How are generators and batteries different?

Answer 1

== == batterys are stored. cranks are made

----------------------------------------------------------------------------------------------------------

While I can not argue with this answer I can add some to it.

If you are defining electricity as the flow of electrons in a circuit, then the general answer to the difference between the electricity from the battery and the generator is stored energy and produced energy.

The battery is always going to be DC (direct current) and a hand cranked unit almost always will be to. The primary measurable difference is going to be that the battery will be a steady voltage at a steady draw on it at least as far as the "life" of the batterys charge lasts.

The hand cranked generator usually also direct current, (unless it is a high end model with a built in regulator) will most likely vary its output voltage and amperage depending on the cranking speed.

Basically though the idea of either is delivering a flow of electrons steadily to the load, a light or motor etc..

AC or alternating current is produced differently and actually changes the direction of the electron flow very quickly.

Answer 2

Mechanical energy into DC energy storage by the brush in the battery. Into mechanical energy to electrical frequency, transmission and control signals required. Moreover, a large starting current, the energy stored in the battery generally is not enough, or,completely insufficient to support the longer rotational mechanical energy.

Down without a special battery, but no matter what the battery, storage time is verylong, the discharge time is short, start supporting mechanical energy is feasible, can not support the mechanical energy of prolonged exercise. Otherwise, they become aperpetual motion machine myth.