Manager

I'm not sure you can do that.

You'd need to know the total load required by your specific batteries, find some suitable generators, then figure out a way to drive it.

If you are trying to build a self charging drive system, that requires no external power, yet drives you along at 25 to 55mph, forget it.

You could try a web search.

Thank you, I what about if I instal two generator on each can I charge my battery,s but it have to be self charging.

Can you please explain your application in more detail, the lack of information and poor English is making it difficult to understand exactly what you want (which currently appears to be an over unity generation scheme for a vehicle.

How about just increasing the size of your vehicle alternator (or adding a second - space permitting) and using that to charge up additional batteries, it would be easier (and safer) than trying to mount generators to trailer axles.

battery and the generator are placed in a trailler which is to be puled, by a car, charging requierment are 2 X 36 Volt DC - 800 mA Batterys
and 4 X 20 Volt DC
and 4 X 24 volt DC

Given the additional information you have supplied I would suggest using a battery charger powered off the vehicle's cigarette lighter port.

It is the quickest, simplest and likely cheapest way rather than trying to connect generators to the trailer axle(s) and all the additional problems that would cause (including variable charging voltage damaging the batteries and trailer safety issues).

Can you explain you application in more detail? Also, are you trying to both power a load in the trailer and charge the batteries when the vehicle is moving?

Thank you, I will try that.