如何测量电池的好坏

如何测量电池的好坏
一般蓄电池电极是两块铅板，内注入的液体是稀硫酸，放电后正负两极都生成一层PbSO4。 
判断蓄电池的好坏，首先要了解蓄电池损坏的形式，一般损坏要以下几种：正极板软化，负极板硫酸盐化，极板短路断路等。判断蓄电池的好坏可以采用仪器测试和经验法： 
一、仪器测试：一般采用蓄电池放电测试仪，把测试仪两正负测钳分别夹持蓄电池正负电极，按下测试按钮，观察测试仪表指示情况：1、如果仪表指示电压9V以上说明蓄电池状态良好。2、如果低于9V但是指针处于某个数值不动说明蓄电池处于亏电状态，需要补充充电。3、如果指针慢慢下降说明蓄电池内部有短路现象。4、指针快速下降为0V说明蓄电池内部有断路。 
二、经验法：观察蓄电池电解液是否浑浊，浑浊说明蓄电池正极板软化。观察蓄电池底部是否有沉淀物，如有说明极板脱落蓄电池容量已存在不足。用手敲击蓄电池两个电极桩如果听到有空洞的声音说明极桩与极板发生断裂。用一粗导线短路正负极桩观察蓄电池各个加液孔，如发现某隔出现气泡说明该隔已损坏。
Generally, the battery electrode is two lead plates, and the liquid injected into it is dilute sulfuric acid. After discharge, a layer of PbSO4 is generated at both the positive and negative poles.

To judge whether a battery is good or bad, it is necessary to first understand the form of battery damage. Generally, the following types of damage are required: softening of the positive plate, sulfating of the negative plate, short circuit and open circuit of the plate, etc. Instrument test and experience method can be used to judge the quality of storage battery: