Have a Ctek XS 0.8 for the bikes and an MXS5.0 for the car , bought them from a place in QLD as well as a couple of Optima batteries.

I think the Ctek's are manufactured in china (what isn't) but have had no problems with mine so far.

Ctek is worthwhile , and I can vouch that it is a decent bit of charger at an incredibly low price. Here are some suggestions on chargers. Projecta, icharger and Xstar too have better stuff at best price.