蓄电池基本常识100问 一次电池是普通的干电池，只能使用一次, 二次电池又叫可充电池。二次电池中的动力型电池（或称牵引电池）是电动车目前主要电源。-Asked a battery of 100 basic knowledge of an ordinary dry cell battery can only be used once, also known as secondary batteries rechargeable batteries. Secondary battery in the battery power (or traction batteries) is currently the main power electric vehicles.