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)障率高，可(ke)靠性差，精度(du)低等缺陷(xian)。因此，有時(shi)(shi)勤充(chong)(chong)(chong)電(dian)(dian)(dian)反而影響電(dian)(dian)(dian)池(chi)(chi)的(de)(de)使用壽命(ming)。將電(dian)(dian)(dian)池(chi)(chi)放空再(zai)充(chong)(chong)(chong)電(dian)(dian)(dian)，充(chong)(chong)(chong)電(dian)(dian)(dian)次(ci)數雖然減(jian)少，但放電(dian)(dian)(dian)時(shi)(shi)由(you)于單(dan)體電(dian)(dian)(dian)池(chi)(chi)之間總(zong)會存在(zai)差異可(ke)能造成某些單(dan)格過放電(dian)(dian)(dian)，過放電(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)接(jie)受能力(li)會大大降(jiang)低，引起充(chong)(chong)(chong)電(dian)(dian)(dian)不(bu)足(zu)的(de)(de)故(gu)障，另外由(you)于放完電(dian)(dian)(dian)再(zai)充(chong)(chong)(chong)電(dian)(dian)(dian)，充(chong)(chong)(chong)電(dian)(dian)(dian)器重負荷時(shi)(shi)間長，易損壞(huai)充(chong)(chong)(chong)電(dian)(dian)(dian)器。因此，綜(zong)合(he)上述，我們認為蓄電(dian)(dian)(dian)池(chi)(chi)放出電(dian)(dian)(dian)量的(de)(de) 50-70% 時(shi)(shi)進行(xing)一次(ci)充(chong)(chong)(chong)電(dian)(dian)(dian)是較合(he)理的(de)(de)，對電(dian)(dian)(dian)池(chi)(chi)的(de)(de)使用有好處。