Hi there.
Looks like the link to the charger didn't work properly, The One I got is called a Sigma AC/DC charger. If you search on the Ripmax site for Sigma, you'll find it.
http://www.ripmax.com/Product_Images...o/o-ip2850.jpg
Maybe this link will work to the picture.
I've dropped you a PM about the ZX-5, charger and batteries ! Cheers for the comments on the work, whats up there is only a small bit of what I do, just don't seem to have time to keep it up to date. PM me if you can put any work my way