I have an electron that I am planning on powering with solar/battery. I am trying to do this using the power shield. Unfortunately, I am having issues getting the electron or the shield itself to power up when everything but the battery is removed.
The shield powers up with the electron when dc power from usb is applied. If I then plug in the battery, the charge status light turns blue (and if I leave it long enough solid red). This tells me the battery is being recognized at least. But if I plug in the battery alone, no lights turn on.
I am aware of the issues with inrush current on the power shield. I have not added the recommended capacitor yet, though if I have usb and battery connected, and then unplug usb, everything turns off immediately. This indicates to me that there is a different problem at play.
I have tried three batteries and two power shields (all brand new).
Any help would be greatly appreciated.