I have been playing around with the canker battery pack and also the 18W PowerPort 2 charger. The 10050 only has one port, which I somehow overlooked in making the comparisons.
It is quite compact for the capacity, but also dense. Unfortunately the charging does not operate in a pass through mode, so that limits the utility.
I do like the charger though. It is is a bit heavy for the size, but that's to be expected for a continuous 18W output. The power light is blue for idle or low loads and green for the high power mode.