The MacBook Pro is the newest addition to Apple's slate of high-end portable computers. Despite having been released just this fall, Consumer Reports (DR) had already evaluated three of its models.

CR had already tested its 13-inch model, both with and without the all-new Touch Bar, and its 15-inch model; all of which comes with the Touch Bar. The units that were tested were bought at retail, which ensures that they will be identical to the ones that consumers will be buying.

As posted on the Consumer Reports webpage, the results of the battery life tests were inconsistent, despite having conducted the trials repeatedly. The battery power of the 13-inch model with Touch bar ranged from 16 hours down to 3.75 hours. For the version without the Touch Bar, its battery ran 19.5 hours in one trial, but merely 4.5 hours in the next. Lastly, the 15-inch version had test results from 18.5 hours to 8 hours.

It is typical for a laptop's battery life to differ from one trial to another by 5 percent at the most. However, after the evaluation, CR has finalized that the MacBook Pro's battery test results were poles apart that there could be no basis for comparison. This makes Apple's latest laptop the first of its kind to not get a recommendation from Consumer Reports.

9to5mac directly corresponded with CR requesting for a re-testing, but CR Director of Electronics Testing Maria Rerecich was quick in shooting that idea down. "We do not believe re-running the tests is warranted," she responded.

Apple Marketing Executive Phil Schiller, however, does not agree with CR's report. Schiller posted on Twitter that the Cupertino-based tech company is "working with CR to understand their battery tests." "Results do not match our extensive lab tests or field data," he wrote.