Running dynamo with electrical connections

[pdg]

Hi,

Does anyone know if it's ok to have a dynamo mechanically connected (spinning) but with the electrical terminals not connected to anything?

Many thanks, Peter.

[RDfella]

Won't hurt it in the short term, but likely to glaze the commutator if run for prolonged period.

[pdg]

Many thanks for your reply. It's a refurbished dynamo which I don't want to damage, so looks like some wiring, regulator, and a battery will be required.

Regards, Peter.

[Rex]

Depends on how many miles you anticipate doing. The comm will eventually "glaze" whether there's a battery fitted or not. Personally I'd fit a battery etc regardless.