@gavin67890 [Groan] Bad USB lead out of the packet!
But in case it helps others:
This helped identify the issue:
Serial.printf("Bat Voltage: %dmv\r\n", TimerCAM.Power.getBatteryVoltage());
Serial.printf("Bat Level: %d%%\r\n", TimerCAM.Power.getBatteryLevel());
delay(1000);