Just not having it on at all will save battery power.
The obvious desire here is very long run times on battery power.
All of the battery power is turned into audio energy.
They ran on battery power, which would not last long.
The music never stops - at least not until you run out of battery power.
They say how much battery power the computer has left.
Before too long we're going to run out of battery power.
Since 50 percent of Americans do not drive more than 20 miles a day, the battery power would cover all their driving.
But it's also the No.1 consumer of your battery power.
They were almost out of battery power, to the point that the car was slowing down.