數碼(ma)(ma)相(xiang)(xiang)機(ji)的(de)(de)(de)迅速(su)普(pu)及(ji)在無形中也帶動(dong)(dong)了(le)鎳氫(qing)充電(dian)(dian)電(dian)(dian)池(chi)的(de)(de)(de)高速(su)發展。由(you)于數碼(ma)(ma)相(xiang)(xiang)機(ji)的(de)(de)(de)工作電(dian)(dian)流普(pu)遍較大(da)，也比較耗(hao)電(dian)(dian)，普(pu)通的(de)(de)(de)堿性電(dian)(dian)池(chi)已經難以長(chang)時間勝任數碼(ma)(ma)相(xiang)(xiang)機(ji)的(de)(de)(de)動(dong)(dong)力(li)之源。而鎳氫(qing)充電(dian)(dian)電(dian)(dian)池(chi)不但容量較大(da)，還能提供較大(da)的(de)(de)(de)工作電(dian)(dian)流，又能重(zhong)復使用且環保，自然而然地成為(wei)了(le)大(da)部分數碼(ma)(ma)相(xiang)(xiang)機(ji)玩家首選的(de)(de)(de)能源。

　　綜觀鎳氫電池市場，與原裝充電器搭配銷售的套裝電池工作穩定，但價格較高，因此不少玩家都把目光瞄準了價格相對較低的零售電池或價格更為便宜的工業包裝電池--這些電池都沒有充電器搭配銷售。另外，一部分玩家電池使用量較大，一個充電器已經不能滿足日常需求，所以另行購買電池充電器是必要的。因而如何去選擇讓自己滿意的鎳氫電池充電器便成了重要的事情。

　　劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)危(wei)害： 一(yi)個充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)價格(ge)(ge)一(yi)般都在(zai)幾十元到數百(bai)元之間，比(bi)起數碼相機的(de)(de)(de)價格(ge)(ge)來(lai)說真(zhen)是(shi)顯(xian)得(de)有些微(wei)不(bu)(bu)(bu)足道。但(dan)這個小(xiao)(xiao)(xiao)小(xiao)(xiao)(xiao)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)如(ru)果質(zhi)量不(bu)(bu)(bu)過關(guan)的(de)(de)(de)話，給用(yong)戶帶來(lai)的(de)(de)(de)危(wei)害卻不(bu)(bu)(bu)小(xiao)(xiao)(xiao)。首(shou)先，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由于配件質(zhi)量不(bu)(bu)(bu)過關(guan)或電(dian)(dian)(dian)氣(qi)性(xing)能不(bu)(bu)(bu)良，自身(shen)容易出現短(duan)路、過熱燒毀等(deng)(deng)故障，輕則(ze)讓用(yong)戶損失充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)，重(zhong)則(ze)會引起各種災難性(xing)的(de)(de)(de)危(wei)害如(ru)火(huo)災等(deng)(deng)；其(qi)次，劣質(zhi)充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)由于輸出電(dian)(dian)(dian)流不(bu)(bu)(bu)穩定或不(bu)(bu)(bu)符(fu)合規格(ge)(ge)，會引起電(dian)(dian)(dian)池(chi)過熱、充(chong)(chong)電(dian)(dian)(dian)不(bu)(bu)(bu)完(wan)全等(deng)(deng)故障，輕則(ze)影(ying)響使用(yong)，重(zhong)則(ze)會引起電(dian)(dian)(dian)池(chi)爆炸(zha)等(deng)(deng)危(wei)險。由此看(kan)來(lai)，充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)質(zhi)量的(de)(de)(de)好壞的(de)(de)(de)確要(yao)引起消費(fei)者的(de)(de)(de)注(zhu)意。作一(yi)個形象的(de)(de)(de)比(bi)喻，電(dian)(dian)(dian)池(chi)好比(bi)戰(zhan)場上的(de)(de)(de)士(shi)兵，而充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)就(jiu)好比(bi)后(hou)(hou)勤(qin)(qin)部(bu)隊--要(yao)讓士(shi)兵在(zai)火(huo)線上隨時(shi)保持良好的(de)(de)(de)戰(zhan)斗狀態，后(hou)(hou)勤(qin)(qin)部(bu)隊至關(guan)重(zhong)要(yao)。下面就(jiu)讓我們(men)一(yi)步步來(lai)選(xuan)購充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)。

　　充電器的分類(lei)：充(chong)(chong)(chong)(chong)電(dian)器(qi)(qi)通常按(an)充(chong)(chong)(chong)(chong)電(dian)時間來分類(lei)，有"快速充(chong)(chong)(chong)(chong)電(dian)器(qi)(qi)（以下(xia)簡(jian)稱快充(chong)(chong)(chong)(chong)）"和"慢速充(chong)(chong)(chong)(chong)電(dian)器(qi)(qi)（以下(xia)簡(jian)稱慢充(chong)(chong)(chong)(chong)）"兩種。鎳氫(qing)電(dian)池的充(chong)(chong)(chong)(chong)電(dian)時間基本上(shang)可按(an)下(xia)列公式計(ji)算：充(chong)(chong)(chong)(chong)電(dian)時間（小(xiao)時）≈效(xiao)率(lv)系數(shu)×容量（mAh）÷充(chong)(chong)(chong)(chong)電(dian)電(dian)流(mA) 注：效(xiao)率(lv)系數(shu)為(wei)1.2～1.5之間的一個不(bu)定數(shu)，因不(bu)同充(chong)(chong)(chong)(chong)電(dian)器(qi)(qi)而異(yi)。

