![]() My 2008 MBP - which only realistically gets about 1:30 per charge - often shows only ~1 hour (& 95% battery) left once it's finished booting but that then increases to sometimes as much as 2 hours depending on what I'm doing. ![]() What they don't say is which "25 popular websites"Īlso, your battery life can increase during use. Battery life varies by use and configuration. The wireless web test measures battery life by wirelessly browsing 25 popular websites with display brightness set to 50%. ![]() ![]() Wireless web testing conducted by Apple in October 2011 using preproduction 2.8GHz dual-core Intel Core i7–based 13-inch MacBook Pro units, preproduction 2.4GHz quad-core Intel Core i7–based 15-inch MacBook Pro units, and preproduction 2.4GHz quad-core Intel Core i7–based 17-inch MacBook Pro units. This is how Apple tests to get their battery life figures (it's a footnote on the product page): ![]()
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