recharge your batteries 恢复体力；恢复精力；休整；养精蓄锐

【例句】
We took a nap after work to recharge our batteries before going out dancing.
在我们出去跳舞之前， 下班后的时间我们小睡了一会儿来恢复精力。

You’ve been working too much. What you need is a few days away to recharge your batteries.
你工作太累了，你需要的就是休息几天来恢复精力。