Apple Says Hidden Safari Setting Led to Flawed
Battery tests conducted by Consumer Reports showing inconsistent uptime with Apple's new MacBook Pro were inaccurate, Apple said on Tuesday, explaining that the publication had enabled a hidden setting in its Safari browser.
In a statement issued to AppleInsider, Apple said it worked with Consumer Reports over the holidays, and determined that its testing methods for the new MacBook Pro were flawed. The company had initially announced just before Christmas that it was cooperating with Consumer Reports to determine what went wrong with the MacBook Pro units they tested.
Apple says battery inconsistency was caused by a hidden Safari setting for developers which turns off the browser cache. The setting is not used by customers.
The Safari fix is available to beta testers, presumably in the latest pre-release build of macOS 10.12.3, made available to registered developers on Tuesday. Apple says the full fix will be provided to the public in an upcoming macOS update.
Previous testing by the publication led Consumer Reports to not recommend any new MacBook Pro model due to battery life concerns. Their in-house testing revealed wild fluctuations in unplugged operating survivability, in some cases ranging from 16 hours to as little as 3.75 hours.
In its initial findings, the publication left the door open for an Apple response, noting the battery life of many modern products are "influenced" by software updates.
"If Apple updates its software in a way that the company claims will substantively change battery performance, we will conduct fresh tests," the original report said.
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