The total output of series of generator will bigger than input?

[freepenguin]

Simple math calculation about any given series of generator can produce bigger output than input.
I've had this idea few years ago.
Let me give an example.
I name it "the driver", the power source of other generators in a row.
It runs by a battery of course. Assuming, the generator produces 30% of total battery power till it stops rotation.
2nd generator is connected by fluid coupling or air or magnetic force, the same mechanism inside of torque converter.
The power transmission ratio is over 90%.
3rd generator is exactly same right behind 2nd one.
The arrangement is simple like this
1st battery <-> the driver (1st generator) -> 2nd generator -> 3rd generator -> ...
the electric power from all the generators is stored into multiple batteries with controller.
1st battery goes down below specific voltage, controller turns over fully-charged battery to the driver's source.

In addition, I thought about many times of the power ratio between equal mass of magnet and gravitational weight.
The force of magnet is many times bigger than its own weight (gravitational force.)
Applying this, near zero-frictional rotational shaft can easily be built.
A shaft with magnetic around it rotates over magnetic field frictionless. (N - N or S - S).
Putting a coil beside it will creates A/C current.
(Current and voltage will be decided by the speed of rotation of magnets and field strength, coil's winding property.)

An rotational object without friction evolves under constant force (gravitational field of Earth) will every stop?
Or it sufficiently creates extra energy while use small amount of energy to keep it rotating.

It makes sense to me. I gotta review related laws of physics about these but,

I like to hear from you guys.