由于放電越淺，其循環次數將大幅度增加。因此，按這一理論，勤充電對循環壽命是有益的，但就目前市場上大量流通使用的充電器來講，由于受價格因素及技術水平等影響，電池充電器存在(zai)故(gu)障(zhang)率高(gao)，可靠(kao)性差(cha)，精度低等缺陷(xian)。因此(ci)，有時(shi)勤充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)反而影(ying)響電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的使用(yong)壽命(ming)。將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池放空再充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)次數雖然(ran)減少，但放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)由(you)于單(dan)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池之間總(zong)會存在(zai)差(cha)異可能造成某些單(dan)格過(guo)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，過(guo)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)接受能力(li)會大(da)大(da)降(jiang)低，引(yin)起(qi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)不(bu)足(zu)的故(gu)障(zhang)，另外由(you)于放完(wan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)再充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器重負荷時(shi)間長，易損(sun)壞充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器。因此(ci)，綜合(he)上述，我們認(ren)為(wei)蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池放出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量的 50-70% 時(shi)進行一次充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)是(shi)較合(he)理的，對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的使用(yong)有好處。