怎樣選擇合適的充電器？
用戶選擇充電器時自然會有(you)不同的偏(pian)好，這里的建議(yi)著(zhu)重性能方面的選擇。

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(ti)供的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)有關(guan)。充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)越(yue)大，充(chong)電(dian)(dian)(dian)(dian)速度越(yue)快。而充(chong)電(dian)(dian)(dian)(dian)時間的(de)(de)(de)(de)(de)長短除(chu)了和充(chong)電(dian)(dian)(dian)(dian)速度有關(guan)，還要看電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)(de)容量大小(xiao)。需要注意的(de)(de)(de)(de)(de)是，充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)越(yue)大，對充(chong)電(dian)(dian)(dian)(dian)器和電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)(de)內部(bu)體(ti)系設計(ji)品質要求越(yue)高。一(yi)般情況下(xia)，充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)(liu)越(yue)大，充(chong)電(dian)(dian)(dian)(dian)過程中(zhong)可(ke)能導致(zhi)的(de)(de)(de)(de)(de)發熱越(yue)多，電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)(de)性能可(ke)能受到的(de)(de)(de)(de)(de)損害越(yue)大。品質低劣的(de)(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)器和電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)在大電(dian)(dian)(dian)(dian)流(liu)(liu)快速充(chong)電(dian)(dian)(dian)(dian)時很容易(yi)出現(xian)漏(lou)液等安全性能方面的(de)(de)(de)(de)(de)問題。

2. 充(chong)(chong)(chong)電(dian)(dian)(dian)效(xiao)率(lv) 充(chong)(chong)(chong)電(dian)(dian)(dian)時向電(dian)(dian)(dian)池輸入(ru)的(de)(de)(de)能(neng)量不(bu)是(shi)全(quan)部(bu)轉(zhuan)化(hua)為電(dian)(dian)(dian)池儲存的(de)(de)(de)能(neng)量，還有一部(bu)分是(shi)分別用于電(dian)(dian)(dian)池內部(bu)的(de)(de)(de)副反應和轉(zhuan)化(hua)為充(chong)(chong)(chong)電(dian)(dian)(dian)過(guo)程中的(de)(de)(de)熱量，所以(yi)充(chong)(chong)(chong)電(dian)(dian)(dian)效(xiao)率(lv)總是(shi)小于100%的(de)(de)(de)。充(chong)(chong)(chong)電(dian)(dian)(dian)時充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流應控制(zhi)在一定范圍內，充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流太大或太小，都會降低充(chong)(chong)(chong)電(dian)(dian)(dian)效(xiao)率(lv)。對(dui)于大電(dian)(dian)(dian)流的(de)(de)(de)快速充(chong)(chong)(chong)電(dian)(dian)(dian)器來說，還需要(yao)對(dui)充(chong)(chong)(chong)電(dian)(dian)(dian)器的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)方式進行特(te)別的(de)(de)(de)設計，以(yi)便提高充(chong)(chong)(chong)電(dian)(dian)(dian)效(xiao)率(lv)。

3. 充電終止控制 小電流的充電器一(yi)般(ban)采(cai)(cai)用(yong)時間控制(zhi)方式(shi)(shi)。大電(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)快速充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)般(ban)采(cai)(cai)用(yong)-△V控制(zhi)和(he)其他控制(zhi)方式(shi)(shi)相結合(he)的(de)(de)(de)設計，智能化程(cheng)度(du)要高(gao)(gao)一(yi)些(xie)(xie)。 充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)提(ti)供(gong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流越大，充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)終(zhong)止(zhi)控制(zhi)方式(shi)(shi)越復雜，成(cheng)本和(he)價格越高(gao)(gao)。對于用(yong)戶來說，要依(yi)據自(zi)己的(de)(de)(de)實際(ji)情況來進(jin)行選擇。如果(guo)使用(yong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容量(liang)不是很高(gao)(gao)，或者對充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)速度(du)并不特(te)別看(kan)重(zhong)，就可(ke)以選擇普通的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)；如果(guo)有必要選擇價格較高(gao)(gao)的(de)(de)(de)快速充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，最好對充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)和(he)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)性能多進(jin)行一(yi)些(xie)(xie)了解。比如，可(ke)以提(ti)供(gong)1000mA最大充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，用(yong)來給600mAh容量(liang)的(de)(de)(de)鎳氫電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，就需要電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)是專門設計的(de)(de)(de)適合(he)大電(dian)(dian)(dian)(dian)(dian)流充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，或者要保證充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)可(ke)以提(ti)供(gong)更小(xiao)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流選擇。