upgrade from 4 cell to 6 cell battery

Hi, I purchased 4 cell thinkpad t61, can i upgrade 4 cell to 6 cell battery by buying just 2 cells or do i need to replace the complete battery with 6 cell?

 

Batteries aren't upgradeable...

So, yeah you need to buy a new one.

 

You can't just "add" 2 cell into your current battery to make it 6 cells. You'll need to purchase a completely new battery pack that has 6 cell in it.

 

thanks for answering my question

 

Well technically you could open it up, take out the batteries, solder on two more cells, wrap it in electrical tape or ceran wrap or why not do both, then cut a whole in the front of the tray, stick the batteries in there with the two sticking out, ghetto rig another piece of plastic to the two extra batteries, and there you have your 6 cell. It'll work, look a bit awkward though.

I might actually try that with my old 1600+ athlon laptop with a 2 minute charge battery.

 

I did that on an old handheld PC. I replaced a single 950mAh cell with 4 1350mAh cells.
Now it gets 9 hours of continuous video playback and more than 30 hours of continuous MP3 playback.

But yeah, it's something for an electrical engineer to do. Lithium is very flammable.

 

I hear you can get much more battery life if you invest in some onions.

<object width='425' height='355'><param name="movie" value="http://www.youtube.com/v/GfPJeDssBOM&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/GfPJeDssBOM&rel=1" type="application/x-shockwave-flash" wmode="transparent" width='425' height='355'></embed></object>

/joke