RCU Forums - Prophet Plus AC/DC Peak Charger

Hey I've just recceived a Prophet Plus AC/DC Peak Charger from America and tried to use it to charge my venom 4200mah Ni-Mh battery for my drifter. I plugged it in and it beeped (which is what its supposed to do) but then it cut out. Im charging at 4 amps and find that the 1 amp fuse is shot. I was looking pretty stupid at that stage so i didn't waste time replacing it with the spare cos Im charging at 4 amps (it would blow again). But the charger won't function unless that 1 amp fuse is in so I'm pretty much stumped at what to do. Does it have anything to do with us Australians having a 240v mains power whilst americans have a 110v mains? Any help would be greatly appreciated.