建立一个写好的备份手续，或许这样从备份中恢复程序就不需要您经常去做，然而这样也会使一-些操作步骤容易被忘记.影响电池使用寿命的因素每年更换一次电池是一个好的办法，当然，没有一个人可以准确的预测出一个备用电池多久会失去作用，因为这依赖于CPU做什么，处于什么环境温度当中和怎样使用

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