When a 3V cell battery is connected to the Electron over VBAT and GND, the Electron attempts to turn on and then goes into a fault mode with the RGB LED showing red.
I’ve found this information in the datasheet, but there is no link:
VBAT Supply to the internal RTC, backup registers and SRAM when 3V3 is not present (1.65 to 3.6VDC). The Pin is internally connected to 3V3 supply via a 0 ohm resistor. If you wish to power is via an external supply, you’ll need to remove this resistor. Instructions to remove this resistor can be found here
Seems as though this may be expected behavior. If I want to remove the connection to 3.3V power, where are these instructions?