New MBP Battery Life

[monaarts]

7 HOURS!? They went from 10 hours on the 13" to 7 hours!?!? That seems outrageous, I wonder why the loss.


- Joe

 

[amoergosum]

7 HOURS!?I wonder why the loss.

Sandy Bridge....Quad-Core....

 

[babyt]

Hmm the processor it has in it may be the reason ..
Just saying.

 

[sammich]

Apple changed their procedure for testing battery life, it's now more 'realistic'.

 

[Gibson88]

They are using more strict battery tests so it won't be a 3 hour difference, probably more like 1.5.

 

[Richard1028]

7 HOURS!? They went from 10 hours on the 13" to 7 hours!?!? That seems outrageous, I wonder why the loss.

Yeah... might be deal breaker for me.

The processors better be worth it.

 

[solarein]

The quad-core Sandy Bridges are 45w TDP processors, the Arrandales were 35w TDP. Makes sense for the battery life to go down on the quad-core models.

 

[presdaddy]

Imagine if they replaced the ODD with 50% more battery...

 

[jp700p]

Apple changed their procedure for testing battery life, it's now more 'realistic'.

Can someone explain this? So that means maybe the 2010 10hr = 2011 7hr new rating?

 

[monaarts]

I heard the sandy bridge processors were more energy efficient? So why did the 15" and 17" battery life stay the same and the 13" went down 30%.... And as far as battery testing goes, my old MBP was right about 7 hours as they advertised and my current MBA is over the 7 hours they advertise.


- Joe

 

[solarein]

I heard the sandy bridge processors were more energy efficient? So why did the 15" and 17" battery life stay the same and the 13" went down 30%.... And as far as battery testing goes, my old MBP was right about 7 hours as they advertised and my current MBA is over the 7 hours they advertise.


- Joe

More efficient != Consume less

 

[monaarts]

More efficient != Consume less

More efficient than the C2D == Consume Less

 

[davie18]

More efficient than the C2D == Consume Less

More efficient does not necessarily mean consuming less power.

It would mean consuming less power for the amount of horsepower you are getting from the processor. At least that's how I see it.

So even if the new processors are more efficient they might still consume more power.

 

[GGJstudios]

Can someone explain this? So that means maybe the 2010 10hr = 2011 7hr new rating?

http://www.apple.com/macbookpro/features.html

Apple is using a new, more rigorous battery test that measures the results you can expect in the real world — like surfing your favorite sites in a coffee shop or catching up on the latest web videos. Even using this new test, MacBook Pro delivers amazing battery life. For your real life.

 

[ChronoIMG]

7 hours is leaps and bounds over my current 15" MBP which can muster a "real world" usage of about 2 hours, if I don't use it for "real world" stuff too much.

 

[solarein]

More efficient than the C2D == Consume Less

An engine that consumes 100 joules of energy and does 80 joules of work in an hour is more efficient than an engine that consumes 50 joules of energy and does 10 joules of work in an hour, but the former engine is going to give you less battery life. Makes sense?