电池放在温度箱里面(没有充放电),设定温箱温度从常温降到-20度,运行后,当温度降到到-6度左右电量从52%跳变为0,温度降到-20度以后,开始升温,当温度升高到4度左右电量又从0跳变到51%;什么原因?如何解决?
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