Some Mac OS X 10.8 Mountain Lion users have been reporting that the operating system upgrade has lead to a noticeable drop in battery life on their MacBooks, and it now appears that Apple has been calling those affected to investigate the problem, reports “Macworld UK” (http://macte.ch/Hi0Hs).

An Engadget poll (http://macte.ch/25o46) shows that more than 8,000 (43%) of the 18,939 respondents that had downloaded OS X 10.8 Mountain Lion noticed a difference in battery life right away. A second poll from Razorianfly (http://macte.ch/0qpWe) showed that 77% of respondents are experiencing shorter battery life with Mountain Lion. The poll also revealed that the problem is most common on 2011 MacBook Pro models.

A thread (http://macte.ch/GGmrW) on Appleā€™s Support Communities now has over 450 replies and 27,000 views. This indicates that the problem is widespread notes “Macworld UK.”