手機電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)最常見(jian)的(de)(de)(de)類型有(Li-ion)鋰(li)(li)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、鋰(li)(li)聚合物超薄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)、NI-MH鎳氫(qing)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。不(bu)(bu)同類型電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)門限（標志充(chong)滿/放盡的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓）不(bu)(bu)同，其中鋰(li)(li)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)有3.7V/4.3V和(he)3.6V/4.2V之分。而市面(mian)上的(de)(de)(de)“萬能手機充(chong)電(dian)(dian)(dian)(dian)(dian)器”據稱能較(jiao)好地兼容(rong)(Li-on)鋰(li)(li)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。記(ji)者采(cai)訪了一些業內人員。他們普(pu)遍對“萬能手機充(chong)電(dian)(dian)(dian)(dian)(dian)器”表示(shi)質疑：“采(cai)用(yong)(yong)標準的(de)(de)(de)恒(heng)(heng)流(liu)轉(zhuan)恒(heng)(heng)壓充(chong)電(dian)(dian)(dian)(dian)(dian)方式，不(bu)(bu)同容(rong)量的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)額定(ding)充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)不(bu)(bu)同，最大不(bu)(bu)超過1C （C是(shi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)量），難道500mAh和(he)1300mAh的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)能用(yong)(yong)同樣的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)充(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！!
三大質疑： 

質疑一： 仔(zi)細研究“萬能手機充(chong)電(dian)(dian)器(qi)(qi)”，我們發現它只(zhi)有兩(liang)根輸出(chu)線，而我們知(zhi)道(dao)設計完善的(de)電(dian)(dian)池(chi)充(chong)電(dian)(dian)器(qi)(qi)至(zhi)少(shao)有三(san)線輸出(chu)。電(dian)(dian)池(chi)中間的(de)兩(liang)根一般(ban)是(shi)數據(ju)反(fan)饋(kui)線和溫度及(ji)告警線，大部分鋰離子電(dian)(dian)池(chi)內部都有保護電(dian)(dian)路甚至(zhi)是(shi)智能管理芯片。“只(zhi)有兩(liang)根輸出(chu)線”意味(wei)著(zhu)該充(chong)電(dian)(dian)器(qi)(qi)放棄(qi)了(le)電(dian)(dian)池(chi)本(ben)身具備(bei)的(de)保護電(dian)(dian)路。也只(zhi)有這樣做才能實現“廉價的(de)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(de)成本(ben)幾(ji)乎是(shi)(shi)兩者之和。而市面的(de)蛋型充電器幾(ji)乎都(dou)是(shi)(shi)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。
    顯然，由(you)于鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)敏感，過(guo)大充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)很容(rong)易(yi)導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)發(fa)熱發(fa)脹、活性(xing)物質脫落等問題，“萬(wan)能(neng)手機(ji)(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)”不(bu)(bu)能(neng)對不(bu)(bu)同(tong)容(rong)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)提供(gong)不(bu)(bu)同(tong)的(de)(de)(de)和適合的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。那(nei)么安全性(xing)如何保障？鋰(li)離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)對充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、尤(you)其是充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)幾個門(men)(men)檻電(dian)(dian)(dian)(dian)(dian)(dian)壓要求很高，而目前幾乎所(suo)有(you)蛋充(chong)(chong)(chong)(chong)(chong)都未使用(yong)精密電(dian)(dian)(dian)(dian)(dian)(dian)壓源（比(bi)如TL431或類似的(de)(de)(de)功能(neng)單元）而只(zhi)是使用(yong)精度(du)和溫度(du)穩定性(xing)都非常差(cha)的(de)(de)(de)廉價Zener管(guan)做參(can)考電(dian)(dian)(dian)(dian)(dian)(dian)壓源，導致(zhi)門(men)(men)限電(dian)(dian)(dian)(dian)(dian)(dian)壓離(li)散性(xing)很大，飄移嚴重(zhong)。為了避免(mian)意(yi)外(wai)，不(bu)(bu)少廠家有(you)意(yi)把門(men)(men)限電(dian)(dian)(dian)(dian)(dian)(dian)壓調(diao)小以保障即便出現比(bi)較大的(de)(de)(de)正誤差(cha)也不(bu)(bu)至出現問題，導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)長期充(chong)(chong)(chong)(chong)(chong)不(bu)(bu)飽。缺乏對電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)量(liang)的(de)(de)(de)智能(neng)檢測是所(suo)謂(wei)“萬(wan)能(neng)手機(ji)(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)”天生的(de)(de)(de)最致(zhi)命(ming)缺陷。 在采訪(fang)中(zhong)，記(ji)者了解(jie)到(dao)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)如果要實現“萬(wan)能(neng)”，必須具備(bei)以下特(te)點： 1. 由(you)于手機(ji)(ji)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)是直接使用(yong)220V的(de)(de)(de)，它必須包含手機(ji)(ji)直充(chong)(chong)(chong)(chong)(chong)（具備(bei)AC/DC轉換、并輸出穩定的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓和足夠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)）或手機(ji)(ji)座充(chong)(chong)(chong)(chong)(chong)的(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)管(guan)理電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)（充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)壓控制與管(guan)理及保護）的(de)(de)(de)功能(neng)。

2. 鋰離子(zi)電(dian)(dian)池(chi)充電(dian)(dian)電(dian)(dian)流必須根據電(dian)(dian)池(chi)容(rong)量大(da)小(xiao)而定(ding)。電(dian)(dian)流過(guo)小(xiao)導致充電(dian)(dian)時間大(da)幅度延長(chang)，電(dian)(dian)流過(guo)大(da)會導致電(dian)(dian)池(chi)內壓(ya)增加、發熱、結構受(shou)損，直至(zhi)危害電(dian)(dian)池(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(wan)能(neng)(neng)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器在(zai)達(da)到3.9V-4.34V（標準(zhun)應(ying)該是4.2V）轉恒(heng)壓充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)數小時后，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流并未完全關死而(er)存在(zai)較大漏(lou)電(dian)(dian)(dian)(dian)(dian)流。而(er)鋰(li)離子電(dian)(dian)(dian)(dian)(dian)池對(dui)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流的(de)吸收是100%的(de)，即便(bian)是很小的(de)電(dian)(dian)(dian)(dian)(dian)流依(yi)然也(ye)存在(zai)過充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)問題。 5. 所有原裝充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器，除(chu)了充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)的(de)正(zheng)負兩極，還有與(yu)電(dian)(dian)(dian)(dian)(dian)池內部保(bao)(bao)護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)進行連接的(de)線路(lu)，以獲(huo)取(qu)電(dian)(dian)(dian)(dian)(dian)池容量、溫(wen)度補償參數、告警(jing)保(bao)(bao)護(hu)(hu)等信(xin)息。而(er)由于(yu)廠家品牌不同，電(dian)(dian)(dian)(dian)(dian)池/手機(ji)(ji)保(bao)(bao)護(hu)(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)電(dian)(dian)(dian)(dian)(dian)路(lu)方式有很大差別。所以，現(xian)階段(duan)真正(zheng)達(da)到兼(jian)容幾(ji)乎是不可能(neng)(neng)的(de)。 可想而(er)知(zhi)，此類成本低于(yu)10元的(de)“萬(wan)能(neng)(neng)手機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器”安(an)全性能(neng)(neng)有多好？ 希望各位讀者在(zai)選購的(de)過程(cheng)中，注意劣質產品帶(dai)來的(de)危害(hai)，為愛機(ji)(ji)配上(shang)一個安(an)全、實(shi)用的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器。