　　慢充一般采用(yong)恒流方(fang)式(shi)充電(dian)(dian)，且在電(dian)(dian)池(chi)充滿后自動轉為(wei)涓(juan)流充電(dian)(dian)狀態。慢充的優(you)點是電(dian)(dian)路(lu)設(she)計簡(jian)單，易于(yu)實現(xian)，價格也較(jiao)低(di)(di);由于(yu)采用(yong)小電(dian)(dian)流恒流充電(dian)(dian)，有效地降低(di)(di)了電(dian)(dian)池(chi)在充電(dian)(dian)過程(cheng)中的發熱量，對延(yan)長(chang)電(dian)(dian)池(chi)的使用(yong)壽命很有好處。缺點就是充電(dian)(dian)時(shi)間太(tai)長(chang),特別是電(dian)(dian)池(chi)數(shu)量較(jiao)多的情況下有點力不從(cong)心。

　　快(kuai)(kuai)充(chong)一(yi)般都(dou)采(cai)用(yong)脈沖(chong)大電(dian)(dian)流(liu)充(chong)電(dian)(dian)，但由于電(dian)(dian)池在(zai)大電(dian)(dian)流(liu)充(chong)電(dian)(dian)過程中會產(chan)生極化(hua)反(fan)應(ying)，導(dao)致電(dian)(dian)池溫度迅(xun)速升高，充(chong)滿后若再繼續加電(dian)(dian)就有(you)可能發(fa)生爆(bao)炸和(he)燃(ran)燒，所以快(kuai)(kuai)充(chong)還采(cai)用(yong)專用(yong)芯片來控制充(chong)電(dian)(dian)過程，實(shi)時監(jian)控電(dian)(dian)池電(dian)(dian)量，一(yi)旦充(chong)滿就自動停止充(chong)電(dian)(dian)，使整個(ge)充(chong)電(dian)(dian)過程變(bian)得安(an)全、高效。快(kuai)(kuai)充(chong)適(shi)合電(dian)(dian)池數量較多或心急的(de)玩(wan)家。缺點便是(shi)無法避免的(de)大發(fa)熱量，對電(dian)(dian)池壽命(ming)有(you)一(yi)定的(de)影(ying)響.價(jia)格也比(bi)慢充(chong)貴一(yi)些(xie)。

　　類型：前文提到的快充和慢充，也是挑選充電器的(de)一(yi)個重要標(biao)準。兩者比較起來(lai)，快(kuai)(kuai)(kuai)充(chong)(chong)的(de)缺點是(shi)對(dui)電(dian)池(chi)的(de)壽(shou)命(ming)有(you)所影響以及價格(ge)較高。不過在這個效率至上(shang)的(de)時(shi)代，快(kuai)(kuai)(kuai)充(chong)(chong)的(de)流行(xing)趨勢(shi)越來(lai)越明顯，因為使(shi)用快(kuai)(kuai)(kuai)充(chong)(chong)所節省的(de)時(shi)間遠比電(dian)池(chi)所減(jian)少的(de)壽(shou)命(ming)來(lai)得重要。況(kuang)且(qie)現(xian)在充(chong)(chong)電(dian)電(dian)池(chi)的(de)價格(ge)也(ye)越來(lai)越低，所以在資金(jin)允許的(de)情況(kuang)下，最好選擇快(kuai)(kuai)(kuai)充(chong)(chong)。 （質量較差的(de)充(chong)(chong)電(dian)器內部構造(zao)極為簡單，電(dian)路板的(de)工(gong)藝更是(shi)糟(zao)糕，因此如果是(shi)買非名牌充(chong)(chong)電(dian)器的(de)話，開蓋看(kan)看(kan)還是(shi)有(you)必要的(de)）

