This would seem to accord quite closely with common usage.

We now face another sharp rise, with global usage set to reach 95m barrels daily by 2016.

With low to moderate usage it has a realistic discharge time of 10 hours.

The course is privately owned with daily usage available to anyone for $150.00 per round.

At the same time, this share was much higher than for example in the US, with only 34% usage.

There is no single definition and interpretations vary with usage.

Eventually the fort's name was changed to coincide with local usage.

Rarely, it may refer to a rate that does not vary with usage or time of use.

Argentina has a long history with irrigation needs and usage.

Something has to give, and it seems that "getting through the day with moderate usage" is the current design standard for battery life.