The Q battery discharges while connected to a PC?

[jwillyf]

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After uploading some images from my Q to my Windows PC, I inadvertently left the camera attached by USB cable to the PC in the on S position of the power switch. The battery had two bars of capacity left. I worked on the images for a couple of hours and having found the camera still to be attached, I removed it. I did not notice whether the screen was still displaying the Data Mass Storage message, but the camera would not then switch on because of a flat battery. Replacing it with a second charged battery had it working fine.

Presumably while switched on and connected to a PC, the battery is steadily discharging?

[ramarren]

Most likely yes. Unless the Q has in-camera USB charging, there's no way for a USB connection to power it. 

[jwillyf]

No. It's not possible to charge the Q in camera. I presume when the camera is connected to the PC, it bypasses the camera software including the automatic power down after an interval of non-use.

Edited March 17, 2019 by jwillyf

[LexS]

USB is 5V and that is not enough: the charger gives >7.4 Volt. It is not possible to charge the battery when connected to usb. The charged battery is approx 7.4/7.5V

 

Edited March 18, 2019 by LexS