I'm located in Australia and interested in an x-star premium. I can't find any information on the compatibility of the battery charger with Australian mains voltage (240v) (or any country other than the USA for that matter.) The manual on the battery charger describes it as 14.8v but nothing else relating to voltage. I'm trying to clarify if I can just add a plug adapter and it's ready to go, or if a step-down transformer is required. Can anyone check the charger, does it say 110-240v, or just 110v? Trying to understand if this is in issue before taking the plunge. Thank you.