Registered Forum User
 Ducati Meccanica
     Posts: 2,263
 Join Date: Aug 2003
 Location: Wimbourne, Dorset
 Mood: I'm so happyyyyyyyyyyyy
  
    
     Or the  tiny Yuasa YTZ7S (4lbs) with 900+ amps of in-rush current.
 
 Make sure all your connections are really clean. Toothbrush size ss, brass or copper brush till surfaces are shiny.