Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicate:
Are notebook batteries generally hot-swappable?
Is it ok to remove a laptop battery while the laptop is running on AC power?

I have an HP laptop and I'm wondering if it will mess anything up if I swap the battery while it's running and plugged in.

share|improve this question

marked as duplicate by Ƭᴇcʜιᴇ007, Simon Sheehan, slhck, ChrisF, studiohack Nov 27 '11 at 0:36

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Yes, that's ok. – ott-- Nov 26 '11 at 21:25
4  

It's fine. The laptop may run in a reduced performance mode while the battery is out, but it should return to normal as soon as the battery is replaced.

share|improve this answer
    
Why would the performance be reduced? – wizlog Nov 27 '11 at 0:30
    
@wizlog A lot of computers, particularly ones with intel processors, automatically downclock once you're on battery power. – Simon Sheehan Nov 27 '11 at 0:31
2  
Although I fail to see why a removed battery, while using AC power, will make it have a lower performance.. – Simon Sheehan Nov 27 '11 at 0:34
    
@wizlog The AC adapter supplies power through a long, thin cord with a lot of inductance. The current can't increase quickly enough to compensate for sudden increases in CPU power consumption. To protect against a dangerous drop in voltage, some laptops down-clock the CPU when the battery is removed. – David Schwartz Nov 27 '11 at 1:21
1  
@wizlog It makes no sense to respond to an explanation with a request for a source. But if you insist on a source, here's one and here's another. – David Schwartz Nov 27 '11 at 1:38

Not the answer you're looking for? Browse other questions tagged or ask your own question.