，即(ji)便是(shi)很(hen)小的(de)(de)電(dian)(dian)流依然也存在過充電(dian)(dian)問題。 5. 所有原裝充電(dian)(dian)器，除了充電(dian)(dian)的(de)(de)正負兩(liang)極，還(huan)有與電(dian)(dian)池內部保(bao)護(hu)電(dian)(dian)路進(jin)行連接的(de)(de)線路，以獲取(qu)電(dian)(dian)池容(rong)量(liang)、溫度補償參(can)數(shu)、告警保(bao)護(hu)等信(xin)息(xi)。而(er)由于廠家品牌不(bu)同，電(dian)(dian)池/手機保(bao)護(hu)電(dian)(dian)路的(de)(de)電(dian)(dian)路方式有很(hen)大(da)差別。所以，現階段真正達到兼容(rong)幾乎(hu)是(shi)不(bu)可(ke)能的(de)(de)。 可(ke)想而(er)知，此類(lei)成本低(di)于10元的(de)(de)“萬(wan)能手機充電(dian)(dian)器”安全性(xing)能有多(duo)好？ 希望各(ge)位讀者在選購的(de)(de)過程中(zhong)，注意劣(lie)質產品帶來的(de)(de)危害，為(wei)愛機配(pei)上一(yi)個安全、實用的(de)(de)充電(dian)(dian)器。