Dynamo charging charging circuit for AA NiCd/NiMh?
I've just got hold of a Union 6V 3W dynamo with lights. I'd like to charge 4/5/6 x AA batteries during the day then switch to the batteries for the lights at night. I'm switching out the old bulbs for LEDs.
Any pointers or relevant 'ibles would be great.
Thanks in advance people.