dc-dc step up converter

[72dozer`]

iam trying to run a 24 volt acc on a 12volt system 5-6 amps max ...
does anyone know where to get a converter . or how to make it and i do not want to run 2 batts

 

[Wannabecrawler]

iam trying to run a 24 volt acc on a 12volt system 5-6 amps max ...
does anyone know where to get a converter . or how to make it and i do not want to run 2 batts

This site has a pretty nice one but a little expensive.http://www.zahninc.com/su11.html