Why does my laptop run out of battery with the power off?

Computer

It's been about 6 months since I bought a laptop, but even if I turn it off, it's still on power, so I didn't know it was charging

But I'm sure I turned off my laptop and I'm not using it, but the next day, it turns out that the battery is quite low. This Do you know why?

  494 3   8 years ago