　　外觀(guan)及內在品質(zhi)(zhi)：優(you)秀的(de)(de)(de)做工在很大程度(du)(du)上也是(shi)(shi)廠(chang)商實(shi)力的(de)(de)(de)體現(xian)，而用料的(de)(de)(de)質(zhi)(zhi)量(liang)則(ze)是(shi)(shi)安(an)全使用的(de)(de)(de)保障。我(wo)們在購(gou)買時，可注(zhu)意一下(xia)充(chong)(chong)(chong)電(dian)(dian)(dian)器外觀(guan)的(de)(de)(de)光澤度(du)(du)、邊角和(he)小地方的(de)(de)(de)精細程度(du)(du)；掂掂分量(liang)做一下(xia)比較(jiao)，一般(ban)來(lai)說同類型(xing)產(chan)品偷工減料者重(zhong)量(liang)相(xiang)對較(jiao)輕。須要注(zhu)意的(de)(de)(de)是(shi)(shi)，快充(chong)(chong)(chong)由(you)于使用了控制(zhi)芯片(pian)以(yi)及開關電(dian)(dian)(dian)源|穩(wen)壓器，重(zhong)量(liang)有可能(neng)(neng)會比慢充(chong)(chong)(chong)輕，所(suo)以(yi)掂重(zhong)量(liang)這種差別方法最(zui)適合于同一類型(xing)的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)器。在條件(jian)允許的(de)(de)(de)情況(kuang)下(xia)可以(yi)要求商家將充(chong)(chong)(chong)電(dian)(dian)(dian)器打開觀(guan)看內部(bu)結構，看看內部(bu)電(dian)(dian)(dian)路(lu)板電(dian)(dian)(dian)子(zi)元件(jian)的(de)(de)(de)排(pai)列、焊接工藝等(deng)方面，以(yi)確(que)保貨真價實(shi)。另外,最(zui)好將自己使用的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)帶上，在商家處充(chong)(chong)(chong)電(dian)(dian)(dian)30分鐘左右,觀(guan)察一下(xia)電(dian)(dian)(dian)池(chi)的(de)(de)(de)發熱(re)量(liang)--質(zhi)(zhi)量(liang)好的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)器能(neng)(neng)夠有效地控制(zhi)發熱(re)量(liang),而劣質(zhi)(zhi)充(chong)(chong)(chong)電(dian)(dian)(dian)器則(ze)有可能(neng)(neng)將電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)得滾燙--這種現(xian)象特別容(rong)易出(chu)現(xian)在劣質(zhi)(zhi)快充(chong)(chong)(chong)上。這樣的(de)(de)(de)產(chan)品一定不能(neng)(neng)購(gou)買。

　　易用(yong)性：為了日后使(shi)用(yong)更加方便，在(zai)選擇充電器時(shi)最好多(duo)考慮一下產品的易用(yong)性。

　　有的(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)只能為AA電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，而有些(xie)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)不(bu)但能充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)AA電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，還可(ke)以(yi)(yi)為AAA電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，如果(guo)有多(duo)種(zhong)型號的(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)，可(ke)以(yi)(yi)選(xuan)擇(ze)這種(zhong)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。 常(chang)見的(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)一(yi)(yi)般可(ke)以(yi)(yi)同時為4節(jie)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，手中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)比較多(duo)，同時又不(bu)愿(yuan)意為大(da)量電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)而長時間(jian)等待(dai)的(de)(de)(de)用(yong)戶(hu)(hu)，可(ke)以(yi)(yi)選(xuan)擇(ze)有6個(ge)(ge)(ge)或(huo)8個(ge)(ge)(ge)甚至更多(duo)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)插槽的(de)(de)(de)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，當然(ran)，這類(lei)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)(de)體積會大(da)一(yi)(yi)些(xie)，不(bu)便(bian)攜(xie)帶(dai)，價格也自然(ran)會高一(yi)(yi)些(xie)。 很多(duo)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)由(you)(you)于電(dian)(dian)(dian)(dian)路(lu)設計的(de)(de)(de)關系,只能為偶數(shu)節(jie)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)如2節(jie)、4節(jie)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)成對地充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，這對于某些(xie)使用(yong)單(dan)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)用(yong)戶(hu)(hu)來(lai)說很不(bu)方便(bian)，于是市場有一(yi)(yi)些(xie)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在電(dian)(dian)(dian)(dian)路(lu)設計時考(kao)慮到了這一(yi)(yi)問題，它們可(ke)以(yi)(yi)為1節(jie)、3節(jie)等奇數(shu)節(jie)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。在購買時建(jian)議選(xuan)擇(ze)這類(lei)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，以(yi)(yi)便(bian)日后的(de)(de)(de)使用(yong)。由(you)(you)于鎳氫(qing)和鎳鎘電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)結(jie)構相近(jin)，所(suo)以(yi)(yi)有的(de)(de)(de)鎳氫(qing)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在設計時還考(kao)慮到了對鎳鎘電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)兼(jian)容，如果(guo)想讓(rang)手中(zhong)的(de)(de)(de)老電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)再次煥(huan)發青(qing)春，這類(lei)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)倒是一(yi)(yi)個(ge)(ge)(ge)不(bu)錯的(de)(de)(de)選(xuan)擇(ze)。

　　除此以外,還有一個小地方要提醒大家注意，有的充電器為方便(bian)攜帶，將插(cha)頭(tou)與機(ji)身做(zuo)在了一起，不(bu)(bu)過在使用時往往會在多(duo)用插(cha)線(xian)板上占(zhan)去兩個甚(shen)至更多(duo)插(cha)座(zuo)的(de)位置，對于插(cha)座(zuo)比較集中的(de)朋友來說(shuo)，充(chong)(chong)電時就不(bu)(bu)得不(bu)(bu)把其他的(de)插(cha)頭(tou)拔掉，很不(bu)(bu)方便(bian)。如果不(bu)(bu)想為充(chong)(chong)電器另行購買一個插(cha)線(xian)板的(de)話(hua)，就應該(gai)選擇非(fei)一體(ti)式的(de)充(chong)(chong)電器了。