We have the opposite scenario. 'Spirit of Sobraon' is a 240v 50hz boat and we are now cruising in Japan
on our way to Alaska
predominately has only 100v 60hz available and Korea
We haven't had too many problems. If you have a reasonable solar
array and a 240v genset it is very manageable.
A suitably sized voltage transformer is normally enough to handle battery charging
which in reality is all you really need. Most of the boat will be powered by 12v.
No matter where you go getting expert help to fix and repair is always an issue. No matter what the voltage.
If you want to run AC that is a different problem but manageable.
In the past 6 months we have only needed to run the genset a hand full of times when no power was available in anchorages
. We only do it to run our Mastervolt inverter charger
to charge the house bank to float. This keeps our batteries
If you intend to go off shore you are continually going to be changing plug
ends and adapting to different power supplies any way.
Good luck with your search.. Don't discount Malaysia
. A lot of boats have backed up there and there are some good bargains.