Is it safe to remove the laptop battery while the computer is on?

Hi All,

I saw this thread and have registered specially to answer within this thread as a friend asked me this exact question and directed me to this thread.

There is no reason why you can't take out a battery from your laptop while it is switched on with power supply connected. I have done it lots of times, I even did it while writing this response (Dell XPS)...

While the computer is plugged in to a functioning power supply, this is the main power supply and the battery is either charging or not supplying the laptop. If this wasn't the case then you could not use your laptop without the battery reducing to low charge and the laptop switching off.

While I would not recommend taking the battery out while the laptop is switched on and without a power supply attached, it would not damage the laptop and there is a low likelihood of it causing issues with your operating system. More likely you would reinstall the battery / insert the power plug and windows throws complaints about windows not being turned off correctly. Non-Saved work maybe lost.

Creditations; I have been building / working with computers since mid 1980's and I am an electrical / electronic engineer.

Just wanted to cap this thread off as its the first that comes up when you google this question.

What about adding battery during on position and power plug'd in ?
I'm thinking the laptops have 2 circuits one that detects/charges battery and a the other powers laptop.
Or it constantly runs thru the battery(wen present) making charging/battery life reduced compared to my first theory.

Hi, I had my Dell laptop on sleep and flipped the switch to release the battery from the computer. Then I put it back in. I opened it and I think I used it for a little while, but then it died because it was not plugged in (from the start of this ordeal). I plugged it in but it didn't turn on.