用放电叉测量日月潭蓄电池电容量。放电叉是一支3V电压表和一个定值负载电阻并联装在一个带柄叉中的放电计，它只能检查日月潭 蓄电池的一个单格（2V）。检测时，将两针抵牢一个单格的正负电桩，在指针稳定的3～5s内迅速读出所指示的放电数值。指示在1.75V以上，说明该格完全符合标准；指示在1.75～1.5V之间，应当及时充电；指示在1.5V以下，说明日月潭 蓄电池有故障应予排除。
The capacity of Riyuetan battery was measured with discharge fork. The discharge fork is a 3V voltmeter and a constant load resistor installed in parallel in a fork with handle. It can only check a single cell (2V) of Riyuetan battery. During the detection, two pins are pressed against a single positive and negative electric pile, and the indicated discharge value is read out quickly within 3-5s when the pointer is stable. If the indication is more than 1.75v, it means that the grid fully meets the standard; if the indication is between 1.75v and 1.5V, the battery should be charged in time; if the indication is less than 1.5V, it means that the sun moon pool battery has faults and should be eliminated.
