I have a Victron Phoenix Multi Plus 24/3000/70 charger/inverter on my European boat which was installed in France around 2009. The data sheet states that the charger only has an input frequency range of between 45-55hz. However the manual also states that the product can operate at 50hz or 60hz. Can anyone please confirm if the charger will work ok if i plug it into a shore supply in the US of 220v at 60hz? I don't mind if it passes through 60hz but i want to be sure that it wont blow up the charger.