怎樣選擇合適的充電器？
用戶選擇充電器時(shi)自然會有不同的偏好，這里的建議著重性(xing)能方面的選擇。

1. 充電速度。 常見的充電器采用恒流充電方式，充電速度主要和充電器提供的(de)(de)(de)(de)(de)電(dian)(dian)(dian)流有關。充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流越(yue)(yue)(yue)大(da)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)速(su)度越(yue)(yue)(yue)快。而充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時間的(de)(de)(de)(de)(de)長(chang)短除了和充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)速(su)度有關，還(huan)要看(kan)電(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)(de)容量大(da)小。需要注意(yi)的(de)(de)(de)(de)(de)是，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流越(yue)(yue)(yue)大(da)，對充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器和電(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)(de)內部體系設計品(pin)質要求越(yue)(yue)(yue)高。一般(ban)情(qing)況(kuang)下，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流越(yue)(yue)(yue)大(da)，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)過程中可(ke)能(neng)導(dao)致(zhi)的(de)(de)(de)(de)(de)發(fa)熱越(yue)(yue)(yue)多，電(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)(de)性能(neng)可(ke)能(neng)受到(dao)的(de)(de)(de)(de)(de)損害越(yue)(yue)(yue)大(da)。品(pin)質低劣的(de)(de)(de)(de)(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器和電(dian)(dian)(dian)池(chi)在(zai)大(da)電(dian)(dian)(dian)流快速(su)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時很容易(yi)出現漏液等安全性能(neng)方面的(de)(de)(de)(de)(de)問題。

2. 充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)效(xiao)(xiao)率(lv) 充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)池輸(shu)入的(de)能量(liang)不是全部(bu)轉化(hua)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)池儲(chu)存(cun)的(de)能量(liang)，還有一部(bu)分是分別用于電(dian)(dian)(dian)(dian)(dian)(dian)池內部(bu)的(de)副反應(ying)和轉化(hua)為(wei)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)過程中的(de)熱量(liang)，所以充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)效(xiao)(xiao)率(lv)總(zong)是小于100%的(de)。充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)應(ying)控制(zhi)在(zai)一定范圍內，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)太(tai)大(da)或(huo)太(tai)小，都會降(jiang)低(di)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)效(xiao)(xiao)率(lv)。對(dui)于大(da)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)快速充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器來說(shuo)，還需(xu)要對(dui)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)方式進行特別的(de)設計(ji)，以便提高充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)效(xiao)(xiao)率(lv)。

3. 充電終止控制 小電流的充電器一(yi)(yi)(yi)般(ban)采用(yong)時間控(kong)制(zhi)方(fang)式。大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)快速充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)(yi)(yi)般(ban)采用(yong)-△V控(kong)制(zhi)和其他控(kong)制(zhi)方(fang)式相結(jie)合(he)(he)的(de)(de)設計，智能化程度(du)(du)要(yao)高一(yi)(yi)(yi)些。 充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)提(ti)供(gong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)越(yue)(yue)大(da)(da)(da)，充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)終止控(kong)制(zhi)方(fang)式越(yue)(yue)復雜，成本(ben)和價(jia)(jia)格(ge)越(yue)(yue)高。對(dui)于用(yong)戶來說(shuo)，要(yao)依(yi)據(ju)自(zi)己的(de)(de)實際情(qing)況來進(jin)(jin)行(xing)選擇(ze)(ze)。如(ru)果使(shi)用(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)池容(rong)量不是(shi)很高，或者對(dui)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)速度(du)(du)并不特別(bie)看重，就(jiu)可以(yi)選擇(ze)(ze)普(pu)通的(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)；如(ru)果有必要(yao)選擇(ze)(ze)價(jia)(jia)格(ge)較(jiao)高的(de)(de)快速充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，最好對(dui)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)和電(dian)(dian)(dian)(dian)(dian)(dian)池的(de)(de)性能多進(jin)(jin)行(xing)一(yi)(yi)(yi)些了解。比如(ru)，可以(yi)提(ti)供(gong)1000mA最大(da)(da)(da)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，用(yong)來給(gei)600mAh容(rong)量的(de)(de)鎳氫(qing)電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，就(jiu)需要(yao)電(dian)(dian)(dian)(dian)(dian)(dian)池是(shi)專門設計的(de)(de)適合(he)(he)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)池，或者要(yao)保證充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)可以(yi)提(ti)供(gong)更小(xiao)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)選擇(ze)(ze)。