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电池标注最少容量为140mAh
结果测试下来不到十分之一了
300mA电流放电,截止电压设置为3V,可以明显看到,电池电压从4.1V立刻下降到3.2V,说明电池内阻特别大了,结果这次的放电容量为2mAh
紧接着,第二次放电,电流设置为100mA,这次电压下降速度稍有好转,但最终也只是放出4mAh的电量
紧接着第三次放电,电流依然是100mA,但截止电压设置为2V,可以看到,当电池电压低于3V以后,电池输出立刻截止,变0V,这是电池的保护电路起作用了,最终放出容量2mAh,三次连续放电,总和还不到10mAh,这块电池真的是没救了