Just a small update: Seems like shortening the data wires is still needed for the whole shebang to work correctly. The good news is that shortening the data wires solves the low current issue. However, this complicates the whole endeavor. Also thanks MINKIN2 for the feedback. I am using the palm pre touchstone kit. I made some more tests with this kit. I could measure currents up to ~500 mA. I didn't go for higher values as this is sufficient for me at least. As a side note: I used resistors with different values for testing and measuring the output current. Still, I made some interesting observation with respect to the behavior of the touchstone kit when confronted with different loads. Using a load of approximately 100 mA I could reproduce the phenomenon of the receiver cyclically being active and inactive. Interestingly this issue only showed for that particular load. Loads below and above (tested up to 500mA) did not show this issue. It seems the N9 charging circuits/algorithms only draw very low current when only the power wires are connected. As mentioned above, shortening the data wires results in a much higher charging current. I tested this by observing the charging time as well as the estimated charging time left. The results with the data wire shortened indicate a very much higher charging current. So far.. pictures are still yet to come. I will also update the first post once I have the time.