17" Battery 2010 vs 2011, Indeed Smaller ?

[Jazwire]

I have a 2011 17" I7 2.3 Quad, & a 2010 17" I7 2.66

It appears the 2011 models do not have the same size battery and it is indeed smaller.
According to "About this Mac"
2010 I7 - 17" - Full Charge Capacity - 12,576 (mAh)
2011 I7 - 17" Full Charge Capacity - 8,888 (mAh)

Unless there is another number or stat I should be looking at.
I am waiting for my 2010 to fully charge to see the battery life time is comparatively.

I will update as soon as it is done.

 

[Erasmus]

The Apple website says the new batteries are 95Wh. Which I'm sure is at the very least close to the old capacities.

Maybe the new batteries operate at a higher voltage, and hence hold less mAh?

 

[The-Pro]

i read somewhere that the battery in the 2010 17" runs at 7.9V (i think) and the 2011 17" battery at like 10.8V. dont know the exact voltages, i do think they are correct, i read this like 2 weeks back. so the batteries have the same overall capacity although the mAh is less. dont ask my why, or how this works, i dont get it

 

[johnnyturbouk]

i read somewhere that the battery in the 2010 17" runs at 7.9V (i think) and the 2011 17" battery at like 10.8V. dont know the exact voltages, i do think they are correct, i read this like 2 weeks back. so the batteries have the same overall capacity although the mAh is less. dont ask my why, or how this works, i dont get it

Where the physics boffs at? Lol

All I can remember is ohms law V=IR

I'm just a humble anaesthetist