本产品是一种便携式检查电动车电瓶的仪表。可以方便的检查 24V 、 36V 、 48V 三种电压，多种容量规格的电动车电瓶容量状态。在表盘上直接指示充足正常（绿区），不足尚能使用（黄区），终止重充（红区），快速直观地对电动车电瓶作出质量判断。
This tester for easy-to-do measurements in battery of electric bicycle. It can check three cells of batteries ， as 24V 、 36V 、 48V ， and varied capacity of batteries.You can check the capacity of battery by colour zone of the dial plate ， green means the battery capacity is ok ， yellow means the battery capacity is weak or bad ， but needle remains steady ， red means the battery capacity is bad or very run down and you should recharge it.