Power management low-level threshold: unique to ThinkPads?

I hope some of the more knowledgeable Lenovo owners can shed some light on a power-management question:
Is the low battery charging threshold (as in: min charge level required to start charging) of the ThinkPad series unique to them? Is there any other battery (also by other manufacturers) capable of that?
Long post warning, highllights for easier reading included.

Googling the net and scouring the forums has been less than helpful, as most topics on this issue are obfuscated with marketspeak "battery health" modes etc. providing no real answer unless I get some screenshots and try the software itself (which I've done, more on that later). And it seems to be a feature of the battery/BIOS as it physically needs to be aware of the charging thresholds even when the OS is not booted up.

To elaborate: the power management on a ThinkPad Edge 125 i use has an advanced setting that lets you set the low battery charging threshhold, i.e.: prevent charging unless the battery level is low enough. This feature is incredibly useful for those who use laptops for presentations every few days, and otherwise keep them on AC power - as it minimizes the number of charge cycles while ensuring you won't run out of juice mid-presentation.

Refer to:
ThinkPad: Lenovo Power Management Driver

Code:

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/grku10ww.txt

IdeaPad: Lenovo Energy Management

Code:

http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS032254

Unfortunately, while setting up a new Lenovo IdeaPad G580, its somewhat rudimentary Energy management software only allows the usual high-charge threshold which allegedly minimizes battery wear by setting it to charge up to a certain level (like 80% or less, you can't even adjust it). Note, however, this does not change the number of charging cycles, only stops the battery from reaching its full capacity which is supposedly not energy-efficient to maintain.

I've also worked with an ASUS N56VB whose energy management is on par with the IdeaPad's (so no luck there). I was disappointed the IdeaPad Y500 series is no better in that regard, as I had my sights set on 15.6" @1920x1080.

FYI, I have an old ASUS A3G (that used to be my primary PC) with a battery from 2006 that has been recharged at least every several months and otherwise taken out when on AC to prevent wear. It can now last only about 30 min on battery saving (NotebookHardwarControl shows over 80% battery wear). I'd really like to dispense with battery removal on AC in any future desktop replacements, but have found no alternative.

So, I'm just interested if any of you know which other laptops have this low-threshold ability (IdeaPads obviously don't).

P.S. The ThinkPad has already proven it's usefulness over the past few years, but I need better graphics without having to shell out for a mobile graphic workstation. So please let's not debate on merits of various battery "health plans" - I'm looking for this specific feature.

 

FWIW I recall that Lenovo has stopped supporting a number of Thinkpad softwares on Windows 8, so if that's the OS your new Lenovo is running, that could be the reason why you don't have this functionality anymore (to be confirmed by people more knowledgeable than me on Win8).
Edit: oh right your new laptop is an Ideapad, so maybe it never had that feature anyway.

I don't know if this feature is exclusive to Thinkpads either, maybe you'd have some more luck asking on the general forums.