數碼相機(ji)(ji)的(de)迅(xun)速(su)普(pu)及在(zai)無形中也(ye)帶動(dong)了(le)鎳氫(qing)充電(dian)電(dian)池(chi)的(de)高速(su)發(fa)展。由于數碼相機(ji)(ji)的(de)工作(zuo)電(dian)流普(pu)遍較大(da)，也(ye)比較耗電(dian)，普(pu)通的(de)堿性電(dian)池(chi)已經難以長時間勝任數碼相機(ji)(ji)的(de)動(dong)力之(zhi)源(yuan)。而鎳氫(qing)充電(dian)電(dian)池(chi)不但容量(liang)較大(da)，還(huan)能提(ti)供較大(da)的(de)工作(zuo)電(dian)流，又能重復使用且環保，自然而然地成為了(le)大(da)部(bu)分數碼相機(ji)(ji)玩家首選的(de)能源(yuan)。

　　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(lie)(lie)質充(chong)(chong)電(dian)(dian)(dian)器的(de)危害(hai)： 一個充(chong)(chong)電(dian)(dian)(dian)器的(de)價格(ge)一般都(dou)在幾十元(yuan)到數(shu)百元(yuan)之(zhi)間(jian)，比起數(shu)碼相機的(de)價格(ge)來說真是顯得有些微(wei)不(bu)(bu)足道。但這個小小的(de)充(chong)(chong)電(dian)(dian)(dian)器如果質量不(bu)(bu)過關(guan)(guan)的(de)話，給用(yong)戶帶來的(de)危害(hai)卻不(bu)(bu)小。首先，劣(lie)(lie)質充(chong)(chong)電(dian)(dian)(dian)器由于配(pei)件(jian)質量不(bu)(bu)過關(guan)(guan)或電(dian)(dian)(dian)氣性(xing)(xing)能(neng)不(bu)(bu)良(liang)，自(zi)身容(rong)易出現短(duan)路、過熱燒毀等故障(zhang)，輕(qing)則(ze)讓用(yong)戶損失充(chong)(chong)電(dian)(dian)(dian)器，重則(ze)會(hui)引(yin)(yin)起各種(zhong)災難性(xing)(xing)的(de)危害(hai)如火災等；其次，劣(lie)(lie)質充(chong)(chong)電(dian)(dian)(dian)器由于輸出電(dian)(dian)(dian)流不(bu)(bu)穩定或不(bu)(bu)符合規格(ge)，會(hui)引(yin)(yin)起電(dian)(dian)(dian)池(chi)(chi)過熱、充(chong)(chong)電(dian)(dian)(dian)不(bu)(bu)完(wan)全(quan)等故障(zhang)，輕(qing)則(ze)影響使用(yong)，重則(ze)會(hui)引(yin)(yin)起電(dian)(dian)(dian)池(chi)(chi)爆炸等危險(xian)。由此看(kan)來，充(chong)(chong)電(dian)(dian)(dian)器質量的(de)好(hao)壞的(de)確(que)要(yao)(yao)引(yin)(yin)起消費者的(de)注(zhu)意。作一個形象的(de)比喻，電(dian)(dian)(dian)池(chi)(chi)好(hao)比戰(zhan)場上的(de)士兵(bing)(bing)，而充(chong)(chong)電(dian)(dian)(dian)器就好(hao)比后勤(qin)部(bu)(bu)隊(dui)--要(yao)(yao)讓士兵(bing)(bing)在火線上隨時保持良(liang)好(hao)的(de)戰(zhan)斗(dou)狀(zhuang)態(tai)，后勤(qin)部(bu)(bu)隊(dui)至關(guan)(guan)重要(yao)(yao)。下(xia)面就讓我(wo)們一步(bu)步(bu)來選購充(chong)(chong)電(dian)(dian)(dian)器。

