Does Lenovo Power manager prevent Windows 7 battery problem?

I read some news about Windows 7 killed laptop batteries. It harms batteries at hardware level, and so, you can never restore battery capacities. I searched, but found nobody with a Thinkpad complains about this.

Does Lenovo Power manager prevent it? Can anyone confirm?

 

Well it might have killed mine, because i had plugged in my AC adapter, at 22% battery so that i could game, little did i know it was connected to the laptop but not the outlet, and i disabled auto low battery shutdown, so i was playing GTA 4 and all of a sudden it powered off, i apparently was also so engrossed in the game that i didn't pay attention to my flashing orange battery LED indicator, plugged it in, powered up, and power manager said that the battery couldn't be charged "buy a new one". Now my battery won't charge up or power up, despite having 22% still apparently. I have since tooken it out.

 

Windows 7 does not kill batteries. If you drain a Li-ion battery past its critical voltage level, the built in protection circut prevents the battery from being charged which in turn my cause the cells to vent when charging.
Windows 7 only informs the user the battery is failing based on certain conditions the batteries built-in protection circut puts out. Windows 7 is less lenient than vista or xp when it comes to battery condition therefor will give battery error notices.

 

Gosh! I did not know this happened!

What is this 'critical voltage level' and how does one know what this level is?

Cheers!

 

The windows bug is just an over-assertive warning, but won't stop you from using your battery if it is still working.

If you battery doesn't charge anymore then its dead. If you were frequently using your T61 (taken from your sig) on battery, then now is about the time where it should die. LiIon cells are good for 500-1000 cycles. If it was a new battery you should be looking for a warranty replacement.

 

0%

It's the point at which the machine simply turns off to protect the batter (not shuts down, just turns off).

At what Windows reports as 0% the battery should still have voltage (if I remember on my T61, something like 10 volts?) and power left in it, but it'll turn off to prevent being drained any further.

 

All of you realize that the battery will charge when the notebook is plugged into an outlet, but not powered on, right?

If it's not charging:

1) Remove the battery and AC adapter. Wait 1 minute.
2) Plug the battery back in and the AC adapter.

DON'T turn on the laptop.

Wait a little while... like an hour or so.


If the battery isn't truly dead the charging circuit should charge the battery. If you power it back on after an hour and the battery gauge still shows 0%, your battery is b0rked. :/