battery pack

When the power goes out, the battery pack takes over.

He turned it over to get at the battery pack.

At least they'd brought a new battery pack for his radio.

She uses him as a sort of human battery pack.

The battery pack would power the radio for up to 20 hours.

In many cases, you will have to remove the battery pack to find the number.

They can run on battery packs, which makes them portable.

Sometimes it may be necessary to remove the battery pack to find the number.

The battery packs carry a charge for about an hour's use.

"No, the battery packs a five hour charge, and that's usually enough to get me through the whole day."

"It's like a special battery pack you get to put on.

He had to step over the broken parts of a field battery pack to reach the other two.

I'll have to invent a battery pack small enough to fit them.

Other areas of investigation are the battery packs that power these devices.

This means, among other things, increasing the capacity of their battery packs.

Power is a challenge; we generally provide extra battery packs.

The laser would have to be powered by a small battery pack.

It was connected to a chamber between itself and the battery pack.

The battery pack, which provides a source of electrical power.

Had to lug in two battery packs to get enough light.

That rate gives the battery pack a life span of five to seven years.

But this can be corrected by using a heavier battery pack.

But they also carry electric motors and a small battery pack.

A later battery pack that direct connected to the unit became available.

Power could be provided by a built-in battery pack, or from the aircraft itself.