I doubt that you can do take these batteries on international flights at all: http://www.britishairways.com/cms/global/pdfs/lithium_battery.pdf http://www.briti

I doubt that you can do take these batteries on international flights at all: http://www.britishairways.com/cms/global/pdfs/lithium_battery.pdf http://www.britishairways.com/cms/global/pdfs/lithium_batter... states that no Li batteries with >160wh are allowed on board or in checked baggage. The Trontium has 290wh.