V2000Z, UNBELIEVABLE DVD Battery Time!!!

I am almost speechless. I though my brother was kidding. I watched an entire DVD movie from start to finish only using 30% of my battery. I started at 81% and ended at 51%. The movie was The Time Machine (2003), total running time 96 minutes. I used the factory InterVideo software that is not supposed to be as good using power as powerdvd. Could my undervolting caused the difference? I don't believe it, but it is true. Does anyone else get battery life like this?

 

You're using the 12 cell battery right??

 

Right, but still, isn't that amazing!? I thought I would be lucky to just watch one entire dvd on pure battery.

 

That is good news. On 12-cell you should be able to watch atleast 4 Hours Plus at brightness in middle.
I got 2:30 watching DVD( I think I was at Brightness level 4) with 6-Cell, So I guess you are getting still little better than mine.

Undervolting may help, but it does not help that much when it is running at low-speed(I guess may 10-15 min max diff). It really helps when your processor has to work at more load and high stepping.

Anways, it is always good to know! Happy Holidays!

 

I got 3hrs. surfing with my celeron model. I was reading these 45 min. horror stories about the Acers and Toshibas. The V2000 must be one of the best series for battery life.

 

Turions will get better battery life than the Celerons.

 

Based upon what I am reading the large Turion ML 37 is the worst on battery life;

The V2000's BatteryMark score was a mere 2 hours 29 minutes, below the dv4000's 3:17. We expected the V2000 to be more on a par with systems using the Turion's rival processor, the Pentium M. The dv4000's 48-Wh battery pack was slightly bigger than the V2000's 43-Wh unit, though. The Acer AS5000, which has a lower-clocked Turion processor (and therefore consumes less power) also did better on BatteryMark, at 3:15. We suggest purchasing the 12-cell extended battery ($25 bundled). The bigger battery adds a bit more weight (0.7 pounds), but a lot more juice—it lasted for 5:32 on our tests.

http://www.pcmag.com/article2/0,1895,1825639,00.asp

 

The V2000Zs use the ML version of the Turion, which consumes more power than any Pentium M which attributes to its lower battery life. I've also heard several reports of V2000Z batteries having abnormally high wear levels.

 

No, that is not true. That is a Myth that Higher speed Mobile processors consume more power. I have ML-37 and getting about 3 hours with 6-cell. All these processors TDP envelop is 35Watts as per AMD( from ML-28 to ML-40). In actual tests conducted by Toms hardware ML-37 consumes 35watts vs ML-28 consumes 32watts. But ML-37 much less power at lower speed(at same speed as ML-30@1600Mhz ML-37 consumes only 24.5watts, where as ML-30 uses 32watts).

In general there are platform advantages to Intel because of many chipset optimizations.

Anyways, check the laptop logic clash of the Titans article, it clears lot of myths.

 

I thought battery wearlevel myth has been cleared. Mobile Meter is not reading V2000z battery properly( or we could say V2000z is not giving proper battery information to MobileMeter). It reads even wrong capacity, can not show charge rate/discharge rate etc. Even if we swap a brand new battery it is going to say wearlevel of 33%-35%.

 

Well, its just stuff I heard that I thought I could pass around.

 

according to the link I posted the lower turion and the pentium M have battery marks of 3:15 and 3:17 while the larger turion comes in at 2:29, very significant. (My celeron also came in at just over the 3 hour mark.) This is from PCMAG. The myth seems to be that the larger AMDs are not power hogs. Ckecking out the Clash of Titans article the conditioning test, in which the pentium Ms hold the biggest lead, is the most relevant. In real life who runs the screen at anything around 50% brightness? For me (and most)it is at 100% all of the time.

 

I generally use 2nd step from bottom for typical evening browsing and step 5 during day. 100% is too bright and strains my eyes easily atleast on V2000z( My previous toshiba, dells are not this bright).

 

It depends on what benchmark you run. If you run the CPUs flat out, the Pentium M will outlast the Turion ML. OTOH, if you test more normal usage:
http://www.laptoplogic.com/resources/detail.php?id=17&page=13
The Turion has the edge in an apples-to-apples comparison. The problem with the V2000z is that the Intel-based V2000 has a 20% larger 6 cell battery. They have equal capacity 12 cell batteries though, which is another reason to order the 12 cell if you're buying a Configure-To-Order model. Or go straight to the new Compaq v5000z.

My old HP zv5000z, pre-Turion, can play a little over 3 hours of DVD video with its 12 cell battery. I get 3-4 hours with the usual wireless web browsing and word processing without monkeying with the brightness level, usually closer to 4 hours. The Turions should do quite a bit better than that, and the original poster's experience indicates that they do.

Don't believe everything you read in PCMag.

 

Another CPU comparison of battery life from Anand tech; Sempron VS celeron M

"...was also surprising to find out that neither of the Sempron based notebooks were really competitive at all in terms of battery life. The real race was between the Compaq Presario V2000 and the Gateway NX200S, which the Gateway won by just over 10%. .."

http://www.anandtech.com/mobile/showdoc.aspx?i=2625&p=14

 

The weak Intel GPU does add to battery life, and having a 44000mWh battery instead of a 40000mWh battery helps too (there's only one 12 cell battery, an 88000mWh model, which I highly recommend). Between those things and synthetic benchmarks that don't do all that good a job of modeling real-world usage you can make the Centrino platform look fairly good.

I don't think HP is playing battery games like that with the newer Turion notebooks (dv8000z, dv5000z). I haven't verified that yet though.

 

nice to hear someone hit on TDP. Anyways yeh ml=35, p-m is 27, mt=25 So yeh, when powernow tech is enabled its easier for a higher power processor to reach the same low end speed, it just makes sense. You have to also consider that the 35w ML includes TDP for the on-die memory controller. Since the P-m's memory controller is on the chipset, not the die, that TDP isnt being counted. The 800mhz on the turion will be faster than 800mhz on the p-m due to higher system bus/bandwidth from the memory controller.

 

Actually, they retested the battery test mark because of confusion with software optimization. Here is the link for new test

http://www.laptoplogic.com/resources/detail.php?id=17&page=14

 

I think the consensus was that flatout run it hard till it dies the dothan wins slightly, but on normal usage at 800mhz the turion will win. look at my previous post.