手機電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)最常(chang)見的類型有(Li-ion)鋰(li)(li)離(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、鋰(li)(li)聚合(he)物超薄電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、NI-MH鎳氫離(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。不同(tong)類型電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)門限（標(biao)志(zhi)充(chong)滿/放(fang)盡(jin)的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)）不同(tong)，其中(zhong)鋰(li)(li)離(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)有3.7V/4.3V和(he)3.6V/4.2V之分。而市面上的“萬(wan)能(neng)手機充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器”據稱能(neng)較好地兼容(Li-on)鋰(li)(li)離(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。記者(zhe)采訪(fang)了一些業內人員。他們普遍對“萬(wan)能(neng)手機充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器”表示質(zhi)疑(yi)：“采用(yong)標(biao)準的恒(heng)流(liu)轉(zhuan)恒(heng)壓(ya)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)方式，不同(tong)容量(liang)的電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的額定充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不同(tong)，最大不超過1C （C是電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容量(liang)），難(nan)道500mAh和(he)1300mAh的電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)能(neng)用(yong)同(tong)樣的電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)電(dian)(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： 

質疑一(yi)： 仔細研究“萬能(neng)手(shou)機充(chong)電(dian)器(qi)”，我們發(fa)現它只(zhi)有(you)兩根輸出線(xian)(xian)，而(er)我們知(zhi)道(dao)設計完善的(de)電(dian)池充(chong)電(dian)器(qi)至(zhi)少有(you)三線(xian)(xian)輸出。電(dian)池中間的(de)兩根一(yi)般是數據反饋線(xian)(xian)和溫(wen)度及告警(jing)線(xian)(xian)，大部(bu)分鋰離子電(dian)池內部(bu)都有(you)保護電(dian)路(lu)甚(shen)至(zhi)是智能(neng)管理芯片。“只(zhi)有(you)兩根輸出線(xian)(xian)”意味著(zhu)該充(chong)電(dian)器(qi)放(fang)棄了電(dian)池本身(shen)具備的(de)保護電(dian)路(lu)。也只(zhi)有(you)這樣做(zuo)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(de)成本(ben)幾乎是兩者之(zhi)和。而市面(mian)的(de)蛋型充電器幾乎都是廉(lian)價的(de)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(xian)然，由于鋰離子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對(dui)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流敏感，過大充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流很容(rong)易導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)發熱發脹、活性(xing)物質脫落等問題，“萬能(neng)手(shou)(shou)(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)”不(bu)(bu)能(neng)對(dui)不(bu)(bu)同(tong)(tong)容(rong)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)提供不(bu)(bu)同(tong)(tong)的(de)(de)(de)和(he)適合(he)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流。那么安全性(xing)如何保障？鋰離子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對(dui)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流、尤其是(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)幾個門檻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓要(yao)求(qiu)很高(gao)，而目前幾乎(hu)所有(you)蛋充(chong)(chong)都未使(shi)用精密電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓源(yuan)（比如TL431或類(lei)似的(de)(de)(de)功能(neng)單元）而只是(shi)使(shi)用精度和(he)溫度穩定性(xing)都非常差(cha)的(de)(de)(de)廉價Zener管做參考(kao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓源(yuan)，導(dao)致門限(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓離散(san)性(xing)很大，飄(piao)移(yi)嚴重。為(wei)了避免意(yi)外(wai)，不(bu)(bu)少廠家有(you)意(yi)把門限(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓調(diao)小以保障即便(bian)出(chu)(chu)現比較大的(de)(de)(de)正誤差(cha)也不(bu)(bu)至出(chu)(chu)現問題，導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)長期充(chong)(chong)不(bu)(bu)飽。缺(que)乏(fa)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)量(liang)的(de)(de)(de)智能(neng)檢測是(shi)所謂“萬能(neng)手(shou)(shou)(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)”天生的(de)(de)(de)最致命缺(que)陷(xian)。 在采訪中，記(ji)者了解到充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)如果要(yao)實現“萬能(neng)”，必(bi)須具備以下特點： 1. 由于手(shou)(shou)(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)是(shi)直接(jie)使(shi)用220V的(de)(de)(de)，它(ta)必(bi)須包含手(shou)(shou)(shou)(shou)機(ji)直充(chong)(chong)（具備AC/DC轉(zhuan)換、并輸(shu)出(chu)(chu)穩定的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)足夠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流）或手(shou)(shou)(shou)(shou)機(ji)座充(chong)(chong)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管理電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路（充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓控(kong)制與管理及保護）的(de)(de)(de)功能(neng)。

2. 鋰離(li)子電(dian)池充電(dian)電(dian)流(liu)必(bi)須(xu)根(gen)據電(dian)池容量大小而定(ding)。電(dian)流(liu)過小導(dao)致充電(dian)時(shi)間(jian)大幅度延長，電(dian)流(liu)過大會導(dao)致電(dian)池內壓增加(jia)、發(fa)熱、結構受損，直(zhi)至危害電(dian)池壽命。

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. 萬能充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)在達到(dao)3.9V-4.34V（標準應該是(shi)(shi)4.2V）轉恒壓充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)數(shu)小時后，充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流并未(wei)完全關死而(er)存在較大(da)(da)漏電(dian)(dian)(dian)流。而(er)鋰離子電(dian)(dian)(dian)池(chi)(chi)對充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流的(de)(de)(de)(de)吸(xi)收是(shi)(shi)100%的(de)(de)(de)(de)，即便是(shi)(shi)很(hen)小的(de)(de)(de)(de)電(dian)(dian)(dian)流依(yi)然也存在過充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)問題。 5. 所有原裝充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)，除了(le)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)的(de)(de)(de)(de)正負兩極，還(huan)有與電(dian)(dian)(dian)池(chi)(chi)內(nei)部(bu)保護(hu)電(dian)(dian)(dian)路進(jin)行連(lian)接的(de)(de)(de)(de)線(xian)路，以獲取電(dian)(dian)(dian)池(chi)(chi)容量、溫(wen)度補償參數(shu)、告警保護(hu)等(deng)信息。而(er)由于廠家品(pin)牌不(bu)同，電(dian)(dian)(dian)池(chi)(chi)/手(shou)機(ji)保護(hu)電(dian)(dian)(dian)路的(de)(de)(de)(de)電(dian)(dian)(dian)路方式(shi)有很(hen)大(da)(da)差別。所以，現階段真正達到(dao)兼容幾乎是(shi)(shi)不(bu)可(ke)能的(de)(de)(de)(de)。 可(ke)想(xiang)而(er)知，此(ci)類成本低于10元(yuan)的(de)(de)(de)(de)“萬能手(shou)機(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)”安全性能有多好？ 希(xi)望各位讀者(zhe)在選購的(de)(de)(de)(de)過程中，注意劣質產品(pin)帶來(lai)的(de)(de)(de)(de)危害(hai)，為愛機(ji)配上一個安全、實用(yong)的(de)(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)。