GDGT’s Ryan Block spots something that didn’t crop up at Apple’s MacBook presser last week. The new batteries offer 4700mAh instead of the last generation’s 5600mAh.

I’d estimate that the integrated NVIDIA chipset and ever more behind-the-scenes power-saving techniques are why Apple is claiming such solid life despite killing a fifth of the machine’s energy supply — but a 20% reduction is still no small number

My last-gen MacBook Pro actually reports 6040mAh on a full charge, perhaps because it’s the 17″ model. Oh, for the day where we stop having to worry about whether a laptop can even get as far as lunchtime.

New MacBook Pro: now with 20% less battery power [Ryan Block]