Battery Status not returning Charging Flag

I’m sending AT+CBC to get details of the battery and charging status. Battery Level seems to be accurate, however the charging flag is always returning 0 whether I have a USB cable plugged in or not.

Any reason the RAK5010 shouldn’t send and receive the AT+CBC command correctly?

My debug output:


+CBC: 0,90,4120

90 = Percent of battery
4120 = Voltage of battery (/1000)
The 0 in the first position should be 1 if charging or 2 if complete. 0 indicates no charging.