Electrical Project - Advice Needed

[ryanc1993]

Im after a bit of advice on a project that i am currently working on.

Basically i have a motor powered by a 12v battery which turns a shaft through a gearbox.

What i want to do is use an alternator or generator which is also attached to the shaft via a gearbox to charge the 12v battery.

Is this possible? Can i simply use another 12v powered motor and switch the polarity around to use it as a generator. I am okay with the mechanical side of the project but just need a bit of advice with the electrical side of this.

Thanks in advance,
Ryan

[ryanc1993]

Im after a bit of advice on a project that i am currently working on.

Basically i have a motor powered by a 12v battery which turns a shaft through a gearbox.

What i want to do is use an alternator or generator which is also attached to the shaft via a gearbox to charge the 12v battery.

Is this possible? Can i simply use another 12v powered motor and switch the polarity around to use it as a generator. I am okay with the mechanical side of the project but just need a bit of advice with the electrical side of this.

Thanks in advance,
Ryan

[ryanc1993]

Simpo Two said:

You want to use a 12V battery to drive a motor to drive a generator to charge a 12V battery?

You could dispense with the motor, generator and one battery, and keep the other battery shiny and fully-charged on a shelf

Yes i want to charge the same 12V battery that is powering the motor so there is only one battery is involved. Similar to the setup in a car with the battery and the alternator charging it as the engine is running.