充電電池放電后需要充電器來充(chong)電(dian)，一個良好的充(chong)電(dian)器應該(gai)能夠提供恒定(ding)電(dian)流來充(chong)電(dian)，并且在電(dian)池足時能夠自(zi)動(dong)停止充(chong)電(dian)這樣才能使電(dian)池的壽命最長。海洋儀器推(tui)出的博計電(dian)子(zi)負(fu)(fu)載提供了非常良好的電(dian)池充(chong)電(dian)器測試解決方案，可(ke)以用(yong)來仿(fang)真鎳鎘、鎳氫等電(dian)池的電(dian)壓及負(fu)(fu)載形式。

     在充電過程中，當電池端電壓開始下降時(―△V負電壓斜率)，電池充電器應停止(zhi)充(chong)(chong)電(dian)(dian)(dian)，對電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)過(guo)充(chong)(chong)會(hui)造成電(dian)(dian)(dian)池(chi)(chi)(chi)永久性損壞。在(zai)測(ce)(ce)(ce)試(shi)電(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)器時，可以(yi)使用(yong)真實(shi)的(de)(de)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)(chi)(chi)測(ce)(ce)(ce)試(shi)，然而這(zhe)種方法需(xu)要非常冗長時間，并(bing)不切實(shi)際或不符合經濟效益。當使用(yong)電(dian)(dian)(dian)子負(fu)載時，可以(yi)設(she)(she)(she)定(ding)(ding)為(wei)定(ding)(ding)電(dian)(dian)(dian)壓(ya)負(fu)載模式，并(bing)且設(she)(she)(she)定(ding)(ding)所(suo)需(xu)的(de)(de)端電(dian)(dian)(dian)壓(ya)，此時電(dian)(dian)(dian)子負(fu)載將(jiang)吸(xi)取足夠電(dian)(dian)(dian)流(liu)控制(zhi)電(dian)(dian)(dian)壓(ya)穩定(ding)(ding)到(dao)設(she)(she)(she)定(ding)(ding)值。例如：測(ce)(ce)(ce)試(shi)1.2V的(de)(de)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)(chi)(chi)設(she)(she)(she)定(ding)(ding)端電(dian)(dian)(dian)壓(ya)從1V、1.2V、1.4V、1.5V來(lai)測(ce)(ce)(ce)試(shi)電(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)器的(de)(de)電(dian)(dian)(dian)流(liu)調整率，然后設(she)(she)(she)定(ding)(ding) 1.48V(－△V模擬電(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)(chong)足)來(lai)測(ce)(ce)(ce)試(shi)充(chong)(chong)電(dian)(dian)(dian)器是否會(hui)停止(zhi)充(chong)(chong)電(dian)(dian)(dian)。

    當使用海洋儀器推出的博計3302機框與3310D系列模塊式電子負載時，面板上電壓/電流表可直接顯示電池充電器的端電(dian)壓(ya)和(he)充電(dian)電(dian)流，五(wu)組記憶設定(ding)可(ke)設定(ding)高達五(wu)個不同的端電(dian)壓(ya)，以達到方便及重復性的測試需求。注意：實際(ji)充電(dian)電(dian)池輸出電(dian)壓(ya)可(ke)能不是1.2V，而是1.2V的倍數。