For all those interested i got a reply from
MA support...
They said that if your Reader stops working you can send it over and they will replace it ... if they find it working you will have to cover the transport costs...
Also when you ship the reader it is possible to disable the Gold Card security for your account so that you can still play
Personaly i wouldnt dare disable the additional security wouldnt want to loose all my belongings in
EU in case someone actually already has my account login and password :P
So i guess i'll be buying an additional reader/more (cheaper) batteries sometime end of next year or so
Best Regards
Ido