MacBook and MacBook Pro Battery Life Has Improved Slightly
We've been trying to understand the new Apple Macbook Pro battery life ratings compared to the old models. It's been hard to quantify generational differences because Apple is now testing using a more challenging battery benchmark, while improving the efficiency of the new machines via Penryn chips and LED backlights.We just got comparative numbers between the previous and current generation notebooks from Apple. They read as follows:
Macbooks and Macbook Pros have 30-45 minutes more life than the previous generation using the same Wireless Web test. With LED backlighting, the numbers jump to an hour. Note that the 17-inch notebook is not standard with an LED backlit LCD, so those are not the estimates given. Lastly, while Apple's test is harder than it used to be, as we saw in the Air, the battery life you or I will get on these machines will likely be even less. (The battery claims in the previous generations were much higher because the old test was basically typing on a text editor with Wi-Fi off, which obviously inflated previous battery life estimates beyond reason.)Source- http://gizmodo.com/361001/apple-says-macbook-and-macbook-pro-battery-life-has-improved-slightly
