Modern systems use either primary or rechargeable batteries.

It is exactly like the primary battery in the fundamental circumstance that its ability for generating electric current depends upon chemical action.

These chemical actions result in the generation of an electric current as in a primary battery.

Some vehicles use primary batteries which provide perhaps twice the endurance-at a substantial extra cost per mission.

Davidson's experiments with battery locomotives were not a great success because he used primary batteries.

The performance of a recharged primary battery can be unpredictable.

Two of her primary batteries are disabled, and she can't maneuver.

Also, I'd recommend hooking the system to an auxiliary battery, in case the primary batteries fail.

I doubt very much whether the motor's at fault, which means the trouble must lie in the primary batteries themselves.

The big guns were the mecha's primary batteries, even more powerful than the tank cannon.