　　充電器的分類：充(chong)電(dian)(dian)(dian)器(qi)通常按充(chong)電(dian)(dian)(dian)時間(jian)來分類，有"快速(su)充(chong)電(dian)(dian)(dian)器(qi)（以下(xia)簡(jian)稱快充(chong)）"和"慢速(su)充(chong)電(dian)(dian)(dian)器(qi)（以下(xia)簡(jian)稱慢充(chong)）"兩種。鎳(nie)氫電(dian)(dian)(dian)池(chi)的充(chong)電(dian)(dian)(dian)時間(jian)基本(ben)上可按下(xia)列公式計算：充(chong)電(dian)(dian)(dian)時間(jian)（小時）≈效(xiao)率系數×容量（mAh）÷充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(mA) 注：效(xiao)率系數為1.2～1.5之間(jian)的一(yi)個不定(ding)數，因不同充(chong)電(dian)(dian)(dian)器(qi)而異。

　　慢(man)(man)充(chong)(chong)一(yi)般采(cai)(cai)用恒(heng)流(liu)方式充(chong)(chong)電(dian)(dian)，且在電(dian)(dian)池(chi)充(chong)(chong)滿后自動轉為(wei)涓流(liu)充(chong)(chong)電(dian)(dian)狀態。慢(man)(man)充(chong)(chong)的優點是(shi)電(dian)(dian)路設計簡單，易于實現，價格也較(jiao)低;由于采(cai)(cai)用小電(dian)(dian)流(liu)恒(heng)流(liu)充(chong)(chong)電(dian)(dian)，有(you)效地降低了電(dian)(dian)池(chi)在充(chong)(chong)電(dian)(dian)過程中(zhong)的發熱量(liang)，對延長(chang)電(dian)(dian)池(chi)的使(shi)用壽命很有(you)好處(chu)。缺(que)點就是(shi)充(chong)(chong)電(dian)(dian)時間(jian)太(tai)長(chang),特別是(shi)電(dian)(dian)池(chi)數量(liang)較(jiao)多的情況下有(you)點力不從心。

　　快充(chong)(chong)一(yi)般都(dou)采(cai)用(yong)脈沖大(da)電(dian)(dian)流充(chong)(chong)電(dian)(dian)，但由于電(dian)(dian)池(chi)在大(da)電(dian)(dian)流充(chong)(chong)電(dian)(dian)過程(cheng)(cheng)中會產生極化反應，導致電(dian)(dian)池(chi)溫度迅速升高，充(chong)(chong)滿后若再繼(ji)續加(jia)電(dian)(dian)就有可能(neng)發生爆炸和(he)燃燒，所以快充(chong)(chong)還(huan)采(cai)用(yong)專(zhuan)用(yong)芯片來控制充(chong)(chong)電(dian)(dian)過程(cheng)(cheng)，實(shi)時監控電(dian)(dian)池(chi)電(dian)(dian)量，一(yi)旦充(chong)(chong)滿就自動(dong)停止(zhi)充(chong)(chong)電(dian)(dian)，使整個充(chong)(chong)電(dian)(dian)過程(cheng)(cheng)變得安全(quan)、高效。快充(chong)(chong)適(shi)合電(dian)(dian)池(chi)數量較多或心急的玩(wan)家。缺點便是(shi)無法避免的大(da)發熱量，對電(dian)(dian)池(chi)壽命有一(yi)定的影響.價格也(ye)比慢充(chong)(chong)貴(gui)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)(de)一個重(zhong)(zhong)要標準。兩者比(bi)較起來(lai)(lai)，快(kuai)充(chong)(chong)(chong)的(de)(de)缺(que)點是(shi)(shi)對電(dian)(dian)(dian)池(chi)的(de)(de)壽命有所影(ying)響以及價(jia)格(ge)較高。不過(guo)在(zai)這個效率至(zhi)上的(de)(de)時代，快(kuai)充(chong)(chong)(chong)的(de)(de)流行(xing)趨勢越(yue)(yue)來(lai)(lai)越(yue)(yue)明(ming)顯，因為使用(yong)快(kuai)充(chong)(chong)(chong)所節省(sheng)的(de)(de)時間遠比(bi)電(dian)(dian)(dian)池(chi)所減少的(de)(de)壽命來(lai)(lai)得(de)重(zhong)(zhong)要。況且現在(zai)充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)的(de)(de)價(jia)格(ge)也越(yue)(yue)來(lai)(lai)越(yue)(yue)低(di)，所以在(zai)資金(jin)允許的(de)(de)情況下，最好選擇快(kuai)充(chong)(chong)(chong)。 （質(zhi)量較差的(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)器內部構造極為簡單，電(dian)(dian)(dian)路板(ban)的(de)(de)工藝更是(shi)(shi)糟糕，因此如果是(shi)(shi)買非名牌(pai)充(chong)(chong)(chong)電(dian)(dian)(dian)器的(de)(de)話，開蓋看看還是(shi)(shi)有必要的(de)(de)）

