Cheaper option would be a ‘Dyanamator’ – looks like a dynamo but is an alternator http://www.accuspark.co.uk/dynamator.htm
Downside, they only output 45 amps, whereas a modern alternator will output circa 70 amps which is better if your doing a lot of stop start driving/traffic queuing/crawling along.
Personally I went for the higher output rather than the traditional dynamo look.
Anonymous