一般來說電池號數越小電池也就越大，也就是說5號電池和7號電池相比，5號電池更大。當然我們還有要從實際尺寸和圖片對比來給大家直觀的說明5號電池和7號電池哪個大吧。

1、5號電池(chi)的尺寸

5號(hao)(hao)電(dian)(dian)池型號(hao)(hao)為AA或R6，尺寸規格尺直徑(jing)14mm，高度50mm；與1號(hao)(hao)電(dian)(dian)池、2號(hao)(hao)電(dian)(dian)池、3號(hao)(hao)電(dian)(dian)池、7號(hao)(hao)電(dian)(dian)池等區別(bie)是(shi)外形尺寸大小不(bu)一樣，共同(tong)點是(shi)都是(shi)屬(shu)于鋼殼(ke)圓柱(zhu)電(dian)(dian)池。

2、7號電(dian)池的尺寸

7號(hao)(hao)電(dian)(dian)池(chi)(chi)/LR03/AM4型號(hao)(hao)為AAA型電(dian)(dian)池(chi)(chi)；尺寸：直徑(jing)10.5mm；高(gao)度(du)44.5mm；5號(hao)(hao)電(dian)(dian)池(chi)(chi)和7號(hao)(hao)電(dian)(dian)池(chi)(chi)的額定電(dian)(dian)壓都是1.5V，在(zai)外形尺寸和容量上(shang)，5號(hao)(hao)電(dian)(dian)池(chi)(chi)都要大一點。

從(cong)上面的(de)(de)數(shu)據(ju)來看，5號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)直徑(jing)是(shi)14mm，7號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)直徑(jing)是(shi)10.5mm，5號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)比(bi)7號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)大；5號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)高度是(shi)50mm，7號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)高度是(shi)44.5mm，5號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)比(bi)7號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)要(yao)(yao)高。也(ye)就是(shi)說(shuo)5號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)體積比(bi)7號(hao)(hao)(hao)電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)體積要(yao)(yao)大些。