My battery seems to be holding a decent charge for the moment.

Its purpose is to hold a "charge of spiritual energy for an indefinite period."

Batteries not holding a charge are the problem here.

They tried jump-starting the car, but the battery wouldn't hold a charge.

Many of the batteries could not hold a charge after being used for a while.

This strike held a particularly strong positive charge of 35 kAmps.

I can't believe that thing still holds a charge and the drive still runs.

But of course the black hole can hold a charge.

Otherwise, "they will lose their capacity to hold a charge," he said.

Though only the Agitar would hold a charge here, it was enough.