Howdy folks, ironically I did not have an account on here.
No$gba Converter has a useful faq you might want to use if you have problems
http://www.angelfire.com/games6/battery/
I apologise in advance for it being an angefire site, I know, I'm not an angelfire fan myself but I havent had time to port it over to a domain yet.
Hope that helps
- KermEd