目前(qian)鉛酸(suan)蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)(rong)量(liang)(liang)(liang)有(you)以(yi)下幾種標(biao)示(shi)(shi)(shi)方法，如(ru)C20、C10、C5、C2，分(fen)別(bie)表示(shi)(shi)(shi)以(yi)20h、10h、5h、2h的(de)(de)(de)(de)(de)(de)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)速(su)(su)率放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)是和到(dao)(dao)(dao)的(de)(de)(de)(de)(de)(de)實際(ji)(ji)容(rong)(rong)量(liang)(liang)(liang)。如(ru)果是20h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)速(su)(su)率下的(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)(liang)，標(biao)示(shi)(shi)(shi)應當是C20，C20=10Ah的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，這是指以(yi)C20/20的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)20h得(de)到(dao)(dao)(dao)的(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)(liang)值。換算到(dao)(dao)(dao)C5，即以(yi)C20規定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)4倍放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，容(rong)(rong)量(liang)(liang)(liang)就只(zhi)有(you)7Ah左(zuo)右了，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動自行車行駛一(yi)(yi)般在1~2h內(nei)(nei)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，鉛酸(suan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)在1~2h（C1~C2）內(nei)(nei)放(fang)完電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，接近于規定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)10倍，那么(me)它實際(ji)(ji)能(neng)供給的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)只(zhi)有(you)C20放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)50%~54%電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)(rong)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)標(biao)示(shi)(shi)(shi)為(wei)(wei)C2，即以(yi)2h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)速(su)(su)率標(biao)示(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)(liang)，如(ru)果不是C2，則應當進行計算，得(de)出正確的(de)(de)(de)(de)(de)(de)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時間和容(rong)(rong)量(liang)(liang)(liang)。以(yi)5h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)速(su)(su)率（C5）標(biao)示(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)(liang)為(wei)(wei)100%的(de)(de)(de)(de)(de)(de)話，若改為(wei)(wei)在3h內(nei)(nei)放(fang)完，實際(ji)(ji)容(rong)(rong)量(liang)(liang)(liang)只(zhi)有(you)88%；2h內(nei)(nei)放(fang)完，只(zhi)有(you)78%；1h內(nei)(nei)放(fang)完，就只(zhi)剩以(yi)5h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時容(rong)(rong)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)65%了。標(biao)示(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)(liang)假定(ding)是10Ah。那么(me)現在以(yi)3h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)只(zhi)能(neng)得(de)到(dao)(dao)(dao)8.8Ah的(de)(de)(de)(de)(de)(de)實際(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)；若是以(yi)1h放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，則只(zhi)能(neng)得(de)到(dao)(dao)(dao)6.5Ah的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)，隨意縮小放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)速(su)(su)率，放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)>0.5C2，不僅容(rong)(rong)量(liang)(liang)(liang)要比標(biao)示(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)減(jian)少，對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)(de)(de)(de)壽(shou)命(ming)也有(you)一(yi)(yi)定(ding)的(de)(de)(de)(de)(de)(de)影響(xiang)。同理，對標(biao)示(shi)(shi)(shi)（額定(ding)）容(rong)(rong)量(liang)(liang)(liang)為(wei)(wei)C3的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)，放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)(wei)C3/3，即=0.333C3，如(ru)果是C5，放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)應為(wei)(wei)0.2C5，類推。

同(tong)(tong)樣功率(lv)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機，額定電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)不同(tong)(tong)，耗(hao)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)速度絕對(dui)不同(tong)(tong)。比如(ru)：洞(dong)是180W的(de)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機，額定電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)為(wei)(wei)24V時，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)(wei)7.5A；而額定電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)為(wei)(wei)36V時，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)只有5A，它們用(yong)同(tong)(tong)樣容量的(de)電(dian)(dian)(dian)(dian)(dian)(dian)池組(zu)，組(zu)合為(wei)(wei)36V，以5A電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)化(hua)反應(ying)緩(huan)慢(man)，而組(zu)合為(wei)(wei)24V，以7.5A電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)化(hua)反應(ying)就(jiu)會相對(dui)激烈，不如(ru)以5A放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)從容。

電(dian)池(chi)以0.5C以下的(de)電(dian)流(liu)放(fang)(fang)電(dian)才是(shi)經濟(ji)的(de)。什么(me)叫0.5C？C：表示的(de)是(shi)電(dian)池(chi)的(de)容量(liang)(liang)，C2表示用2小(xiao)時(shi)放(fang)(fang)時(shi)率放(fang)(fang)電(dian)時(shi)對(dui)(dui)電(dian)池(chi)測定得出的(de)實際(ji)容量(liang)(liang)。這就是(shi)說(shuo)，對(dui)(dui)標定為(wei)C2容量(liang)(liang)時(shi)，每小(xiao)時(shi)應當放(fang)(fang)出一半(ban)的(de)容量(liang)(liang)（0.5C2）才符合容量(liang)(liang)規定，如果超過0.5C2，它的(de)容量(liang)(liang)就要打折(zhe)扣了。而且(qie)對(dui)(dui)電(dian)池(chi)壽命不利。

現(xian)在，以(yi)2小時放電(dian)時率標示的(de)容量為12Ah的(de)電(dian)池，應(ying)標為C2=12Ah，所(suo)以(yi)0.5C2=0.5?2=6A。所(suo)以(yi)，12Ah的(de)電(dian)池以(yi)0.5C放電(dian)，就是電(dian)流為6A。

10Ah的電池(chi)，0.5A。

電池(chi)長時間(jian)工作(zuo)(zuo)，輸出的(de)(de)(de)(de)工作(zuo)(zuo)電流不大于(yu)電池(chi)額(e)(e)定(ding)容(rong)量Cx的(de)(de)(de)(de)確X，X是(shi)該項電池(chi)額(e)(e)定(ding)值(zhi)(zhi)下的(de)(de)(de)(de)時率(lv)，這是(shi)選擇的(de)(de)(de)(de)原則。X是(shi)2，則應按2小(xiao)時放電時率(lv)；X值(zhi)(zhi)是(shi)3，則使(shi)用(yong)時間(jian)應按3小(xiao)時考慮。