A small widget came with the DJI charger in the M2 fly more kit. It is obvious that one end has 2 USB out ports and the other side connects to a M2 battery. With the battery connected it wouldn't charge my phone so it must have some other use. What is this widget designed for? I'm sure it's in the instructions somewhere, but DJI has yet to publish the geriatric version large enough for an older human to read.
TIA

TIA