　　外(wai)觀及(ji)內(nei)在(zai)品質(zhi)：優秀的(de)做工(gong)在(zai)很大程(cheng)度上(shang)也是廠商(shang)實力的(de)體現(xian)(xian)，而(er)用料(liao)的(de)質(zhi)量(liang)(liang)(liang)則(ze)是安全使用的(de)保障。我(wo)們在(zai)購(gou)買時(shi)，可(ke)注(zhu)意一(yi)(yi)(yi)下充(chong)(chong)(chong)電(dian)(dian)器(qi)外(wai)觀的(de)光澤度、邊(bian)角(jiao)和小地(di)方(fang)的(de)精細程(cheng)度；掂掂分量(liang)(liang)(liang)做一(yi)(yi)(yi)下比(bi)較(jiao)，一(yi)(yi)(yi)般(ban)來說同類(lei)型產品偷工(gong)減(jian)料(liao)者重量(liang)(liang)(liang)相對較(jiao)輕。須要注(zhu)意的(de)是，快(kuai)充(chong)(chong)(chong)由于(yu)使用了(le)控制芯片以(yi)(yi)(yi)(yi)及(ji)開(kai)關(guan)電(dian)(dian)源|穩壓器(qi)，重量(liang)(liang)(liang)有(you)可(ke)能(neng)會比(bi)慢充(chong)(chong)(chong)輕，所以(yi)(yi)(yi)(yi)掂重量(liang)(liang)(liang)這(zhe)種(zhong)差別(bie)方(fang)法最(zui)適合于(yu)同一(yi)(yi)(yi)類(lei)型的(de)充(chong)(chong)(chong)電(dian)(dian)器(qi)。在(zai)條件(jian)允許(xu)的(de)情況(kuang)下可(ke)以(yi)(yi)(yi)(yi)要求(qiu)商(shang)家將(jiang)(jiang)充(chong)(chong)(chong)電(dian)(dian)器(qi)打開(kai)觀看內(nei)部結(jie)構(gou)，看看內(nei)部電(dian)(dian)路板(ban)電(dian)(dian)子(zi)元(yuan)件(jian)的(de)排列、焊接工(gong)藝等方(fang)面，以(yi)(yi)(yi)(yi)確保貨(huo)真(zhen)價實。另(ling)外(wai),最(zui)好將(jiang)(jiang)自己使用的(de)充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)池(chi)(chi)帶上(shang)，在(zai)商(shang)家處充(chong)(chong)(chong)電(dian)(dian)30分鐘左(zuo)右,觀察一(yi)(yi)(yi)下電(dian)(dian)池(chi)(chi)的(de)發熱量(liang)(liang)(liang)--質(zhi)量(liang)(liang)(liang)好的(de)充(chong)(chong)(chong)電(dian)(dian)器(qi)能(neng)夠有(you)效地(di)控制發熱量(liang)(liang)(liang),而(er)劣質(zhi)充(chong)(chong)(chong)電(dian)(dian)器(qi)則(ze)有(you)可(ke)能(neng)將(jiang)(jiang)電(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)得滾燙--這(zhe)種(zhong)現(xian)(xian)象特別(bie)容易出現(xian)(xian)在(zai)劣質(zhi)快(kuai)充(chong)(chong)(chong)上(shang)。這(zhe)樣的(de)產品一(yi)(yi)(yi)定不能(neng)購(gou)買。

