What kind of train I can recharge the devices? I will not travel with ICE because it is too fast. I would like to take slower ones. I will travel at night.My destinations are Munich - Nuremberg/ Nuremberg - Cologne/ Cologne - Dresden/ and Dresden - Berlin. Sometimes, I will prefer to sleep on trains. Could you please recommend the trains or buses (coaches) for me please? Is travelling by coaches cheaper than travelling by train? Thank you in advance.