Enabling Battery Stretch

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tebore · #1 Post by **tebore** » Wed Aug 15, 2007 9:07 pm

A! I've figured how to enable Battery Stretch on the T60 I bet it works with all Thinkpads using the latest Powermanager.

Go to HKEY_Current_User\Software\IBM\PWRMGR\Data\ExtremeBatteryLife

Look for the IsCapable key and change the value to 1. You might have to reboot then just check your Powermanager.

The Spirit of X21 · #2 Post by **The Spirit of X21** » Wed Aug 15, 2007 9:18 pm

Nice, how did you figure that out?

tebore · #3 Post by **tebore** » Wed Aug 15, 2007 9:24 pm

Well I figured it was software based. I analyzed the install files and looked for some strings. I figured that it had to be ExtremeBatteryLife. So I search the registry for IBM or Lenovo then searched for ExtremeBatteryLife. So I just played around for a while.

lovebeta · #4 Post by **lovebeta** » Thu Aug 16, 2007 12:14 am

While you can turn it on this way, I am suspecting whether it is really helpful without the alleged hardware switches... Could you run some battery benchmarks?

lautamas · #5 Post by **lautamas** » Thu Aug 16, 2007 2:16 pm

Any idea what is this Battery Stretch thing?

SHoTTa35 · #6 Post by **SHoTTa35** » Thu Aug 16, 2007 2:38 pm

Battery Stretch is a group of settings that can enable longer usage of your system when enabled. You wont get 1hr more but 10-30mins is what i've heard. The software disables some stuff that you aren't using when the battery gets low to give you some extra time.

But Hmm that's funny, this is what i have:

HKEY_CURRENT_USER\Software\Lenovo\PWRMGRV\Data

I went there and i saw all the settings. I was thinking of adding that key to see if it would be enabled but i didn't think so anyways since i have a T42

That's probably only a T6x thing.

Talon88 · #7 Post by **Talon88** » Thu Aug 16, 2007 7:21 pm

:::

I have this setting at my Z60t with the laterest
PowerManager. But what will I see at PowerManager
after applied......??

:::

lautamas · #8 Post by **lautamas** » Thu Aug 16, 2007 8:54 pm

I changed the setting. After rebooting, the key turns back to 0 (zero). So, it doesnt work me. Any idea where?

gunston · #9 Post by **gunston** » Thu Aug 16, 2007 11:11 pm

Does it works on T4x thinkpad or only for T6x with Core Duo processor technology?

mychal · #10 Post by **mychal** » Fri Aug 17, 2007 8:33 am

tebore wrote:A! I've figured how to enable Battery Stretch on the T60 I bet it works with all Thinkpads using the latest Powermanager.

Go to HKEY_Current_User\Software\IBM\POWMGR\Data\ExtremeBatteryLife

Look for the IsCapable key and change the value to 1. You might have to reboot then just check your Powermanager.

hi how do i go to the HKEY u mention? sorry i am new to thinkpad

SHoTTa35 · #11 Post by **SHoTTa35** » Fri Aug 17, 2007 8:54 am

hehe, that's cute. Apparently new to Windows in general too because that's been in Windows since Windows 95.

You have to go to the registry but if you don't even know that i don't think you should go there since messing with things in there can and will render your Windows installation totally useless and you can loose a lot of data then.

You'd go to start - run then type regedit and click OK then browse as stated above.

*** Use at your own risk***

driftnet · #12 Post by **driftnet** » Wed Aug 22, 2007 4:35 pm

The Windows registry predates Windows 95.

tebore · #13 Post by **tebore** » Thu Aug 23, 2007 11:46 pm

A few things.

1. Yes apparently this does reset after a restart.

2. DO NOT MESS WITH THE MUTE VOLUME CHECK BOX. Otherwise it will screw with the sound that will require you to remove the bios battery to fix.

3. I believe it's more of a power manager thing than a hardware thing. For those that don't see the key you'll need to get the latest PM to see if it works.

rmendoza · #14 Post by **rmendoza** » Fri Aug 24, 2007 2:10 am

No such key in my computer (I am running Vista Business though).

Enabling Battery Stretch

Enabling Battery Stretch

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