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anyone know if an dc motor from a electric scooter /wheelchair will work as generator ?blackpool.99@hotmail.com

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petercd7 years ago
the important thing to remember about DC motors when trying to run them as a generator, is what the working rpms of the particular motor are.

eg my 12v dc air horn compressor is rated at about 2000rpm, totally useless for a wind turbine because theres no way Im gonna spin a 6ft blade at 2000rpm.

Ideally you would use a low rpm motor <500rpm without a gearbox, it must be direct drive, the gearbox will add too much drag to make it a viable proposition for DIY  use.

So to answer your question, yes it will produce as a generator but at what revs, 1500rpm's? then the question becomes, what method are you going to use to spin it at its working revs?
Yes as long as it's a permanent magnet motor and you run it "backwards" it will produce usable electricity.
NachoMahma8 years ago
. Most DC motors can be used as generators.