Type 6N12-4A - Part no 31500-201-000
Check out the YUASA web site, loads of information about your battery, those questions
you've always wanted answering, but were too afraid to ask.
http://www.yuasabatteries.co.uk/ Click on link to access the Yuasa site
Alternative Part numbers 6N12-4A , 6N12A-2C (B54-6) , 6N12A-2D (B54-6A), 6N12-1B
If you can't find the OEM battery an alternative is a 15-AH-MBJ-6V we think fitted to CD200, a bit smaller but does the job.