　　易用(yong)(yong)性：為了日后使用(yong)(yong)更加方便，在選(xuan)擇(ze)充電器時最好多考慮(lv)一下產品的易用(yong)(yong)性。

　　有(you)(you)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)只(zhi)能(neng)(neng)為(wei)(wei)AA電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)，而有(you)(you)些(xie)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)不(bu)但能(neng)(neng)充(chong)AA電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)，還可以(yi)為(wei)(wei)AAA電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)，如果(guo)有(you)(you)多(duo)(duo)(duo)種(zhong)型號(hao)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)，可以(yi)選(xuan)擇(ze)這(zhe)(zhe)種(zhong)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。 常見的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)一(yi)般可以(yi)同時(shi)為(wei)(wei)4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)，手中的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)比較多(duo)(duo)(duo)，同時(shi)又不(bu)愿意為(wei)(wei)大(da)量電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)而長時(shi)間等(deng)待的(de)(de)用(yong)戶(hu)，可以(yi)選(xuan)擇(ze)有(you)(you)6個(ge)(ge)或8個(ge)(ge)甚至更多(duo)(duo)(duo)充(chong)電(dian)(dian)(dian)(dian)(dian)插槽(cao)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，當然(ran)，這(zhe)(zhe)類充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)體積(ji)會大(da)一(yi)些(xie)，不(bu)便攜(xie)帶，價格也自(zi)然(ran)會高一(yi)些(xie)。 很多(duo)(duo)(duo)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)由(you)于(yu)電(dian)(dian)(dian)(dian)(dian)路(lu)設計(ji)的(de)(de)關(guan)系,只(zhi)能(neng)(neng)為(wei)(wei)偶數節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)如2節(jie)(jie)、4節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)成對地充(chong)電(dian)(dian)(dian)(dian)(dian)，這(zhe)(zhe)對于(yu)某(mou)些(xie)使(shi)用(yong)單個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)用(yong)戶(hu)來說很不(bu)方便，于(yu)是市(shi)場有(you)(you)一(yi)些(xie)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在電(dian)(dian)(dian)(dian)(dian)路(lu)設計(ji)時(shi)考慮(lv)(lv)到了這(zhe)(zhe)一(yi)問題(ti)，它(ta)們可以(yi)為(wei)(wei)1節(jie)(jie)、3節(jie)(jie)等(deng)奇(qi)數節(jie)(jie)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)。在購買時(shi)建(jian)議選(xuan)擇(ze)這(zhe)(zhe)類充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，以(yi)便日(ri)后的(de)(de)使(shi)用(yong)。由(you)于(yu)鎳(nie)氫(qing)和(he)鎳(nie)鎘電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)結構相(xiang)近，所以(yi)有(you)(you)的(de)(de)鎳(nie)氫(qing)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)在設計(ji)時(shi)還考慮(lv)(lv)到了對鎳(nie)鎘電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)兼容，如果(guo)想讓(rang)手中的(de)(de)老電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)再(zai)次煥發(fa)青春(chun)，這(zhe)(zhe)類充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)倒是一(yi)個(ge)(ge)不(bu)錯(cuo)的(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(wei)方便攜帶，將插頭(tou)與機身做在(zai)了一(yi)(yi)起，不過在(zai)使用時往(wang)往(wang)會在(zai)多用插線板上占去兩(liang)個甚至(zhi)更多插座的位置，對(dui)于插座比較集中(zhong)的朋友(you)來說(shuo)，充(chong)電時就不得不把其他的插頭(tou)拔(ba)掉，很不方便。如果不想為(wei)充(chong)電器另行購買(mai)一(yi)(yi)個插線板的話(hua)，就應(ying)該選擇非一(yi)(yi)體(ti)式的充(chong)電器了。