This is what you need, even if you need to get a transformer. Schumacher Electric Manual Trickle Universal Battery Charger - JCWhitney
Just buy a voltage regulator with a 110v socket on it. However if you do f**k up and put into a 220v socket, Sonex appliance repair shop close to Du Ek Sam (Honda) bike shop, will repair it. So speaks the voice of experience.....:D
