Hello dear motor-talk-community, the winter is at the door and the annual problem of a cityr with rental apartment without garage is approaching. The good R1100RT has to be wintered. Now I have no space with power socket at my disposal this year. So I can not recharge the battery in the spring. Overbridge or expand before is unfortunately not possible for me, because you have to disassemble the whole motorcycle with this model to get to the battery. My I dee: I charge the battery in spring with a portable power station – connected to the on-board socket. Now the question of the electronic muffle to the community: Is this possible? What do I have to pay attention to? 1000 thanks and many greetings Muhackl