The image shows my new ensemble of USB gadgets, the mobile power supply chain I will be using for further touring. Located uppermost is the JaWeTec bikecharger, that I had used formerly. See my previous posts about this topic. The bikecharger is connected to the dynohub und will create constant DC of 5V at its USB-out which is wired to DC-in of the new lightweighted SwissBatteries PowerTank M. This basically is some sort of optimized rechargable LiPo battery pack with some electronic circuit. The PowerTank will on the other hand permanently feed the Garmin GPS (without internal batteries) at its USB-out. This works, but I need to test whether the bikecharger will be able to keep up enough power level to ensure continuous operation of the GPS in the long run.
Update: everything works as expected in the long run, but the Jawetec bikecharger is no longer available unfortunately. However, some alternative products were established.