The phrase "a day of usage" is correct and usable in written English.
It can be used to refer to a specific day when something is utilized or consumed, often in contexts related to technology, products, or services.
Example: "The software license allows for a day of usage before requiring renewal."
Alternatives: "a day of use" or "one day of operation".
It has a "class leading" 2,300 mAh battery, which Sony says should last a day of heavy usage.
The common heritage shows in the Borgata's height (43 stories); its golden shell, which glitters in the sunlight; its opulent shops, brimming with Cartier jewelry and Rolex watches; and its stabs at artsy sophistication, like a leitmotif of multicolored glass sculptures that look like octopuses as seen by Timothy Leary on a day of heavy usage.
The 320mAh battery will get you about a day of mixed usage, and the TI OMAP 3 processor should give you all the oomph you need.
In addition to the power station itself, the NuDock comes with the NuKi, a 2,000 mAh portable battery you can carry with you to keep your phone topped off over the course of a long weekend or a day of intense usage.
Even if displays can be made practically invisible and much more energy-efficient, smart glasses will need battery technologies that can hold up to a full day of usage and eliminate the bulging batteries currently connected to Glass.
On top of that, the battery life is strong, lasting me nearly a "full day of usage" — starting at 6AM and ending at 12AM.
This appeared after a day of fairly heavy usage with lots of pulling in and out of the pocket and briefcase.
Even though it doesn't have the battery strength to make it through a day of moderate to heavy usage, there are still some serious advantages to this phone over others.
This study investigated the effects of the type of menu (WinCE and Palm) and the stage of usage (whether the current usage is the first, second, third, fourth, fifth, or eighth day of usage) on the users' performance in operating a menu displayed in the first, second, or third layers of a PDA display.
This study investigated the effects of the type of menu (scrolling or hierarchy) and the stage of usage (whether the current usage is the first, second, third, fourth, fifth, or eighth day of usage) on the users' performance in operating a menu displayed in the first, second, or third layers of personal digital assistant (PDA) display.
