Just wanted to point out that it’s possible to run a pi with an edimax wifi adapter and an attached flotilla on a usual power Bank. I am using an Anker 10000mAh 3.7V 38Wh. I have the live following robot up and running with no problems at all. Cheers!
I tried some more configurations and have encountered some stuttering. I attached a color Sensor and at some point the motors and the LEDs on the color sensor just started blinking in a continuous pattern. I don’t know if it’s related to the battery or to a Bad wifi signal.
Were the LEDs on the dock also blinking? It’s possible it could be that your Pi’s current limiter is kicking in and cutting off power to the dock over and over.
You can fix this by adding:
max_usb_current=1 or possibly
safe_mode_gpio=4 into /boot/config.txt
But you need extra HW to check the battery level and send a signal to
the RPi GPIO pins whether the battery is low or not. A simple background programme on the RPi
then scans that GPIO Pin and start a “halt” is required. .
Otherwise you could ruin your SD if it writing and all of a sudden there is no voltage.
The is a device called PIJUICE which could be of use…